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Date: Thu, 18 Jul 2002 17:31:32 +0200
From: Vojtech Pavlik <vojtech@suse.cz>
To: Stelian Pop <stelian.pop@fr.alcove.com>, Vojtech Pavlik <vojtech@suse.cz>,
       Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: input subsystem config ?
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On Thu, Jul 18, 2002 at 05:28:29PM +0200, Stelian Pop wrote:
> On Thu, Jul 18, 2002 at 05:15:31PM +0200, Vojtech Pavlik wrote:
> 
> > > If I do not disable the 'return -1', the mouse will not be found at
> > > all, and moving it will get no messages in the logs...
> > 
> > Ok, that's what I wanted to know - I was wondering whether the mouse
> > would simply ignore all control commands. And it doesn't not. It needs
> > the commands, 
> 
> I'm not sure about that. It will not work if I do not disable the
> 'return -1' because the irq will get freed, so the driver will have
> no chance to get any mouse event.

Actually, no. It also polls the chip repeatedly without needing an irq,
so it can receive bytes even when no irq happens.

> > but doesn't send any replies.
> 
> Maybe I should put some debug statements in the pc_keyb.c interrupt
> handler and see if the mouse does answer the control commands ?

That's a good idea, yes.

> > Can you check what happens if you use an external mouse together with
> > the internal one?
> >
> > I suspect both will work OK.
> 
> External like in 'external PS/2' mouse ? Bad luck, this laptop 
> has no PS/2 (or serial) port. :-(

Ok.

> I can plug in a USB mouse, but I doubt it will show any useful
> information...

No, it won't.

-- 
Vojtech Pavlik
SuSE Labs
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