[PATCH] fix appletouch geyser 1 breakage

[Dmitry Torokhov]

Hi Johannes,

On 10/24/07, Johannes Berg <johannes at sipsolutions.net> wrote:
> The patch 46249ea60fbb61a72ee6929b831b1f3e6865f024 was obviously done
> without testing on a Geyser 1,

My fault, sorry. However Anton's device has product ID of 90x30B which
is Geyser 1 as far as I understand... But yes, we should not expect
other geysers respond to Geyser 3-specific commands.

>  and I'm a very annoyed that it was
> applied. It causes appletouch to continuously printk:
>
> drivers/input/mouse/appletouch.c: Could not do mode read request from device (Geyser 3 mode)
>
> because the Geyser 1 doesn't respond to that. The patch description also
> states:
>
> > if we see 10 empty packets the touchpad needs to be reset; good
> > touchpads should not send empty packets anyway.
>
> which is *TOTALLY* bogus since Geyser 1 touchpads have no notion of
> empty packets, the simply continuously send measurements. One look at
> the specification would have confirmed that.
>

Is there a way to "plug" these Geysers? Waking up the kernel
continuously is not nice.

-- 
Dmitry