man: ship pre-build man pages
This addresses https://github.com/gentoo/eudev/issues/98 Signed-off-by: Anthony G. Basile <blueness@gentoo.org>
This commit is contained in:
Anthony G. Basile
parent
8b1eb9c754
commit
96fe7e83d4
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@ -48,10 +48,6 @@ docs/libudev/libudev.prerequisites
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docs/libudev/libudev.signals
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docs/libudev/html/
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docs/libudev/xml/
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man/udev.7
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man/udev.conf.5
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man/udevd.8
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man/udevadm.8
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rule_generator/write_cd_rules
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rule_generator/write_net_rules
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@ -1,3 +1,6 @@
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#!/bin/sh
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autoreconf -f -i
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cd man
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./make.sh
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@ -18,30 +18,5 @@ MANPAGES = \
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udevd.8 \
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udevadm.8
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man_MANS = \
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dist_man_MANS = \
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$(MANPAGES)
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CLEANFILES = \
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$(MANPAGES)
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XSLTPROC_FLAGS += \
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--stringparam man.output.quietly 1 \
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--stringparam funcsynopsis.style ansi \
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--stringparam man.th.extra1.suppress 1 \
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--stringparam man.authors.section.enabled 0 \
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--stringparam man.copyright.section.enabled 0
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XSLTPROC_PROCESS_MAN = \
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$(XSLTPROC) -o $@ $(XSLTPROC_FLAGS) http://docbook.sourceforge.net/release/xsl/current/manpages/docbook.xsl $<
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udev.7: udev.xml
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$(XSLTPROC_PROCESS_MAN)
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udev.conf.5: udev.conf.xml
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$(XSLTPROC_PROCESS_MAN)
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udevd.8: udevd.xml
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$(XSLTPROC_PROCESS_MAN)
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udevadm.8: udevadm.xml
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$(XSLTPROC_PROCESS_MAN)
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@ -0,0 +1,18 @@
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#/bin/sh
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XSLTPROC="/usr/bin/xsltproc"
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XSLTPROC_FLAGS="--stringparam man.output.quietly 1 \
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--stringparam funcsynopsis.style ansi \
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--stringparam man.th.extra1.suppress 1 \
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--stringparam man.authors.section.enabled 0 \
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--stringparam man.copyright.section.enabled 0"
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xslt_proc() {
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$XSLTPROC -o $1.$2 $XSLTPROC_FLAGS http://docbook.sourceforge.net/release/xsl/current/manpages/docbook.xsl $1.xml
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}
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xslt_proc udev 7
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xslt_proc udev.conf 5
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xslt_proc udevd 8
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xslt_proc udevadm 8
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@ -0,0 +1,573 @@
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'\" t
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.\" Title: udev
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.\" Author: Greg Kroah-Hartmann <greg@kroah.com>
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.\" Generator: DocBook XSL Stylesheets v1.78.0 <http://docbook.sf.net/>
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.\" Date: 10/31/2014
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.\" Manual: udev
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.\" Source: udev
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.\" Language: English
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.\"
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.TH "UDEV" "7" "" "udev" "udev"
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.\" -----------------------------------------------------------------
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.\" * Define some portability stuff
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.\" -----------------------------------------------------------------
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.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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.\" http://bugs.debian.org/507673
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.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html
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.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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.ie \n(.g .ds Aq \(aq
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.el .ds Aq '
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.\" -----------------------------------------------------------------
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.\" * set default formatting
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.\" -----------------------------------------------------------------
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.\" disable hyphenation
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.nh
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.\" disable justification (adjust text to left margin only)
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.ad l
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.\" -----------------------------------------------------------------
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.\" * MAIN CONTENT STARTS HERE *
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.\" -----------------------------------------------------------------
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.SH "NAME"
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udev \- Dynamic device management
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.SH "DESCRIPTION"
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.PP
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udev supplies the system software with device events, manages permissions of device nodes and may create additional symlinks in the
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/dev
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directory, or renames network interfaces\&. The kernel usually just assigns unpredictable device names based on the order of discovery\&. Meaningful symlinks or network device names provide a way to reliably identify devices based on their properties or current configuration\&.
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.PP
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The udev daemon,
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\fBudevd\fR(8), receives device uevents directly from the kernel whenever a device is added or removed from the system, or it changes its state\&. When udev receives a device event, it matches its configured set of rules against various device attributes to identify the device\&. Rules that match may provide additional device information to be stored in the udev database or to be used to create meaningful symlink names\&.
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.PP
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All device information udev processes is stored in the udev database and sent out to possible event subscribers\&. Access to all stored data and the event sources is provided by the library libudev\&.
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.SH "RULES FILES"
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.PP
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The udev rules are read from the files located in the system rules directory
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/lib/udev/rules\&.d, the volatile runtime directory
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/run/udev/rules\&.d
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and the local administration directory
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/etc/udev/rules\&.d\&. All rules files are collectively sorted and processed in lexical order, regardless of the directories in which they live\&. However, files with identical filenames replace each other\&. Files in
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/etc
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have the highest priority, files in
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/run
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take precedence over files with the same name in
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/lib\&. This can be used to override a system\-supplied rules file with a local file if needed; a symlink in
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/etc
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with the same name as a rules file in
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/lib, pointing to
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/dev/null, disables the rules file entirely\&. Rule files must have the extension
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\&.rules; other extensions are ignored\&.
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.PP
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Every line in the rules file contains at least one key\-value pair\&. Except for empty lines or lines beginning with
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#, which are ignored\&. There are two kinds of keys: match and assignment\&. If all match keys match against their values, the rule gets applied and the assignment keys get the specified values assigned\&.
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.PP
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A matching rule may rename a network interface, add symlinks pointing to the device node, or run a specified program as part of the event handling\&.
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.PP
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A rule consists of a comma\-separated list of one or more key\-value pairs\&. Each key has a distinct operation, depending on the used operator\&. Valid operators are:
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.PP
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==
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.RS 4
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Compare for equality\&.
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.RE
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.PP
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!=
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.RS 4
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Compare for inequality\&.
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.RE
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.PP
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=
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.RS 4
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Assign a value to a key\&. Keys that represent a list are reset and only this single value is assigned\&.
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.RE
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.PP
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+=
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.RS 4
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Add the value to a key that holds a list of entries\&.
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.RE
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.PP
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\-=
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.RS 4
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Remove the value from a key that holds a list of entries\&.
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.RE
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.PP
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:=
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.RS 4
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Assign a value to a key finally; disallow any later changes\&.
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.RE
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.PP
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The following key names can be used to match against device properties\&. Some of the keys also match against properties of the parent devices in sysfs, not only the device that has generated the event\&. If multiple keys that match a parent device are specified in a single rule, all these keys must match at one and the same parent device\&.
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.PP
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\fIACTION\fR
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.RS 4
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Match the name of the event action\&.
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.RE
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.PP
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\fIDEVPATH\fR
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.RS 4
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Match the devpath of the event device\&.
