Re: kbd not functioning in 2.5.25-dj2

Russell King (rmk@arm.linux.org.uk)
Sun, 14 Jul 2002 19:13:01 +0100

On Sun, Jul 14, 2002 at 08:01:19PM +0200, Vojtech Pavlik wrote:
> On Sun, Jul 14, 2002 at 07:37:29PM +0200, Andries Brouwer wrote:
> > Send 0xff to port 60. Wait for the 0xfa ack. Wait for the 0xaa good status.
>
> The problem is that 0xff takes too long to finish to be done while Linux
> is booting, and it has already been done by the BIOS.

Ah hem, "bios". Do we trust that hunk of proprietary code now? Note
also that pc_keyb.c allowed for embedded devices where there is no BIOS.
That said, not sending 0xff seems to be fine on the keyboards I have
here. I wouldn't like to guarantee that it's fine across all keyboards
though, just like sending 0xAA on reconnect isn't guaranteed.

-- 
Russell King (rmk@arm.linux.org.uk)                The developer of ARM Linux
             http://www.arm.linux.org.uk/personal/aboutme.html


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