#!/bin/sh # # input.rc This loads handlers for those input devices # that have drivers compiled in kernel # Currently stopping is not supported # # Best invoked via /etc/init.d/hotplug or equivalent, with # writable /tmp, /usr mounted, and syslogging active. # PATH=/sbin:/bin:/usr/sbin:/usr/bin PROCDIR=/proc/bus/input # source function library if [ -f /etc/init.d/functions ]; then . /etc/init.d/functions elif [ -f /etc/rc.d/init.d/functions ]; then . /etc/rc.d/init.d/functions fi if [ -f /etc/hotplug/hotplug.functions ]; then . /etc/hotplug/hotplug.functions fi input_reset_state () { PRODUCT= NAME= PHYS= EV= KEY= REL= ABS= MSC= LED= SND= FF= } # # "COLD PLUG" ... load input handlers for compile-in input drivers loaded # before the OS could really handle hotplug, perhaps because /sbin or # $HOTPLUG_DIR wasn't available or /tmp wasn't writable. When/if the # /sbin/hotplug program is invoked then, hotplug event notifications # get dropped. To make up for such "cold boot" errors, we synthesize # all the hotplug events we expect to have seen already. They can be # out of order, and some might be duplicates. # input_boot_events () { # do not even try if /proc/bus/input is missing [ -d $PROCDIR ] || return if [ ! -r $PROCDIR/devices ]; then echo $"** can't synthesize input events - $PROCDIR/devices missing" return fi ACTION=add export ACTION export PRODUCT NAME PHYS EV KEY REL ABS MSC LED SND FF input_reset_state local line # # the following reads from /proc/bus/input/devices. It is inherently # racy (esp. as this file may be changed by input.agent invocation) # but so far input devices do not appear in sysfs # while read line; do case "$line" in I:* ) # product ID eval "${line#I: }" PRODUCT=$Bus/$Vendor/$Product/$Version ;; N:* ) # name eval "${line#N: }" NAME="$Name" ;; P:* ) # Physical eval "${line#P: }" PHYS=$Phys ;; B:* ) # Controls supported line="${line#B: }" eval "${line%%=*}=\"${line#*=}\"" ;; "" ) # End of block debug_mesg "Invoking input.agent" debug_mesg "PRODUCT=$PRODUCT" debug_mesg "NAME=$NAME" debug_mesg "PHYS=$PHYS" debug_mesg "EV=$EV" debug_mesg "KEY=$KEY" debug_mesg "REL=$REL" debug_mesg "ABS=$ABS" debug_mesg "MSC=$MSC" debug_mesg "LED=$LED" debug_mesg "SND=$SND" debug_mesg "FF=$FF" /etc/hotplug/input.agent < /dev/null input_reset_state ;; esac done < $PROCDIR/devices } # See how we were called. case "$1" in start) input_boot_events ;; stop) : not supported currently ;; status) echo $"INPUT status for kernel: " `uname -srm` echo '' echo "INPUT devices:" if [ -r $PROCDIR/devices ]; then grep "^[INHP]:" $PROCDIR/devices else echo "$PROCDIR/devices not available" fi echo '' echo "INPUT handlers:" if [ -r $PROCDIR/handlers ]; then cat $PROCDIR/handlers else echo "$PROCDIR/handlers not available" fi echo '' ;; restart) # always invoke by absolute path, else PATH=$PATH: $0 stop && $0 start ;; *) echo $"Usage: $0 {start|stop|status|restart}" exit 1 esac