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.RE
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.PP
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\fIKERNEL\fR
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.RS 4
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Match the name of the event device\&.
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.RE
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.PP
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\fINAME\fR
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.RS 4
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Match the name of a network interface\&. It can be used once the NAME key has been set in one of the preceding rules\&.
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.RE
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.PP
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\fISYMLINK\fR
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.RS 4
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Match the name of a symlink targeting the node\&. It can be used once a SYMLINK key has been set in one of the preceding rules\&. There may be multiple symlinks; only one needs to match\&.
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.RE
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.PP
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\fISUBSYSTEM\fR
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.RS 4
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Match the subsystem of the event device\&.
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.RE
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.PP
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\fIDRIVER\fR
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.RS 4
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Match the driver name of the event device\&. Only set this key for devices which are bound to a driver at the time the event is generated\&.
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.RE
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.PP
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\fIATTR{\fR\fI\fIfilename\fR\fR\fI}\fR
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.RS 4
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Match sysfs attribute values of the event device\&. Trailing whitespace in the attribute values is ignored unless the specified match value itself contains trailing whitespace\&.
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.RE
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.PP
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\fIKERNELS\fR
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.RS 4
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Search the devpath upwards for a matching device name\&.
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.RE
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.PP
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\fISUBSYSTEMS\fR
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.RS 4
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Search the devpath upwards for a matching device subsystem name\&.
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.RE
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.PP
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\fIDRIVERS\fR
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.RS 4
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Search the devpath upwards for a matching device driver name\&.
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.RE
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.PP
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\fIATTRS{\fR\fI\fIfilename\fR\fR\fI}\fR
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.RS 4
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Search the devpath upwards for a device with matching sysfs attribute values\&. If multiple
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\fIATTRS\fR
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matches are specified, all of them must match on the same device\&. Trailing whitespace in the attribute values is ignored unless the specified match value itself contains trailing whitespace\&.
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.RE
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.PP
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\fITAGS\fR
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.RS 4
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Search the devpath upwards for a device with matching tag\&.
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.RE
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.PP
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\fIENV{\fR\fI\fIkey\fR\fR\fI}\fR
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.RS 4
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Match against a device property value\&.
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.RE
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.PP
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\fITAG\fR
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.RS 4
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Match against a device tag\&.
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.RE
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.PP
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\fITEST{\fR\fI\fIoctal mode mask\fR\fR\fI}\fR
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.RS 4
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Test the existence of a file\&. An octal mode mask can be specified if needed\&.
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.RE
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.PP
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\fIPROGRAM\fR
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.RS 4
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Execute a program to determine whether there is a match; the key is true if the program returns successfully\&. The device properties are made available to the executed program in the environment\&. The program\*(Aqs standard output is available in the
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\fIRESULT\fR
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key\&.
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.sp
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This can only be used for very short\-running foreground tasks\&. For details, see
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\fIRUN\fR\&.
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.RE
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.PP
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\fIRESULT\fR
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.RS 4
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Match the returned string of the last
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\fIPROGRAM\fR
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call\&. This key can be used in the same or in any later rule after a
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\fIPROGRAM\fR
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call\&.
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.RE
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.PP
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Most of the fields support shell glob pattern matching and alternate patterns\&. The following special characters are supported:
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.PP
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*
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.RS 4
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Matches zero or more characters\&.
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.RE
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.PP
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?
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.RS 4
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Matches any single character\&.
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.RE
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.PP
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[]
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.RS 4
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Matches any single character specified within the brackets\&. For example, the pattern string
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tty[SR]
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would match either
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ttyS
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or
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ttyR\&. Ranges are also supported via the
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\-
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character\&. For example, to match on the range of all digits, the pattern
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[0\-9]
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could be used\&. If the first character following the
|
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[
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||||
is a
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!, any characters not enclosed are matched\&.
|
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.RE
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.PP
|
||||
|
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.RS 4
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Separates alternative patterns\&. For example, the pattern string
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abc|x*
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would match either
|
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abc
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or
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x*\&.
|
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.RE
|
||||
.PP
|
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The following keys can get values assigned:
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.PP
|
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\fINAME\fR
|
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.RS 4
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The name to use for a network interface\&. The name of a device node cannot be changed by udev, only additional symlinks can be created\&.
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.RE
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.PP
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\fISYMLINK\fR
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.RS 4
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The name of a symlink targeting the node\&. Every matching rule adds this value to the list of symlinks to be created\&.
|
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.sp
|
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The set of characters to name a symlink is limited\&. Allowed characters are
|
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0\-9A\-Za\-z#+\-\&.:=@_/, valid UTF\-8 character sequences, and
|
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\ex00
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hex encoding\&. All other characters are replaced by a
|
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_
|
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character\&.
|
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.sp
|
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Multiple symlinks may be specified by separating the names by the space character\&. In case multiple devices claim the same name, the link always points to the device with the highest link_priority\&. If the current device goes away, the links are re\-evaluated and the device with the next highest link_priority becomes the owner of the link\&. If no link_priority is specified, the order of the devices (and which one of them owns the link) is undefined\&.
|
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.sp
|
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Symlink names must never conflict with the kernel\*(Aqs default device node names, as that would result in unpredictable behavior\&.
|
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.RE
|
||||
.PP
|
||||
\fIOWNER\fR, \fIGROUP\fR, \fIMODE\fR
|
||||
.RS 4
|
||||
The permissions for the device node\&. Every specified value overrides the compiled\-in default value\&.
|
||||
.RE
|
||||
.PP
|
||||
\fISECLABEL{\fR\fI\fImodule\fR\fR\fI}\fR
|
||||
.RS 4
|
||||
Applies the specified Linux Security Module label to the device node\&.
|
||||
.RE
|
||||
.PP
|
||||
\fIATTR{\fR\fI\fIkey\fR\fR\fI}\fR
|
||||
.RS 4
|
||||
The value that should be written to a sysfs attribute of the event device\&.
|
||||
.RE
|
||||
.PP
|
||||
\fIENV{\fR\fI\fIkey\fR\fR\fI}\fR
|
||||
.RS 4
|
||||
Set a device property value\&. Property names with a leading
|
||||
\&.
|
||||
are neither stored in the database nor exported to events or external tools (run by, for example, the
|
||||
\fIPROGRAM\fR
|
||||
match key)\&.
|
||||
.RE
|
||||
.PP
|
||||
\fITAG\fR
|
||||
.RS 4
|
||||
Attach a tag to a device\&. This is used to filter events for users of libudev\*(Aqs monitor functionality, or to enumerate a group of tagged devices\&. The implementation can only work efficiently if only a few tags are attached to a device\&. It is only meant to be used in contexts with specific device filter requirements, and not as a general\-purpose flag\&. Excessive use might result in inefficient event handling\&.
|
||||
.RE
|
||||
.PP
|
||||
\fIRUN{\fR\fI\fItype\fR\fR\fI}\fR
|
||||
.RS 4
|
||||
Add a program to the list of programs to be executed after processing all the rules for a specific event, depending on
|
||||
type:
|
||||
.PP
|
||||
program
|
||||
.RS 4
|
||||
Execute an external program specified as the assigned value\&. If no absolute path is given, the program is expected to live in
|
||||
/lib/udev, otherwise, the absolute path must be specified\&.
