Copyright (c) 2004 Alexander Yurchenko <grange@openbsd.org>
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.Dd $Mdocdate: January 21 2014 $ .Dt HOTPLUGD 8 .Os .Sh NAME .Nm hotplugd .Nd devices hot plugging monitor daemon .Sh SYNOPSIS .Nm hotplugd .Op Fl d Ar device .Sh DESCRIPTION The .Nm daemon monitors the .Xr hotplug 4 pseudo-device, acting on signaled events by executing the scripts in the
a /etc/hotplug directory. By default it uses the
a /dev/hotplug device for reading events from, but an alternative device can be specified with the .Fl d option.
p Actions can be configured either for device attachment or detachment. On device attachment the
a attach script is executed if it exists. On device detachment the
a detach script is executed if it exists. In both cases two parameters are passed to the scripts: the class and name of the attached or detached device. The device class corresponds to the classes described in the n sys/device.h header file and can be one of the following:
p l -tag -width Ds -offset indent -compact t 0 generic, no special info t 1 CPU (carries resource utilization) t 2 disk drive t 3 network interface t 4 tape device t 5 serial line interface .El
p Not all classes are really usable. For example, it's unlikely that a CPU will be hotplugged.
p The device name is the usual name, as listed in .Xr MAKEDEV 8 , and the unit number, e.g.\&
a sd1 . .Sh FILES l -tag -width "/dev/hotplug/attach" -compact t Pa /dev/hotplug Pseudo-device file. t Pa /etc/hotplug Directory where the scripts to execute are located. t Pa /etc/hotplug/attach Script to execute on device attachment. t Pa /etc/hotplug/detach Script to execute on device detachment. .El .Sh EXAMPLES Sample
a attach script: d -literal -offset indent #!/bin/sh DEVCLASS=$1 DEVNAME=$2 case $DEVCLASS in 2) # disk devices disklabel=`/sbin/disklabel $DEVNAME 2\*(Gt&1 | \e sed -n '/^label: /s/^label: //p'` case $disklabel in Sony*DSC*) # Sony DSC camera mount -o nodev,nosuid /dev/"$DEVNAME"i /mnt/camera ;; esac ;; 3) # network devices; requires hostname.$DEVNAME sh /etc/netstart $DEVNAME ;; esac .Ed .Sh SEE ALSO .Xr hotplug 4 .Sh HISTORY The .Nm program first appeared in .Ox 3.6 . .Sh AUTHORS The .Nm program was written by .An Alexander Yurchenko Aq Mt grange@openbsd.org .