From mboxrd@z Thu Jan 1 00:00:00 1970 From: rct@frus.com (Bob Tracy) Subject: Re: [alsa-devel] [regression] 2.6.25-rc4 snd-es18xx broken on Alpha Date: Sun, 30 Mar 2008 17:09:56 -0500 (CDT) Message-ID: <20080330220956.1E9C6DBA2@gherkin.frus.com> References: <47DEEA09.9000108@keyaccess.nl> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <47DEEA09.9000108@keyaccess.nl> "from Rene Herman at Mar 17, 2008 11:00:41 pm" Sender: linux-alpha-owner@vger.kernel.org To: Rene Herman Cc: Bob Tracy , Michael Cree , Takashi Iwai , ALSA devel , linux-kernel@vger.kernel.org, Ivan Kokshaysky , linux-alpha@vger.kernel.org, Krzysztof Helt List-Id: alsa-devel@alsa-project.org Rene Herman wrote: > Okay, thought I'd stare at this thing a bit -- there's no specific 1888 > documentation available it seems but I did notice something in the 1878 > datasheet which might mean something. The docs says that bits 0-1 are don't > care for DMA but don't for IRQ, so could it possibly be as simple as the > attached? > > 1878 sheet doesn't document register 0x7f, it seems... > > Assuming it's not just this, this thing is going to require quite a bit of > trial and error and without the hardware this will be troublesome. I expect > this is not it, since the arch init code also doesn't care about bit 0 when > setting that same register for IRQ 5. > > If this is not it -- I'd try s/0x50/0x10/ in that line, even completely > commenting out the IRQ setting line (with the arch code built in) and just > generally frolic around 'till something blows up... > > (es18xx_trial_and_error) As distributed, no change: still not seeing any activity on IRQ 5. I'll play around with it some over the next day or so. Observed: the alsa "snd-sb8" driver works fine. Question: how does IRQ setup differ between the sb8 and the es18xx drivers? If I can find some time, I'll try to figure that out... -- ------------------------------------------------------------------------ Bob Tracy | "I was a beta tester for dirt. They never did rct@frus.com | get all the bugs out." - Steve McGrew on /. ------------------------------------------------------------------------