|
||||
.sp
|
||||
This is the default if no
|
||||
\fItype\fR
|
||||
is specified\&.
|
||||
.RE
|
||||
.PP
|
||||
builtin
|
||||
.RS 4
|
||||
As
|
||||
\fIprogram\fR, but use one of the built\-in programs rather than an external one\&.
|
||||
.RE
|
||||
.sp
|
||||
The program name and following arguments are separated by spaces\&. Single quotes can be used to specify arguments with spaces\&.
|
||||
.sp
|
||||
This can only be used for very short\-running foreground tasks\&. Running an event process for a long period of time may block all further events for this or a dependent device\&.
|
||||
.sp
|
||||
Starting daemons or other long\-running processes is not appropriate for udev; the forked processes, detached or not, will be unconditionally killed after the event handling has finished\&.
|
||||
.RE
|
||||
.PP
|
||||
\fILABEL\fR
|
||||
.RS 4
|
||||
A named label to which a
|
||||
\fIGOTO\fR
|
||||
may jump\&.
|
||||
.RE
|
||||
.PP
|
||||
\fIGOTO\fR
|
||||
.RS 4
|
||||
Jumps to the next
|
||||
\fILABEL\fR
|
||||
with a matching name\&.
|
||||
.RE
|
||||
.PP
|
||||
\fIIMPORT{\fR\fI\fItype\fR\fR\fI}\fR
|
||||
.RS 4
|
||||
Import a set of variables as device properties, depending on
|
||||
type:
|
||||
.PP
|
||||
program
|
||||
.RS 4
|
||||
Execute an external program specified as the assigned value and import its output, which must be in environment key format\&. Path specification, command/argument separation, and quoting work like in
|
||||
\fIRUN\fR\&.
|
||||
.RE
|
||||
.PP
|
||||
builtin
|
||||
.RS 4
|
||||
Similar to
|
||||
program, but use one of the built\-in programs rather than an external one\&.
|
||||
.RE
|
||||
.PP
|
||||
file
|
||||
.RS 4
|
||||
Import a text file specified as the assigned value, the content of which must be in environment key format\&.
|
||||
.RE
|
||||
.PP
|
||||
db
|
||||
.RS 4
|
||||
Import a single property specified as the assigned value from the current device database\&. This works only if the database is already populated by an earlier event\&.
|
||||
.RE
|
||||
.PP
|
||||
cmdline
|
||||
.RS 4
|
||||
Import a single property from the kernel command line\&. For simple flags the value of the property is set to
|
||||
1\&.
|
||||
.RE
|
||||
.PP
|
||||
parent
|
||||
.RS 4
|
||||
Import the stored keys from the parent device by reading the database entry of the parent device\&. The value assigned to
|
||||
\fBIMPORT{parent}\fR
|
||||
is used as a filter of key names to import (with the same shell glob pattern matching used for comparisons)\&.
|
||||
.RE
|
||||
.sp
|
||||
This can only be used for very short\-running foreground tasks\&. For details see
|
||||
\fBRUN\fR\&.
|
||||
.RE
|
||||
.PP
|
||||
\fIWAIT_FOR\fR
|
||||
.RS 4
|
||||
Wait for a file to become available or until a timeout of 10 seconds expires\&. The path is relative to the sysfs device; if no path is specified, this waits for an attribute to appear\&.
|
||||
.RE
|
||||
.PP
|
||||
\fIOPTIONS\fR
|
||||
.RS 4
|
||||
Rule and device options:
|
||||
.PP
|
||||
\fBlink_priority=\fR\fB\fIvalue\fR\fR
|
||||
.RS 4
|
||||
Specify the priority of the created symlinks\&. Devices with higher priorities overwrite existing symlinks of other devices\&. The default is 0\&.
|
||||
.RE
|
||||
.PP
|
||||
\fBstring_escape=\fR\fB\fInone|replace\fR\fR
|
||||
.RS 4
|
||||
Usually control and other possibly unsafe characters are replaced in strings used for device naming\&. The mode of replacement can be specified with this option\&.
|
||||
.RE
|
||||
.PP
|
||||
\fBstatic_node=\fR
|
||||
.RS 4
|
||||
Apply the permissions specified in this rule to the static device node with the specified name\&. Static device node creation can be requested by kernel modules\&. These nodes might not have a corresponding kernel device at the time udevd is started; they can trigger automatic kernel module loading\&.
|
||||
.RE
|
||||
.PP
|
||||
\fBwatch\fR
|
||||
.RS 4
|
||||
Watch the device node with inotify; when the node is closed after being opened for writing, a change uevent is synthesized\&.
|
||||
.RE
|
||||
.PP
|
||||
\fBnowatch\fR
|
||||
.RS 4
|
||||
Disable the watching of a device node with inotify\&.
|
||||
.RE
|
||||
.RE
|
||||
.PP
|
||||
The
|
||||
\fINAME\fR,
|
||||
\fISYMLINK\fR,
|
||||
\fIPROGRAM\fR,
|
||||
\fIOWNER\fR,
|
||||
\fIGROUP\fR,
|
||||
\fIMODE\fR, and
|
||||
\fIRUN\fR
|
||||
fields support simple string substitutions\&. The
|
||||
\fIRUN\fR
|
||||
substitutions are performed after all rules have been processed, right before the program is executed, allowing for the use of device properties set by earlier matching rules\&. For all other fields, substitutions are performed while the individual rule is being processed\&. The available substitutions are:
|
||||
.PP
|
||||
\fB$kernel\fR, \fB%k\fR
|
||||
.RS 4
|
||||
The kernel name for this device\&.
|
||||
.RE
|
||||
.PP
|
||||
\fB$number\fR, \fB%n\fR
|
||||
.RS 4
|
||||
The kernel number for this device\&. For example,
|
||||
sda3
|
||||
has kernel number
|
||||
3\&.
|
||||
.RE
|
||||
.PP
|
||||
\fB$devpath\fR, \fB%p\fR
|
||||
.RS 4
|
||||
The devpath of the device\&.
|
||||
.RE
|
||||
.PP
|
||||
\fB$id\fR, \fB%b\fR
|
||||
.RS 4
|
||||
The name of the device matched while searching the devpath upwards for
|
||||
\fBSUBSYSTEMS\fR,
|
||||
\fBKERNELS\fR,
|
||||
\fBDRIVERS\fR, and
|
||||
\fBATTRS\fR\&.
|
||||
.RE
|
||||
.PP
|
||||
\fB$driver\fR
|
||||
.RS 4
|
||||
The driver name of the device matched while searching the devpath upwards for
|
||||
\fBSUBSYSTEMS\fR,
|
||||
\fBKERNELS\fR,
|
||||
\fBDRIVERS\fR, and
|
||||
\fBATTRS\fR\&.
