Date: Wed, 9 Dec 1998 09:10:00 -0800 (PST) From: David Pick <D.M.Pick@qmw.ac.uk> To: freebsd-bugs@FreeBSD.ORG Subject: Re: kern/9030: DMPno2 - PCCards are not being recognised on insertion after system startup Message-ID: <199812091710.JAA06058@freefall.freebsd.org>
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The following reply was made to PR kern/9030; it has been noted by GNATS.
From: David Pick <D.M.Pick@qmw.ac.uk>
To: Nate Williams <nate@mt.sri.com>
Cc: FreeBSD-gnats-submit@freebsd.org
Subject: Re: kern/9030: DMPno2 - PCCards are not being recognised on insertion
after system startup
Date: Wed, 09 Dec 1998 16:58:29 +0000
In message <199812091526.IAA16917@mt.sri.com>you write:
>> >Number: 9030
>> >Category: kern
>> >Synopsis: DMPno2 - PCCards are not being recognised on insertion afte
>r system startup
>> >Confidential: no
>> >Severity: serious
>> >Priority: high
>> >Responsible: freebsd-bugs
>> >State: open
>> >Quarter:
>> >Keywords:
>> >Date-Required:
>> >Class: sw-bug
>> >Submitter-Id: current-users
>> >Arrival-Date: Wed Dec 9 03:30:01 PST 1998
>> >Last-Modified:
>> >Originator: David Pick
>> >Organization:
>> >Release: FreeBSD 3.0-RELEASE i386
>> >Environment:
>>
>> FreeBSD 3.0 installed from Walnut Creek CDROM onto a
>> Toshiba Libretto 50CT.
>>
>> >Description:
>>
>> PCCards are not being recognised on insertion.
>
>Here's a quick fix for the problem. The correct fix is to configure
>your PCIC controller quickly. The reason this hasn't been done is
>no-one with the ability to do it has the time to do it.
>
>On line 816 of /sys/pcic.c:
> if (validslots && pcic_irq <= 0)
>Change this to:
> if (validslots)
>
>And it will work. However, you're wasting an IRQ for the PCIC
>controller that is doing nothing for you.
And indeed it *did* work. Many thanks. I must admit to some
curiosity about how/why this causes an IRQ to be wasted, and
if the code you advised removing was there only to prevent an
IRQ from being wasted; but I guess I'll have to read the code
to find out why/what is happening ( ;-) - and if I understand
it fix it myself ( ;-) (!)
I don't know if it makes any difference, but in the Toshiba
Libretto I'm using the PCIC says it's using IRQ 5, and the
sound hardware (Yamaha OPL-3) *also* says it uses IRQ 5...
I think we can declare this one closed. My thanks again for the
excelently quick response.
--
David Pick
D.M.Pick@qmw.ac.uk
a.k.a. Hostmaster@qmw.ac.uk
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