X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=udev.xml;h=e4329653170e1921482e9510cb684f9cd7755dd5;hp=bd099479f24a7f2eabdcf61a8052462a3ebcb9db;hb=8b5238670d2e741bc71ae3e79b499682965dc2fd;hpb=684e935fafdf75c57f1cfd6b91666353270bce8d diff --git a/udev.xml b/udev.xml index bd099479f..e43296531 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: @@ -224,6 +224,14 @@ + + + + Test the existence of a file. An octal mode mask can be specified + if needed. + + + @@ -325,6 +333,12 @@ event process for a long period of time may block all further events for this or a dependent device. Long running tasks need to be immediately detached from the event process itself. + If the specifiefd string starts with + , all current event + values will be passed to the specified socket, as a message in the same + format the kernel sends an uevent. If the first character of the specified path + is an @ character, an abstract namespace socket is used, instead of an existing + socket file. @@ -374,7 +388,7 @@ 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 +404,52 @@ - 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 +493,15 @@ + + + + The driver name of the device matched while searching the devpath upwards for + , , and . + + + + , @@ -468,7 +529,7 @@ - + , The kernel minor number for the device. @@ -492,6 +553,14 @@ + + + + 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 +568,13 @@ + + , + + The sysfs mount point. + + + , @@ -530,7 +606,7 @@ AUTHOR Written by Greg Kroah-Hartman greg@kroah.com and Kay Sievers kay.sievers@vrfy.org. With much help from - Dan Stekloff dsteklof@us.ibm.com and many others. + Dan Stekloff and many others. @@ -539,10 +615,7 @@ udevd8 , - udevinfo8 - , - - udevmonitor8 + udevadm8