On 2/1/06, Alan Stern <[EMAIL PROTECTED]> wrote:
> Dmitry:
>
> These two bug reports appear to be the same problem:
>
> http://bugzilla.kernel.org/show_bug.cgi?id=4791
> http://bugzilla.kernel.org/show_bug.cgi?id=5932
>
> My feeling is that there's no way to change the OHCI usb-handoff code so
> that it will work with these buggy BIOSes.  The reason the problem is
> showing up now is probably an order-of-execution thing.  Previously the
> i8042 would be initialized before the USB handoff, so it worked okay.  Now
> the i8042 initialization occurs after the USB handoff, so it fails.
>
> I don't know what we can do about this.  Perhaps you could somehow force
> the i8042 initialization to run earlier when it's not built as a module?
>

[Adding Vojtech to CC as he may remember more about handoff business]

Alan,

Unfortunately for some boxes we _need_ to perform USB handoff before
initializing i8042 to avoid getting "Can't read CTR" condition, as you
can see from this bug:

http://bugzilla.kernel.org/show_bug.cgi?id=2935

I also remember reports outside bugzilla that were cured with
"usb-hanoff". So it is kind of "damned if you do, damned if you don't"
scenario. Could you ask guys having problems with OHCI handoff try
older kernel (like 2.6.13) with "usb-handoff" on the command line?
Maybe there is still a way to get OHCI handoff going...

--
Dmitry


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