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From: Pete Zaitcev <zaitcev@redhat.com>
To: Chris Heath <chris@heathens.co.nz>
Cc: aebr@win.tue.nl, zaitcev@redhat.com, linux-kernel@vger.kernel.org
Subject: Re: i8042 problem
Date: Sun, 27 Jul 2003 02:06:21 -0400	[thread overview]
Message-ID: <20030727020621.A11637@devserv.devel.redhat.com> (raw)
In-Reply-To: <20030726212513.A0BD.CHRIS@heathens.co.nz>; from chris@heathens.co.nz on Sat, Jul 26, 2003 at 09:41:32PM -0400

> Date: Sat, 26 Jul 2003 21:41:32 -0400
> From: Chris Heath <chris@heathens.co.nz>

> > > drivers/input/serio/i8042.c: 00 -> i8042 (kbd-data) [40] 
> > > drivers/input/serio/i8042.c: 60 -> i8042 (command) [50] 
> > > drivers/input/serio/i8042.c: 44 -> i8042 (parameter) [50] 
> > > drivers/input/serio/i8042.c: fa <- i8042 (interrupt, kbd, 1) [51] 
> > > serio: i8042 KBD port at 0x60,0x64 irq 1 
> > > <------------- This is it, keyboard is dead. 
> > 
> > Writing 44 to the command byte disables IRQ1. 
> 
> It looks like a timeout problem.  The ack (fa) arrived 11 ticks after
> the byte (00) was sent, but it looks like the timeout is only 10 ticks.
> 
> Try playing with the timeout in atkbd_sendbyte (line 217 of
> drivers/input/keyboard/atkbd.c).

Playing with timeout does not help, but on second thought
I suspect that atkbd fails to open the port for some reason,
that's why interrupts stay disabled.

-- Pete

  reply	other threads:[~2003-07-27  5:51 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2003-07-26  6:11 i8042 problem Pete Zaitcev
2003-07-26  9:36 ` Andries Brouwer
2003-07-27  1:41   ` Chris Heath
2003-07-27  6:06     ` Pete Zaitcev [this message]
2003-07-27 10:47       ` Andries Brouwer
2003-07-28  1:55         ` Pete Zaitcev
2003-07-28 11:25           ` Alan Cox
2003-07-28 11:59             ` Andries Brouwer
2003-07-28 14:01               ` Maciej W. Rozycki
2003-07-28 14:54                 ` Andries Brouwer
2003-07-28 15:43                   ` Maciej W. Rozycki
2003-07-28 15:51                     ` Andries Brouwer
2003-07-29 18:29                       ` Maciej W. Rozycki
2003-08-12 20:46                         ` Vojtech Pavlik
2003-08-13 13:44                           ` Maciej W. Rozycki
2003-07-28 16:07             ` Pete Zaitcev
2003-08-12 20:47               ` Vojtech Pavlik
2003-08-12 20:42         ` Vojtech Pavlik
2003-08-12 23:06           ` Andries Brouwer

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