|
||||
.RE
|
||||
.PP
|
||||
\fB$attr{\fR\fB\fIfile\fR\fR\fB}\fR, \fB%s{\fR\fB\fIfile\fR\fR\fB}\fR
|
||||
.RS 4
|
||||
The value of a sysfs attribute found at the device where all keys of the rule have matched\&. If the matching device does not have such an attribute, and a previous
|
||||
\fBKERNELS\fR,
|
||||
\fBSUBSYSTEMS\fR,
|
||||
\fBDRIVERS\fR, or
|
||||
\fBATTRS\fR
|
||||
test selected a parent device, then the attribute from that parent device is used\&.
|
||||
.sp
|
||||
If the attribute is a symlink, the last element of the symlink target is returned as the value\&.
|
||||
.RE
|
||||
.PP
|
||||
\fB$env{\fR\fB\fIkey\fR\fR\fB}\fR, \fB%E{\fR\fB\fIkey\fR\fR\fB}\fR
|
||||
.RS 4
|
||||
A device property value\&.
|
||||
.RE
|
||||
.PP
|
||||
\fB$major\fR, \fB%M\fR
|
||||
.RS 4
|
||||
The kernel major number for the device\&.
|
||||
.RE
|
||||
.PP
|
||||
\fB$minor\fR, \fB%m\fR
|
||||
.RS 4
|
||||
The kernel minor number for the device\&.
|
||||
.RE
|
||||
.PP
|
||||
\fB$result\fR, \fB%c\fR
|
||||
.RS 4
|
||||
The string returned by the external program requested with
|
||||
\fIPROGRAM\fR\&. A single part of the string, separated by a space character, may be selected by specifying the part number as an attribute:
|
||||
%c{N}\&. If the number is followed by the
|
||||
+
|
||||
character, this part plus all remaining parts of the result string are substituted:
|
||||
%c{N+}\&.
|
||||
.RE
|
||||
.PP
|
||||
\fB$parent\fR, \fB%P\fR
|
||||
.RS 4
|
||||
The node name of the parent device\&.
|
||||
.RE
|
||||
.PP
|
||||
\fB$name\fR
|
||||
.RS 4
|
||||
The current name of the device\&. If not changed by a rule, it is the name of the kernel device\&.
|
||||
.RE
|
||||
.PP
|
||||
\fB$links\fR
|
||||
.RS 4
|
||||
A space\-separated list of the current symlinks\&. The value is only set during a remove event or if an earlier rule assigned a value\&.
|
||||
.RE
|
||||
.PP
|
||||
\fB$root\fR, \fB%r\fR
|
||||
.RS 4
|
||||
The udev_root value\&.
|
||||
.RE
|
||||
.PP
|
||||
\fB$sys\fR, \fB%S\fR
|
||||
.RS 4
|
||||
The sysfs mount point\&.
|
||||
.RE
|
||||
.PP
|
||||
\fB$devnode\fR, \fB%N\fR
|
||||
.RS 4
|
||||
The name of the device node\&.
|
||||
.RE
|
||||
.PP
|
||||
\fB%%\fR
|
||||
.RS 4
|
||||
The
|
||||
%
|
||||
character itself\&.
|
||||
.RE
|
||||
.PP
|
||||
\fB$$\fR
|
||||
.RS 4
|
||||
The
|
||||
$
|
||||
character itself\&.
|
||||
.RE
|
||||
.SH "HARDWARE DATABASE FILES"
|
||||
.PP
|
||||
The hwdb files are read from the files located in the system hwdb directory
|
||||
/lib/udev/hwdb\&.d, the volatile runtime directory
|
||||
/run/udev/hwdb\&.d
|
||||
and the local administration directory
|
||||
/etc/udev/hwdb\&.d\&. All hwdb files are collectively sorted and processed in lexical order, regardless of the directories in which they live\&. However, files with identical filenames replace each other\&. Files in
|
||||
/etc
|
||||
have the highest priority, files in
|
||||
/run
|
||||
take precedence over files with the same name in
|
||||
/lib\&. This can be used to override an hwdb file with a local file if needed; a symlink in
|
||||
/etc
|
||||
with the same name as a hwdb file in
|
||||
/lib, pointing to
|
||||
/dev/null, disables the hwdb file entirely\&. hwdb files must have the extension
|
||||
\&.hwdb; other extensions are ignored\&.
|
||||
.PP
|
||||
The hwdb file contains data records consisting of matches and associated key\-value pairs\&. Every record in the hwdb starts with one or more match string, specifying a shell glob to compare the database lookup string against\&. Multiple match lines are specified in additional consecutive lines\&. Every match line is compared indivdually, they are combined by OR\&. Every match line must start at the first character of the line\&.
|
||||
.PP
|
||||
The match lines are followed by one or more key\-value pair lines, which are recognized by a leading space character\&. The key name and value are separated by
|
||||
=\&. An empty line signifies the end of a record\&. Lines beginning with
|
||||
#
|
||||
are ignored\&.
|
||||
.PP
|
||||
The content of all hwdb files is read by
|
||||
\fBudevadm\fR(8)
|
||||
and compiled to a binary database located at
|
||||
/etc/udev/hwdb\&.bin\&. During runtime only the binary database is used\&.
|
||||
.SH "SEE ALSO"
|
||||
.PP
|
||||
|
||||
\fBudevd\fR(8),
|
||||
\fBudevadm\fR(8)
|
||||
|
|
@ -0,0 +1,60 @@
|
|||
'\" t
|
||||
.\" Title: udev.conf
|
||||
.\" Author: Kay Sievers <kay@vrfy.org>
|
||||
.\" Generator: DocBook XSL Stylesheets v1.78.0 <http://docbook.sf.net/>
|
||||
.\" Date: 10/31/2014
|
||||
.\" Manual: udev.conf
|
||||
.\" Source: systemd
|
||||
.\" Language: English
|
||||
.\"
|
||||
.TH "UDEV\&.CONF" "5" "" "systemd" "udev.conf"
|
||||
.\" -----------------------------------------------------------------
|
||||
.\" * Define some portability stuff
|
||||
.\" -----------------------------------------------------------------
|
||||
.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
||||
.\" http://bugs.debian.org/507673
|
||||
.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html
|
||||
.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
||||
.ie \n(.g .ds Aq \(aq
|
||||
.el .ds Aq '
|
||||
.\" -----------------------------------------------------------------
|
||||
.\" * set default formatting
|
||||
.\" -----------------------------------------------------------------
|
||||
.\" disable hyphenation
|
||||
.nh
|
||||
.\" disable justification (adjust text to left margin only)
|
||||
.ad l
|
||||
.\" -----------------------------------------------------------------
|
||||
.\" * MAIN CONTENT STARTS HERE *
|
||||
.\" -----------------------------------------------------------------
|
||||
.SH "NAME"
|
||||
udev.conf \- Configuration for device event managing daemon
|
||||
.SH "SYNOPSIS"
|
||||
.PP
|
||||
/etc/udev/udev\&.conf
|
||||
.SH "DESCRIPTION"
|
||||
.PP
|
||||
|
||||
\fBsystemd-udevd\fR(8)
|
||||
expects its main configuration file at
|
||||
/etc/udev/udev\&.conf\&. It consists of a set of variables allowing the user to override default udev values\&. All empty lines or lines beginning with \*(Aq#\*(Aq are ignored\&. The following variables can be set:
|
||||
.PP
|
||||
\fIudev_log\fR
|
||||
.RS 4
|
||||
The logging priority\&. Valid values are the numerical syslog priorities or their textual representations:
|
||||
\fBerr\fR,
|
||||
\fBinfo\fR
|
||||
and
|
||||
\fBdebug\fR\&.
