Subject: Re: midi ports
To: Kyle Farrell <orb@ee.washington.edu>
From: Leo Weppelman <leo@wau.mis.ah.nl>
List: port-atari
Date: 12/10/1996 09:55:10
Kyle Farrell wrote:
> 
> has anyone had problems with midi devices hooked up to an atari netbsd
> machine?  I've got the midi in/out hooked up for some programs I use with
> TOS.  The problem is that if the midi devices transmit while NetBSD (1.2)
> is running, the keyboard appears to freeze up.  I don't think the machine
> is frozen (xclock & xload still run), but I can't get any response from
> the keyboard or mouse. 
> 
> The only workaround i've got at the moment is to make sure nothing 
> transmits to my TT over the midi connection.  Anyone know a better 
> solution for this?

I at least found out *why* this is happening. Both midi & keyboard share
an interrupt line. The keyboard driver however does not check if the
interrupt really originates from the keyboard acia. I'll put this on my
todo-list.

Leo.