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From: Dave Eckhardt <davide+p9@cs.cmu.edu>
To: Fans of the OS Plan 9 from Bell Labs <9fans@9fans.net>
Subject: Re: [9fans] JVC Netbook works fine, except PCMCIA
Date: Thu, 31 Dec 2009 20:58:49 -0500	[thread overview]
Message-ID: <12938.1262311129@lunacy.ugrad.cs.cmu.edu> (raw)
In-Reply-To: <cd6983820912302151p10019a89x31460e020e0eaaaa@mail.gmail.com>

> % cat /dev/ioalloc
> [...]
> 400     5ff cardbus # This is the concerned card.

I think I've seen this before.  A year ago I was trying to get
a LinkSys pseudo-Tulip CardBus card working.  Before I gave up,
I ran into a situation where the CardBus driver was allocating
a hunk of I/O space for the card but the card was later unable
to use the space.  At that time I convinced myself that the
problem was in ioalloc(), around line 230 of devarch.c.  This
is what I did at the time, though I never submitted it as a
patch since I wasn't able to prove it was right by getting the
card to work, plus which I wasn't sure I was fully understanding
the code.

-  if(m->reserved && m->start == port && m->end == port + size) {
+  if(m->reserved && m->start == port && m->end >= port + size) {

Dave Eckhardt



  reply	other threads:[~2010-01-01  1:58 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-12-30 13:54 Frederik Caulier
2009-12-30 18:25 ` Tim Newsham
2009-12-31  5:10 ` Dave Eckhardt
2009-12-31  5:38   ` erik quanstrom
2009-12-31  6:02     ` Frederik Caulier
2009-12-31  5:51   ` Frederik Caulier
2010-01-01  1:58     ` Dave Eckhardt [this message]
2010-01-09  5:21       ` Frederik Caulier
     [not found] <<Pine.BSI.4.64.0912300824050.5454@malasada.lava.net>
2009-12-31  3:31 ` erik quanstrom

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