|
||||
.RE
|
||||
.PP
|
||||
In addition,
|
||||
systemd\-udevd
|
||||
can be configured by command\-line options and the kernel commandline (see
|
||||
\fBsystemd-udevd\fR(8))\&.
|
||||
.SH "SEE ALSO"
|
||||
.PP
|
||||
|
||||
\fBsystemd-udevd\fR(8),
|
||||
\fBudev\fR(7),
|
||||
\fBudevadm\fR(8)
|
||||
|
|
@ -0,0 +1,399 @@
|
|||
'\" t
|
||||
.\" Title: udevadm
|
||||
.\" Author: Kay Sievers <kay@vrfy.org>
|
||||
.\" Generator: DocBook XSL Stylesheets v1.78.0 <http://docbook.sf.net/>
|
||||
.\" Date: 10/31/2014
|
||||
.\" Manual: udevadm
|
||||
.\" Source: systemd
|
||||
.\" Language: English
|
||||
.\"
|
||||
.TH "UDEVADM" "8" "" "systemd" "udevadm"
|
||||
.\" -----------------------------------------------------------------
|
||||
.\" * Define some portability stuff
|
||||
.\" -----------------------------------------------------------------
|
||||
.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
||||
.\" http://bugs.debian.org/507673
|
||||
.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html
|
||||
.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
||||
.ie \n(.g .ds Aq \(aq
|
||||
.el .ds Aq '
|
||||
.\" -----------------------------------------------------------------
|
||||
.\" * set default formatting
|
||||
.\" -----------------------------------------------------------------
|
||||
.\" disable hyphenation
|
||||
.nh
|
||||
.\" disable justification (adjust text to left margin only)
|
||||
.ad l
|
||||
.\" -----------------------------------------------------------------
|
||||
.\" * MAIN CONTENT STARTS HERE *
|
||||
.\" -----------------------------------------------------------------
|
||||
.SH "NAME"
|
||||
udevadm \- udev management tool
|
||||
.SH "SYNOPSIS"
|
||||
.HP \w'\fBudevadm\fR\ 'u
|
||||
\fBudevadm\fR [\fB\-\-debug\fR] [\fB\-\-version\fR] [\fB\-\-help\fR]
|
||||
.HP \w'\fBudevadm\ info\ \fR\fB\fIoptions\fR\fR\ 'u
|
||||
\fBudevadm info \fR\fB\fIoptions\fR\fR
|
||||
.HP \w'\fBudevadm\ trigger\ \fR\fB[options]\fR\ 'u
|
||||
\fBudevadm trigger \fR\fB[options]\fR
|
||||
.HP \w'\fBudevadm\ settle\ \fR\fB[options]\fR\ 'u
|
||||
\fBudevadm settle \fR\fB[options]\fR
|
||||
.HP \w'\fBudevadm\ control\ \fR\fB\fIcommand\fR\fR\ 'u
|
||||
\fBudevadm control \fR\fB\fIcommand\fR\fR
|
||||
.HP \w'\fBudevadm\ monitor\ \fR\fB[options]\fR\ 'u
|
||||
\fBudevadm monitor \fR\fB[options]\fR
|
||||
.HP \w'\fBudevadm\ hwdb\ \fR\fB[options]\fR\ 'u
|
||||
\fBudevadm hwdb \fR\fB[options]\fR
|
||||
.HP \w'\fBudevadm\ test\ \fR\fB[options]\fR\fB\ \fR\fB\fIdevpath\fR\fR\ 'u
|
||||
\fBudevadm test \fR\fB[options]\fR\fB \fR\fB\fIdevpath\fR\fR
|
||||
.HP \w'\fBudevadm\ test\-builtin\ \fR\fB[options]\fR\fB\ \fR\fB\fIcommand\fR\fR\fB\ \fR\fB\fIdevpath\fR\fR\ 'u
|
||||
\fBudevadm test\-builtin \fR\fB[options]\fR\fB \fR\fB\fIcommand\fR\fR\fB \fR\fB\fIdevpath\fR\fR
|
||||
.SH "DESCRIPTION"
|
||||
.PP
|
||||
\fBudevadm\fR
|
||||
expects a command and command specific options\&. It controls the runtime behavior of
|
||||
\fBudev\fR, requests kernel events, manages the event queue, and provides simple debugging mechanisms\&.
|
||||
.SH "OPTIONS"
|
||||
.PP
|
||||
\fB\-\-debug\fR
|
||||
.RS 4
|
||||
Print debug messages to standard error\&.
|
||||
.RE
|
||||
.PP
|
||||
\fB\-\-version\fR
|
||||
.RS 4
|
||||
Print version number\&.
|
||||
.RE
|
||||
.PP
|
||||
\fB\-h\fR, \fB\-\-help\fR
|
||||
.RS 4
|
||||
Print help text\&.
|
||||
.RE
|
||||
.SS "udevadm info [\fIOPTIONS\fR] [\fIDEVPATH\fR|\fIFILE\fR]"
|
||||
.PP
|
||||
Queries the udev database for device information stored in the udev database\&. It can also query the properties of a device from its sysfs representation to help creating udev rules that match this device\&.
|
||||
.PP
|
||||
\fB\-q\fR, \fB\-\-query=\fR\fB\fITYPE\fR\fR
|
||||
.RS 4
|
||||
Query the database for the specified type of device data\&. It needs the
|
||||
\fB\-\-path\fR
|
||||
or
|
||||
\fB\-\-name\fR
|
||||
to identify the specified device\&. Valid
|
||||
\fITYPE\fRs are:
|
||||
\fBname\fR,
|
||||
\fBsymlink\fR,
|
||||
\fBpath\fR,
|
||||
\fBproperty\fR,
|
||||
\fBall\fR\&.
|
||||
.RE
|
||||
.PP
|
||||
\fB\-p\fR, \fB\-\-path=\fR\fB\fIDEVPATH\fR\fR
|
||||
.RS 4
|
||||
The
|
||||
/sys
|
||||
path of the device to query, e\&.g\&.
|
||||
[/sys]/class/block/sda\&. Note that this option usually is not very useful, since
|
||||
\fBudev\fR
|
||||
can guess the type of the argument, so
|
||||
\fBudevadm \-\-devpath=/class/block/sda\fR
|
||||
is equivalent to
|
||||
\fBudevadm /sys/class/block/sda\fR\&.
