Re: Synaptics driver on HP6100 and 2.5.73

From: Peter Osterlund (petero2@telia.com)
Date: Sat Jul 05 2003 - 17:41:05 EST

Peter Osterlund <petero2@telia.com> writes:

> Mike Keehan <mike_keehan@yahoo.com> writes:
>
> > The touchpad is recognised OK when the kernel boots,
> > and my usb
> > connected mouse works fine. But I get the following
> > message in
> > the syslog when I try to use the mousepad or any of
> > the buttons :-
> >
> > ... kernel: Synaptics driver lost sync at 1st byte
> >
> > Relevant /var/log/dmesg content:-
> >
> > drivers/usb/core/usb.c: registered new driver hid
> > drivers/usb/input/hid-core.c: v2.0:USB HID core
> > driver
> > mice: PS/2 mouse device common for all mice
> > synaptics reset failed
> > synaptics reset failed
> > synaptics reset failed
>
> The logs from your other mail show that the touchpad is still in
> relative mode (using 3 byte packets) instead of absolute mode (using 6
> byte packets.) I don't know why this happens, but ...

OK, the problem is that the touchpad needs a lot of time to wake up
after a reset command. As we found out in private conversation, 3
seconds is barely enough, so I suggest the following patch to fix the
problem:

--- linux/drivers/input/mouse.resume/psmouse-base.c Sat Jul 5 23:39:14 2003
+++ linux/drivers/input/mouse/psmouse-base.c Sun Jul 6 00:23:17 2003
@@ -201,7 +201,7 @@
         psmouse->cmdcnt = receive;
 
         if (command == PSMOUSE_CMD_RESET_BAT)
- timeout = 2000000; /* 2 sec */
+ timeout = 4000000; /* 4 sec */
 
         if (command & 0xff)
                 if (psmouse_sendbyte(psmouse, command & 0xff)) 

-- 
Peter Osterlund - petero2@telia.com
http://w1.894.telia.com/~u89404340
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This archive was generated by hypermail 2b29 : Mon Jul 07 2003 - 22:00:25 EST