lkml.org 
[lkml]   [2003]   [Jul]   [27]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: 2.6.0-test2 has i8042 mux problems
On Sun, Jul 27, 2003 at 07:13:26PM -0700, dean gaudet wrote:

> this was a bug i reported back a few versions as well -- and i don't think
> i received any responses (nor from the maintainer).
>
> i've got a box on which 2.4.x works fine, but 2.6.0-test2 gets into a snit
> when it's trying to initialize the i8042. i can get 2.6.0-test2 to boot
> if i add "i8042_nomux".
>
> the mux initialization code seems kind of ... wonk -- it seems to write
> values to the registers then read back and if the value is the same then
> it assumes the mux is there. that seems way too likely to be broken in
> situations when the mux isn't there... it'd be better to be looking for
> some value which is different after writing.

No, it writes f0, 56, a4 and if it gets f0, 56, and not a4, then it assumes
there is a mux.

[This is a Synaptics convention.]

What hardware do you have? And what is the conversation?

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2005-03-22 13:47    [W:0.065 / U:2.360 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site