|
||||
.RE
|
||||
.PP
|
||||
\fB\-n\fR, \fB\-\-name=\fR\fB\fIFILE\fR\fR
|
||||
.RS 4
|
||||
The name of the device node or a symlink to query, e\&.g\&.
|
||||
[/dev]/sda\&. Note that this option usually is not very useful, since
|
||||
\fBudev\fR
|
||||
can guess the type of the argument, so
|
||||
\fBudevadm \-\-name=sda\fR
|
||||
is equivalent to
|
||||
\fBudevadm /dev/sda\fR\&.
|
||||
.RE
|
||||
.PP
|
||||
\fB\-r\fR, \fB\-\-root\fR
|
||||
.RS 4
|
||||
Print absolute paths in
|
||||
\fBname\fR
|
||||
or
|
||||
\fBsymlink\fR
|
||||
query\&.
|
||||
.RE
|
||||
.PP
|
||||
\fB\-a\fR, \fB\-\-attribute\-walk\fR
|
||||
.RS 4
|
||||
Print all sysfs properties of the specified device that can be used in udev rules to match the specified device\&. It prints all devices along the chain, up to the root of sysfs that can be used in udev rules\&.
|
||||
.RE
|
||||
.PP
|
||||
\fB\-x\fR, \fB\-\-export\fR
|
||||
.RS 4
|
||||
Print output as key/value pairs\&. Values are enclosed in single quotes\&.
|
||||
.RE
|
||||
.PP
|
||||
\fB\-P\fR, \fB\-\-export\-prefix=\fR\fB\fINAME\fR\fR
|
||||
.RS 4
|
||||
Add a prefix to the key name of exported values\&.
|
||||
.RE
|
||||
.PP
|
||||
\fB\-d\fR, \fB\-\-device\-id\-of\-file=\fR\fB\fIFILE\fR\fR
|
||||
.RS 4
|
||||
Print major/minor numbers of the underlying device, where the file lives on\&.
|
||||
.RE
|
||||
.PP
|
||||
\fB\-e\fR, \fB\-\-export\-db\fR
|
||||
.RS 4
|
||||
Export the content of the udev database\&.
|
||||
.RE
|
||||
.PP
|
||||
\fB\-c\fR, \fB\-\-cleanup\-db\fR
|
||||
.RS 4
|
||||
Cleanup the udev database\&.
|
||||
.RE
|
||||
.PP
|
||||
\fB\-\-version\fR
|
||||
.RS 4
|
||||
Print version\&.
|
||||
.RE
|
||||
.PP
|
||||
\fB\-h\fR, \fB\-\-help\fR
|
||||
.RS 4
|
||||
Print help text\&.
|
||||
.RE
|
||||
.SS "udevadm trigger [options]"
|
||||
.PP
|
||||
Request device events from the kernel\&. Primarily used to replay events at system coldplug time\&.
|
||||
.PP
|
||||
\fB\-v\fR, \fB\-\-verbose\fR
|
||||
.RS 4
|
||||
Print the list of devices which will be triggered\&.
|
||||
.RE
|
||||
.PP
|
||||
\fB\-n\fR, \fB\-\-dry\-run\fR
|
||||
.RS 4
|
||||
Do not actually trigger the event\&.
|
||||
.RE
|
||||
.PP
|
||||
\fB\-t\fR, \fB\-\-type=\fR\fB\fITYPE\fR\fR
|
||||
.RS 4
|
||||
Trigger a specific type of devices\&. Valid types are:
|
||||
\fBdevices\fR,
|
||||
\fBsubsystems\fR\&. The default value is
|
||||
\fBdevices\fR\&.
|
||||
.RE
|
||||
.PP
|
||||
\fB\-c\fR, \fB\-\-action=\fR\fB\fIACTION\fR\fR
|
||||
.RS 4
|
||||
Type of event to be triggered\&. The default value is
|
||||
\fBchange\fR\&.
|
||||
.RE
|
||||
.PP
|
||||
\fB\-s\fR, \fB\-\-subsystem\-match=\fR\fB\fISUBSYSTEM\fR\fR
|
||||
.RS 4
|
||||
Trigger events for devices which belong to a matching subsystem\&. This option can be specified multiple times and supports shell style pattern matching\&.
|
||||
.RE
|
||||
.PP
|
||||
\fB\-S\fR, \fB\-\-subsystem\-nomatch=\fR\fB\fISUBSYSTEM\fR\fR
|
||||
.RS 4
|
||||
Do not trigger events for devices which belong to a matching subsystem\&. This option can be specified multiple times and supports shell style pattern matching\&.
|
||||
.RE
|
||||
.PP
|
||||
\fB\-a\fR, \fB\-\-attr\-match=\fR\fB\fIATTRIBUTE\fR\fR\fB=\fR\fB\fIVALUE\fR\fR
|
||||
.RS 4
|
||||
Trigger events for devices with a matching sysfs attribute\&. If a value is specified along with the attribute name, the content of the attribute is matched against the given value using shell style pattern matching\&. If no value is specified, the existence of the sysfs attribute is checked\&. This option can be specified multiple times\&.
|
||||
.RE
|
||||
.PP
|
||||
\fB\-A\fR, \fB\-\-attr\-nomatch=\fR\fB\fIATTRIBUTE\fR\fR\fB=\fR\fB\fIVALUE\fR\fR
|
||||
.RS 4
|
||||
Do not trigger events for devices with a matching sysfs attribute\&. If a value is specified along with the attribute name, the content of the attribute is matched against the given value using shell style pattern matching\&. If no value is specified, the existence of the sysfs attribute is checked\&. This option can be specified multiple times\&.
|
||||
.RE
|
||||
.PP
|
||||
\fB\-p\fR, \fB\-\-property\-match=\fR\fB\fIPROPERTY\fR\fR\fB=\fR\fB\fIVALUE\fR\fR
|
||||
.RS 4
|
||||
Trigger events for devices with a matching property value\&. This option can be specified multiple times and supports shell style pattern matching\&.
|
||||
.RE
|
||||
.PP
|
||||
\fB\-g\fR, \fB\-\-tag\-match=\fR\fB\fIPROPERTY\fR\fR
|
||||
.RS 4
|
||||
Trigger events for devices with a matching tag\&. This option can be specified multiple times\&.
|
||||
.RE
|
||||
.PP
|
||||
\fB\-y\fR, \fB\-\-sysname\-match=\fR\fB\fINAME\fR\fR
|
||||
.RS 4
|
||||
Trigger events for devices with a matching sys device name\&. This option can be specified multiple times and supports shell style pattern matching\&.
|
||||
.RE
|
||||
.PP
|
||||
\fB\-b\fR, \fB\-\-parent\-match=\fR\fB\fISYSPATH\fR\fR
|
||||
.RS 4
|
||||
Trigger events for all children of a given device\&.
|
||||
.RE
|
||||
.PP
|
||||
\fB\-h\fR, \fB\-\-help\fR
|
||||
.RS 4
|
||||
Print help text\&.
