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Diffstat (limited to 'udev-config/doc/95-udev-late.txt')
| -rw-r--r-- | udev-config/doc/95-udev-late.txt | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/udev-config/doc/95-udev-late.txt b/udev-config/doc/95-udev-late.txt new file mode 100644 index 000000000..00ea17c61 --- /dev/null +++ b/udev-config/doc/95-udev-late.txt @@ -0,0 +1,18 @@ +Purpose of rules file: + +Sends all uevents to a Unix-domain socket, where they can be monitored by other +programs. + + +Description of rules: + +There is only one rule, which matches all uevents. It uses Udev's RUN key to +specify a socket to send each uevent to. Normally RUN is used to start up a +process, but if the pathname starts with "socket:", Udev instead interprets +the rest of the name as a Unix-domain socket to send the uevent to. In this +case, we send send the uevent to the socket named /org/kernel/udev/monitor, +which is created by the udevmonitor program. Udevmonitor is used to watch +uevents as they come to Udev. Its only purpose is for debugging, but sending +the uevent to a socket that doesn't exist is a very cheap operation, so we +enable this rule for all uevents. + |