X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=blobdiff_plain;f=udevd.8;h=30adb94f2b358fee397cd428baab9c7b34274437;hb=bef370d6ebd6707cc2ef183c2dc83f4a62d8111b;hp=401e9b2ade280b891acfab566e82e926b17efae5;hpb=7dae391fd66d200febfd078c055fae3dfb5cb7c7;p=elogind.git

diff --git a/udevd.8 b/udevd.8
index 401e9b2ad..30adb94f2 100644
--- a/udevd.8
+++ b/udevd.8
@@ -3,6 +3,21 @@
 udevd \- udev event serializer daemon
 .br
 udevsend \- sends the event to udevd
+.SH SYNOPSIS
+.BI udevsend " hotplug-subsystem"
+.sp
+The environment must provide the following variables:
+.TP
+.B ACTION
+.IR add " or " remove
+signifies the connection or disconnection of a device.
+.TP
+.B DEVPATH
+The sysfs devpath of the device without the mountpoint but a leading slash.
+.TP
+.B SEQNUM
+The sequence number of the event provided by the kernel.
+If unset, the event bypasses the queue and will be executed immediately.
 .SH "DESCRIPTION"
 .B udevd
 allows the serialization of
@@ -20,16 +35,22 @@ For each event a
 .BR udev (8)
 instance is executed in the background. All further events for the same device
 are delayed until the execution is finished. This way it will never run more
-than one instance for a single device.
+than one instance for a single device at the same time.
 .br
 .B udevd
 receives the events from
 .B udevsend
 which is called by
-.BR hotplug (8)
-
+.BR hotplug (8).
+If
+.B udevd
+isn't already running,
+.B udevsend
+will start it.
 .SH "SEE ALSO"
-.BR udev (8)
+.BR udev (8),
+.BR udevinfo (8),
+.BR hotplug (8)
 .SH AUTHORS
 .B udevd
 was developed primarily by Kay Sievers <kay.sievers@vrfy.org>, with much help