* Re: FocalTech touchpad issues on K750
[not found] <544B93A6.6010801@gmail.com>
@ 2014-10-25 17:56 ` Hans de Goede
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From: Hans de Goede @ 2014-10-25 17:56 UTC (permalink / raw)
To: Mathias Gottschlag; +Cc: Dmitry Torokhov, linux-usb
Hi,
On 10/25/2014 02:12 PM, Mathias Gottschlag wrote:
> Hi,
>
> I've had Nikola Nikolov test my touchpad code for me and got the report
> that the driver worked, but only when he passed i8042.noloop=1 and
> psmouse.proto=bare to the kernel. Now I have been pretty careful to keep
> your previous patch in place when writing my code. So, I'd like to
> further debug this issue, but I don't really understand the matter.
>
> Especially, what is that AUX LOOP command that is disabled by noloop=1?
> Your patch does not have anything to do with that option, does it?
WRT passing noloop that laptop has a weird i8042 implementation where the
kernel does not detect the aux port at all unless noloop is passed, a
patch to do this automatically is already upstream:
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/drivers/input/serio/i8042-x86ia64io.h?id=9ff84a17302aeb8913ff244ecc0d8f9d219fecb5
WRT needing to pass psmouse.proto=bare, that should not be necessary
with recent kernels, but the fix for this has only gone upstream very
recently, so likely he is just using a somewhat older kernel.
Regards,
Hans
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