Re: i8042 access timings

[Vojtech Pavlik]

On Thu, Jan 27, 2005 at 03:14:36PM +0000, Alan Cox wrote:

> On Maw, 2005-01-25 at 20:37, Lee Revell wrote:
> > Seems like a comment along the lines of "foo hardware doesn't work right
> > unless we delay a bit here" is the obvious solution.  Then someone can
> > easily disprove it later.
> 
> Myths are not really involved here. The IBM PC hardware specifications
> are fairly well defined and the various bits of "we glued a 2Mhz part
> onto the bus" stuff is all well documented. Nowdays its more complex
> because most kbc's aren't standalone low end microcontrollers but are
> chipset integrated cells or even software SMM emulations.
> 
> The real test is to fish out something like an old Digital Hi-note
> laptop or an early 486 board with seperate kbc and try it.

I'm testing it on an NexGen Nx586 VL-BUS board that has a separate i8042
controller. ;) Remember NexGen?

-- 
Vojtech Pavlik
SuSE Labs, SuSE CR
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