touchscreen problem in menlow-lpia-ubuntu-hardy-jax10-snapshot1

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I've built a LiveRW usb img of menlow-lpia-ubuntu-hardy-jax10-snapshot1 platform for a "aigo P8860" (the same as jax10), and after booting up, the touchscreen didn't work.

I copied the idctouch_drv.so from the original midinux(Linux 2.6.22) into the LiveRW system, and I found that when I touched the screen the mouse arrow jumped randomly, and there were error messages in "dmesg" :
  [ 151.705289] psmouse.c: Mouse at isa0060/serio1/input0 lost synchronization, throwing 2 bytes away.
  [ 152.433010] psmouse.c: resync failed, issuing reconnect request

after I modprobe evbug, error messages will end with:

  [ 245.012480] evbug.c: Event. Dev: isa0060/serio1/input0, Type: 0, Code: 0, Value: 0
  [ 245.017697] evbug.c: Event. Dev: isa0060/serio1/input0, Type: 1, Code: 272, Value: 0
  [ 245.017717] evbug.c: Event. Dev: isa0060/serio1/input0, Type: 1, Code: 273, Value: 0
  [ 245.017733] evbug.c: Event. Dev: isa0060/serio1/input0, Type: 2, Code: 0, Value: -251
  [ 245.017745] evbug.c: Event. Dev: isa0060/serio1/input0, Type: 2, Code: 1, Value: -27
  [ 245.017770] evbug.c: Event. Dev: isa0060/serio1/input0, Type: 0, Code: 0, Value: 0
  [ 246.984989] psmouse.c: Mouse at isa0060/serio1/input0 lost synchronization, throwing 1 bytes away.
  [ 247.931807] psmouse.c: resync failed, issuing reconnect request

that means there are events from the touch screen but with wrong messages.

I found that in the original midnux (and the ume 7.10), there is no ps/2 mouse device in /proc/bus/input/devices. and in /sys/bus/serio/devices/serio1/ there is a "misc:serio_raw0" not "input" (in the hardy).