Re: 2.6.11-rc4: Alps touchpad too slow

Vojtech Pavlik
2005-03-22T07:41:27Z

On Mon, Mar 21, 2005 at 10:25:14PM -0800, Andrew Morton wrote:

> > With cvsbk rev 423b66b6oJOGN68OhmSrBFxxLOtIEA (rsynced Monday, it claims
> > to be "2.6.12-rc1"), the situation is much improved. The AlpsPS/2
> > driver recognizes the trackpad, tracking speed is back to normal, and
> > tapping is turned on by default. (Drat, now I need to figure out how to
> > turn that off again.)

Setting "MaxTapTime" in XF86Config if you're using the Synaptics X
driver, or mousedev.maxtaptime=0 if you are using /dev/input.mice, to 0
should work.

> Wonderful, thanks.
>
> > The kernel output is a bit odd, though:
> >
> > [ 1200.254707] Adding 987988k swap on /dev/hda3. Priority:-1 extents:1
> > [ 1200.330453] EXT3 FS on hda2, internal journal
> > [ 1203.504154] SCSI subsystem initialized
> > [ 1204.039053] Enabling hardware tapping
> > [ 1204.099034] ieee1394: Initialized config rom entry `ip1394'
> > [ 1204.266077] input: PS/2 Mouse on isa0060/serio1
> > [ 1204.400583] input: AlpsPS/2 ALPS GlidePoint on isa0060/serio1
> > [ 1204.779799] sbp2: $Rev: 1219 $ Ben Collins <bcollins@debian.org>
> > [ 1206.183165] kjournald starting. Commit interval 5 seconds
> >
> > Note how the "Enabling hardware tapping" message is several lines
> > earlier than it seems it should be... I don't think I'm supposed to be
> > tapping on my SCSI hardware.
> >
> > ... ah, I think I'm missing the "ALPS GlidePoint detected" message which
> > I used to get. Without it, the "Enabling hardware tapping" message is a
> > bit opaque.
>
> Yes, alps_init() had a printk removed and now the output looks funny.

I think just removing the message is better.

> diff -puN drivers/input/mouse/alps.c~alps-printk-tidy drivers/input/mouse/alps.c
> --- 25/drivers/input/mouse/alps.c~alps-printk-tidy 2005-03-21 22:23:46.000000000 -0800
> +++ 25-akpm/drivers/input/mouse/alps.c 2005-03-21 22:23:53.000000000 -0800
> @@ -395,7 +395,7 @@ int alps_init(struct psmouse *psmouse)
> }
>
> if (param[0] & 0x04) {
> - printk(KERN_INFO " Enabling hardware tapping\n");
> + printk(KERN_INFO "alps.c: Enabling hardware tapping\n");
> if (alps_tap_mode(psmouse, 1))
> printk(KERN_WARNING "alps.c: Failed to enable hardware tapping\n");
> }
> _

--
Vojtech Pavlik
SuSE Labs, SuSE CR