Hey, Somewhere I picked up a script that disables the trackpad when a mouse is plugged in by unloading the module. That isn't very nice because X gets very confused: after the event device is gone, the new one after unplugging the mouse isn't driven by the synaptics driver so you don't have all the nice features any more!
I just rewrote the script completely:
* simply power down the touchpad now
* use sysfs, no longer rely on device naming
It might depend on CONFIG_USB_SUSPEND, I don't know. I have it, and it
works.
Here it goes:
#! /bin/bash
# seems to need bash for whatever reason... dash doesn't work
#
# This is a little hotplug script that disables the touchpad when
# you plug in a usb mouse and re-enables it when the mouse is unplugged.
#
# Simply put this into /etc/hotplug/usb/usbhid and thats it...
case $ACTION in
add|remove)
state=/sys/bus/usb/drivers/appletouch/*/power/state
if ls /sys/bus/usb/drivers/usbhid/*/input:mouse* >/dev/null 2>&1
then
echo -n 3 > $state
else
echo -n 0 > $state
fi
;;
esac
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