X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=udev.xml;h=71832a2fe5977115e60497874c1a502bea12aca1;hp=68edb8fb99000826084c8f74392c401bd1a5cd09;hb=2bb4dd9766479348a2829ceb8ef583a788bfd840;hpb=e7c39acbe724f0bc067dbab7eb3f8cdc073f3c67 diff --git a/udev.xml b/udev.xml index 68edb8fb9..71832a2fe 100644 --- a/udev.xml +++ b/udev.xml @@ -30,11 +30,11 @@ Usually udev runs as udevd 8 and receives uevents directly from the - kernel if a device is added or removed form the system. + kernel if a device is added or removed from the system. 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 + 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. @@ -90,7 +90,7 @@ 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. - A rule may consists of a list of one or more key value pairs separated by + A rule may consist of a list of one or more key value pairs separated by a comma. Each key has a distinct operation, depending on the used operator. Valid operators are: @@ -224,12 +224,20 @@ + + + + Test the existence of a file. An octal mode mask can be specified + if needed. + + + Execute external program. The key is true, if the program returns - without exit code zero. The whole event environment is available to the - executed program. The program's output printed to stdout is available for + with exit code zero. The whole event environment is available to the + executed program. The program's output printed to stdout, is available in the RESULT key. @@ -374,7 +382,7 @@ If no option is given, udev will choose between - and based on the executable bit of of the file + and based on the executable bit of the file permissions. @@ -390,14 +398,52 @@ - stops further rules application. No later rules - will have any effect. - will ignore this event completely. - will ignore any later remove event for this - device. This may be useful as a workaround for broken device drivers. - will create the device nodes for all available - partitions of a block device. This may be useful for removable media devices where - media changes are not detected. + Rule and device options: + + + + + Stops further rules application. No later rules will have + any effect. + + + + + + Ignore this event completely. + + + + + + Do not remove the device node when the device goes away. This may be + useful as a workaround for broken device drivers. + + + + + + Specify the priority of the created symlinks. Devices with higher + priorities overwrite existing symlinks of other devices. + + + + + + Create the device nodes for all available partitions of a block device. + This may be useful for removable media devices where media changes are not + detected. + + + + + + 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. + + + @@ -441,6 +487,15 @@ + + + + The driver name of the device matched while searching the devpath upwards for + , , and . + + + + , @@ -468,7 +523,7 @@ - + , The kernel minor number for the device. @@ -492,6 +547,14 @@ + + + + The name of the device node. The value is only set if an earlier + rule assigned a value, or during a remove events. + + + , @@ -499,6 +562,13 @@ + + , + + The sysfs mount point. + + + , @@ -539,10 +609,7 @@ udevd8 , - udevinfo8 - , - - udevmonitor8 + udevadm8