|
||||
.RE
|
||||
.SS "udevadm settle [options]"
|
||||
.PP
|
||||
Watches the udev event queue, and exits if all current events are handled\&.
|
||||
.PP
|
||||
\fB\-t\fR, \fB\-\-timeout=\fR\fB\fISECONDS\fR\fR
|
||||
.RS 4
|
||||
Maximum number of seconds to wait for the event queue to become empty\&. The default value is 120 seconds\&. A value of 0 will check if the queue is empty and always return immediately\&.
|
||||
.RE
|
||||
.PP
|
||||
\fB\-E\fR, \fB\-\-exit\-if\-exists=\fR\fB\fIFILE\fR\fR
|
||||
.RS 4
|
||||
Stop waiting if file exists\&.
|
||||
.RE
|
||||
.PP
|
||||
\fB\-h\fR, \fB\-\-help\fR
|
||||
.RS 4
|
||||
Print help text\&.
|
||||
.RE
|
||||
.SS "udevadm control \fIcommand\fR"
|
||||
.PP
|
||||
Modify the internal state of the running udev daemon\&.
|
||||
.PP
|
||||
\fB\-x\fR, \fB\-\-exit\fR
|
||||
.RS 4
|
||||
Signal and wait for udevd to exit\&.
|
||||
.RE
|
||||
.PP
|
||||
\fB\-l\fR, \fB\-\-log\-priority=\fR\fB\fIvalue\fR\fR
|
||||
.RS 4
|
||||
Set the internal log level of udevd\&. Valid values are the numerical syslog priorities or their textual representations:
|
||||
\fBerr\fR,
|
||||
\fBinfo\fR
|
||||
and
|
||||
\fBdebug\fR\&.
|
||||
.RE
|
||||
.PP
|
||||
\fB\-s\fR, \fB\-\-stop\-exec\-queue\fR
|
||||
.RS 4
|
||||
Signal udevd to stop executing new events\&. Incoming events will be queued\&.
|
||||
.RE
|
||||
.PP
|
||||
\fB\-S\fR, \fB\-\-start\-exec\-queue\fR
|
||||
.RS 4
|
||||
Signal udevd to enable the execution of events\&.
|
||||
.RE
|
||||
.PP
|
||||
\fB\-R\fR, \fB\-\-reload\fR
|
||||
.RS 4
|
||||
Signal udevd to reload the rules files and other databases like the kernel module index\&. Reloading rules and databases does not apply any changes to already existing devices; the new configuration will only be applied to new events\&.
|
||||
.RE
|
||||
.PP
|
||||
\fB\-p\fR, \fB\-\-property=\fR\fB\fIKEY\fR\fR\fB=\fR\fB\fIvalue\fR\fR
|
||||
.RS 4
|
||||
Set a global property for all events\&.
|
||||
.RE
|
||||
.PP
|
||||
\fB\-m\fR, \fB\-\-children\-max=\fR\fIvalue\fR
|
||||
.RS 4
|
||||
Set the maximum number of events, udevd will handle at the same time\&.
|
||||
.RE
|
||||
.PP
|
||||
\fB\-\-timeout=\fR\fIseconds\fR
|
||||
.RS 4
|
||||
The maximum number of seconds to wait for a reply from udevd\&.
|
||||
.RE
|
||||
.PP
|
||||
\fB\-h\fR, \fB\-\-help\fR
|
||||
.RS 4
|
||||
Print help text\&.
|
||||
.RE
|
||||
.SS "udevadm monitor [options]"
|
||||
.PP
|
||||
Listens to the kernel uevents and events sent out by a udev rule and prints the devpath of the event to the console\&. It can be used to analyze the event timing, by comparing the timestamps of the kernel uevent and the udev event\&.
|
||||
.PP
|
||||
\fB\-k\fR, \fB\-\-kernel\fR
|
||||
.RS 4
|
||||
Print the kernel uevents\&.
|
||||
.RE
|
||||
.PP
|
||||
\fB\-u\fR, \fB\-\-udev\fR
|
||||
.RS 4
|
||||
Print the udev event after the rule processing\&.
|
||||
.RE
|
||||
.PP
|
||||
\fB\-p\fR, \fB\-\-property\fR
|
||||
.RS 4
|
||||
Also print the properties of the event\&.
|
||||
.RE
|
||||
.PP
|
||||
\fB\-s\fR, \fB\-\-subsystem\-match=\fR\fB\fIstring[/string]\fR\fR
|
||||
.RS 4
|
||||
Filter events by subsystem[/devtype]\&. Only udev events with a matching subsystem value will pass\&.
|
||||
.RE
|
||||
.PP
|
||||
\fB\-t\fR, \fB\-\-tag\-match=\fR\fB\fIstring\fR\fR
|
||||
.RS 4
|
||||
Filter events by property\&. Only udev events with a given tag attached will pass\&.
|
||||
.RE
|
||||
.PP
|
||||
\fB\-h\fR, \fB\-\-help\fR
|
||||
.RS 4
|
||||
Print help text\&.
|
||||
.RE
|
||||
.SS "udevadm hwdb [options]"
|
||||
.PP
|
||||
Maintain the hardware database index in
|
||||
/etc/udev/hwdb\&.bin\&.
|
||||
.PP
|
||||
\fB\-u\fR, \fB\-\-update\fR
|
||||
.RS 4
|
||||
Compile the hardware database information located in /usr/lib/udev/hwdb\&.d/, /etc/udev/hwdb\&.d/ and store it in
|
||||
/etc/udev/hwdb\&.bin\&. This should be done after any update to the source files; it will not be called automatically\&. The running udev daemon will detect a new database on its own and does not need to be notified about it\&.
|
||||
.RE
|
||||
.PP
|
||||
\fB\-t\fR, \fB\-\-test=\fR\fB\fIstring\fR\fR
|
||||
.RS 4
|
||||
Query the database with a modalias string, and print the retrieved properties\&.
|
||||
.RE
|
||||
.PP
|
||||
\fB\-r\fR, \fB\-\-root=\fR\fB\fIstring\fR\fR
|
||||
.RS 4
|
||||
Alternative root path in the file system for reading and writing files\&.
|
||||
.RE
|
||||
.PP
|
||||
\fB\-h\fR, \fB\-\-help\fR
|
||||
.RS 4
|
||||
Print help text\&.
|
||||
.RE
|
||||
.SS "udevadm test [options] \fIdevpath\fR"
|
||||
.PP
|
||||
Simulate a udev event run for the given device, and print debug output\&.
|
||||
.PP
|
||||
\fB\-a\fR, \fB\-\-action=\fR\fB\fIstring\fR\fR
|
||||
.RS 4
|
||||
The action string\&.
