From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from mout.gmx.net ([212.227.15.18]:49908 "EHLO mout.gmx.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752717AbaAWN1q (ORCPT ); Thu, 23 Jan 2014 08:27:46 -0500 Received: from minime.bse ([77.20.120.199]) by mail.gmx.com (mrgmx002) with ESMTPSA (Nemesis) id 0MGSDw-1W1wbg3T3Q-00DFJw for ; Thu, 23 Jan 2014 14:27:44 +0100 Date: Thu, 23 Jan 2014 14:27:41 +0100 From: Daniel =?iso-8859-1?Q?Gl=F6ckner?= To: Robert Longbottom Cc: "linux-media@vger.kernel.org" Subject: Re: Conexant PCI-8604PW 4 channel BNC Video capture card (bttv) Message-ID: <20140123132741.GA15756@minime.bse> References: <52DD977E.3000907@googlemail.com> <1c25db0a-f11f-4bc0-b544-692140799b2a@email.android.com> <7D00B0B1-8873-4CB2-903F-8B98749C75FF@googlemail.com> <20140121101950.GA13818@minime.bse> <52DECF44.1070609@googlemail.com> <52DEDFCB.6010802@googlemail.com> <20140122115334.GA14710@minime.bse> <52DFC300.8010508@googlemail.com> <20140122135036.GA14871@minime.bse> <52E00AD0.2020402@googlemail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <52E00AD0.2020402@googlemail.com> Sender: linux-media-owner@vger.kernel.org List-ID: On Wed, Jan 22, 2014 at 06:15:44PM +0000, Robert Longbottom wrote: > On 22/01/14 13:50, Daniel Glöckner wrote: > >This is strange. There are 7 different IRQs assigned to that card but > >PCI slots only have 4. According to the pictures each 878A gets one of > >these. The .0 and .1 functions of a 878A must always share the same IRQ. It seems the .1 functions still show the IRQ assigned by the BIOS, while the .0 functions had their IRQ reassigned when a driver was bound. The .1 IRQ would probably have been reassigned as well if you tried to use the audio driver. I don't think this is the problem. Can you try to load bttv with irq_debug=1? This should generate a lot of output. Daniel