move default rules from /etc/udev/rules.d/ to /lib/udev/rules.d/

[elogind.git] / udev.7

diff --git a/udev.7 b/udev.7
index 096bf385548fcb7922e4fe7a536ccabd9b2bb70f..c4ca28603d4b7c09d558f7b9d9ed8b230575403c 100644 (file)
--- a/udev.7
+++ b/udev.7
@@ -25,8 +25,10 @@ and receives uevents directly from the kernel if a device is added or removed fr
 If udev receives a device event, it matches its configured rules against the available device attributes provided in sysfs to identify the device\. Rules that match may provide additional device information or specify a device node name and multiple symlink names and instruct udev to run additional programs as part of the device event handling\.
 .SH "CONFIGURATION"
 .PP
-All udev configuration files are placed in
-\fI/etc/udev/*\fR\. Every file consists of a set of lines of text\. All empty lines or lines beginning with \'#\' will be ignored\.
+udev configuration files are placed in
+\fI/etc/udev/\fR
+and
+\fI/lib/udev/\fR\. All empty lines, or lines beginning with \'#\' will be ignored\.
 .SS "Configuration file"
 .PP
 udev expects its main configuration file at
@@ -38,13 +40,6 @@ Specifies where to place the device nodes in the filesystem\. The default value
 \fI/dev\fR\.
 .RE
 .PP
-\fBudev_rules\fR
-.RS 4
-The name of the udev rules file or directory to look for files with the suffix
-\fI\.rules\fR\. Multiple rule files are read in lexical order\. The default value is
-\fI/etc/udev/rules\.d\fR\.
-.RE
-.PP
 \fBudev_log\fR
 .RS 4
 The logging priority\. Valid values are the numerical syslog priorities or their textual representations:
@@ -55,9 +50,11 @@ and
 .RE
 .SS "Rules files"
 .PP
-The udev rules are read from the files located in the
-\fI/etc/udev/rules\.d\fR
-directory or at the location specified value in the configuration file\. Every line in the rules file contains at least one key value pair\. There are two kind of keys, match and assignment keys\. If all match keys are matching against its value, the rule gets applied and the assign keys get the specified value assigned\.
+The udev rules are read from the files located in the default rules directory
+\fI/lib/udev/rules\.d/\fR, the custom rules directory
+\fI/etc/udev/rules\.d/\fR
+and the temporary rules directory
+\fI/dev/\.udev/rules\.d/\fR\. All rule files are sorted and processed in lexical order, regardless in which of these directories they live\. Every line in the rules file contains at least one key value pair\. There are two kind of keys, match and assignment keys\. If all match keys are matching against its value, the rule gets applied and the assign keys get the specified value assigned\.
 .PP
 A matching rule may specify the name of the device node, add a symlink pointing to the node, or run a specified program as part of the event handling\. If no matching rule is found, the default device node name is used\.
 .PP
@@ -105,6 +102,11 @@ Match the devpath of the event device\.
 Match the name of the event device\.
 .RE
 .PP
+\fBNAME\fR
+.RS 4
+Match the name of the node or network interface\. It can be used once the NAME key has been set in one of the preceding rules\.
+.RE
+.PP
 \fBSUBSYSTEM\fR
 .RS 4
 Match the subsystem of the event device\.
@@ -257,9 +259,9 @@ and
 based on the executable bit of the file permissions\.
 .RE
 .PP
-\fBWAIT_FOR_SYSFS\fR
+\fBWAIT_FOR\fR
 .RS 4
-Wait for the specified sysfs file of the device to be created\. Can be used to fight against kernel sysfs timing issues\.
+Wait for a file to become available\.
 .RE
 .PP
 \fBOPTIONS\fR
@@ -283,7 +285,7 @@ Do not remove the device node when the device goes away\. This may be useful as
 .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\.
+Specify the priority of the created symlinks\. Devices with higher priorities overwrite existing symlinks of other devices\. The default is 0\.
 .RE
 .PP
 \fBall_partitions\fR
@@ -307,7 +309,8 @@ The
 \fBSYMLINK\fR,
 \fBPROGRAM\fR,
 \fBOWNER\fR,
-\fBGROUP\fR
+\fBGROUP\fR,
+\fBMODE\fR
 and
 \fBRUN\fR
 fields support simple printf\-like string substitutions\. The
@@ -351,7 +354,7 @@ and
 .PP
 \fB$attr{\fR\fB\fIfile\fR\fR\fB}\fR, \fB%s{\fR\fB\fIfile\fR\fR\fB}\fR
 .RS 4
-The value of a sysfs attribute found at the device, where all keys of the rule have matched\. If the matching device does not have such an attribute, all devices along the chain of parents are searched for a matching attribute\. If the attribute is a symlink, the last element of the symlink target is returned as the value\.
+The value of a sysfs attribute found at the device, where all keys of the rule have matched\. If the matching device does not have such an attribute, follow the chain of parent devices and use the value of the first attribute that matches\. If the attribute is a symlink, the last element of the symlink target is returned as the value\.
 .RE
 .PP
 \fB$env{\fR\fB\fIkey\fR\fR\fB}\fR, \fB%E{\fR\fB\fIkey\fR\fR\fB}\fR