|
||||
.RE
|
||||
.PP
|
||||
\fB\-N\fR, \fB\-\-resolve\-names=\fR\fB\fBearly\fR\fR\fB|\fR\fB\fBlate\fR\fR\fB|\fR\fB\fBnever\fR\fR
|
||||
.RS 4
|
||||
Specify when udevadm should resolve names of users and groups\&. When set to
|
||||
\fBearly\fR
|
||||
(the default), names will be resolved when the rules are parsed\&. When set to
|
||||
\fBlate\fR, names will be resolved for every event\&. When set to
|
||||
\fBnever\fR, names will never be resolved and all devices will be owned by root\&.
|
||||
.RE
|
||||
.PP
|
||||
\fB\-h\fR, \fB\-\-help\fR
|
||||
.RS 4
|
||||
Print help text\&.
|
||||
.RE
|
||||
.SS "udevadm test\-builtin [options] \fICOMMAND\fR \fIDEVPATH\fR"
|
||||
.PP
|
||||
Run a built\-in command
|
||||
\fICOMMAND\fR
|
||||
for device
|
||||
\fIDEVPATH\fR, and print debug output\&.
|
||||
.PP
|
||||
\fB\-h\fR, \fB\-\-help\fR
|
||||
.RS 4
|
||||
Print help text\&.
|
||||
.RE
|
||||
.SH "SEE ALSO"
|
||||
.PP
|
||||
\fBudev\fR(7),
|
||||
\fBudevd.service\fR(8)
|
||||
|
|
@ -0,0 +1,124 @@
|
|||
'\" t
|
||||
.\" Title: udevd
|
||||
.\" Author: Kay Sievers <kay@vrfy.org>
|
||||
.\" Generator: DocBook XSL Stylesheets v1.78.0 <http://docbook.sf.net/>
|
||||
.\" Date: 10/31/2014
|
||||
.\" Manual: udevd
|
||||
.\" Source: udev
|
||||
.\" Language: English
|
||||
.\"
|
||||
.TH "UDEVD" "8" "" "udev" "udevd"
|
||||
.\" -----------------------------------------------------------------
|
||||
.\" * Define some portability stuff
|
||||
.\" -----------------------------------------------------------------
|
||||
.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
||||
.\" http://bugs.debian.org/507673
|
||||
.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html
|
||||
.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
||||
.ie \n(.g .ds Aq \(aq
|
||||
.el .ds Aq '
|
||||
.\" -----------------------------------------------------------------
|
||||
.\" * set default formatting
|
||||
.\" -----------------------------------------------------------------
|
||||
.\" disable hyphenation
|
||||
.nh
|
||||
.\" disable justification (adjust text to left margin only)
|
||||
.ad l
|
||||
.\" -----------------------------------------------------------------
|
||||
.\" * MAIN CONTENT STARTS HERE *
|
||||
.\" -----------------------------------------------------------------
|
||||
.SH "NAME"
|
||||
udevd \- Device event managing daemon
|
||||
.SH "SYNOPSIS"
|
||||
.PP
|
||||
udevd
|
||||
.HP \w'\fB/sbin/udevd\fR\ 'u
|
||||
\fB/sbin/udevd\fR [\fB\-\-daemon\fR] [\fB\-\-debug\fR] [\fB\-\-children\-max=\fR] [\fB\-\-exec\-delay=\fR] [\fB\-\-resolve\-names=early|late|never\fR] [\fB\-\-version\fR] [\fB\-\-help\fR]
|
||||
.SH "DESCRIPTION"
|
||||
.PP
|
||||
\fBudevd\fR
|
||||
listens to kernel uevents\&. For every event, udevd executes matching instructions specified in udev rules\&. See
|
||||
\fBudev\fR(7)\&.
|
||||
.PP
|
||||
The behavior of the running daemon can be changed dynamically with
|
||||
\fBudevadm control\fR, or configured using
|
||||
\fBudev.conf\fR(5)\&.
|
||||
.SH "OPTIONS"
|
||||
.PP
|
||||
\fB\-\-daemon\fR
|
||||
.RS 4
|
||||
Detach and run in the background\&.
|
||||
.RE
|
||||
.PP
|
||||
\fB\-\-debug\fR
|
||||
.RS 4
|
||||
Print debug messages to stderr\&.
|
||||
.RE
|
||||
.PP
|
||||
\fB\-\-children\-max=\fR
|
||||
.RS 4
|
||||
Limit the number of events executed in parallel\&.
|
||||
.RE
|
||||
.PP
|
||||
\fB\-\-exec\-delay=\fR
|
||||
.RS 4
|
||||
Delay the execution of RUN instruction by the given number of seconds\&. This option might be useful when debugging system crashes during coldplug caused by loading non\-working kernel modules\&.
|
||||
.RE
|
||||
.PP
|
||||
\fB\-\-resolve\-names=\fR
|
||||
.RS 4
|
||||
Specify when udevd should resolve names of users and groups\&. When set to
|
||||
\fBearly\fR
|
||||
(the default) names will be resolved when the rules are parsed\&. When set to
|
||||
\fBlate\fR
|
||||
names will be resolved for every event\&. When set to
|
||||
\fBnever\fR
|
||||
names will never be resolved and all devices will be owned by root\&.
|
||||
.RE
|
||||
.PP
|
||||
\fB\-\-version\fR
|
||||
.RS 4
|
||||
Print version number\&.
|
||||
.RE
|
||||
.PP
|
||||
\fB\-\-help\fR
|
||||
.RS 4
|
||||
Print help text\&.
|
||||
.RE
|
||||
.SH "ENVIRONMENT"
|
||||
.PP
|
||||
\fI$UDEV_LOG=\fR
|
||||
.RS 4
|
||||
Set the logging priority\&.
|
||||
.RE
|
||||
.SH "KERNEL COMMAND LINE"
|
||||
.PP
|
||||
Parameters starting with "rd\&." will be read when
|
||||
\fBudevd\fR
|
||||
is used in an initrd\&.
|
||||
.PP
|
||||
\fIudev\&.log\-priority=\fR, \fIrd\&.udev\&.log\-priority=\fR
|
||||
.RS 4
|
||||
Set the logging priority\&.
|
||||
.RE
|
||||
.PP
|
||||
\fIudev\&.children\-max=\fR, \fIrd\&.udev\&.children\-max=\fR
|
||||
.RS 4
|
||||
Limit the number of events executed in parallel\&.
|
||||
.RE
|
||||
.PP
|
||||
\fIudev\&.exec\-delay=\fR, \fIrd\&.udev\&.exec\-delay=\fR
|
||||
.RS 4
|
||||
Delay the execution of RUN instruction by the given number of seconds\&. This option might be useful when debugging system crashes during coldplug caused by loading non\-working kernel modules\&.
|
||||
.RE
|
||||
.PP
|
||||
\fInet\&.ifnames=\fR
|
||||
.RS 4
|
||||
Network interfaces are renamed to give them predictable names when possible\&. It is enabled by default, specifying 0 disables it\&.
|
||||
.RE
|
||||
.SH "SEE ALSO"
|
||||
.PP
|
||||
|
||||
\fBudev.conf\fR(5),
|
||||
\fBudev\fR(7),
|
||||
\fBudevadm\fR(8)
|
||||
Loading…
Reference in New Issue