Re: [PATCH 24/44] Workaround i8042 chips with broken MUX mode

[Vojtech Pavlik]

On Tue, Mar 16, 2004 at 10:24:09AM -0800, Dmitry Torokhov wrote:

> Vojtech Pavlik wrote:
> > +	
> > +	/* Workaround for broken chips which seem to
> support MUX, but in reality don't. */
> > +	/* They all report version 12.10 */
> > +	if (mux_version == 0xCA)
> > +		return -1;
> 
> Hi, 
> 
> I think it should be 0xAC (0xA4 with 4th bit flipped)
> as the version reported is 10.12:
> 
> i8042.c: Detected active multiplexing controller, rev
> 10.12.
> 
> From little debug info that I've been sent ThinkPad's
> controllers seem to be flipping 4th bit sometimes, I
> can't quite pinpoint the exact sequence.

Could this be the bit that indicates whether the report is coming from
an internal or external device?

-- 
Vojtech Pavlik
SuSE Labs, SuSE CR
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