From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from mout.gmx.net ([212.227.15.19]:59478 "EHLO mout.gmx.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754007AbaA1CCp (ORCPT ); Mon, 27 Jan 2014 21:02:45 -0500 Received: from minime.bse ([77.20.120.199]) by mail.gmx.com (mrgmx103) with ESMTPSA (Nemesis) id 0LgI0W-1VTSCm152i-00niTn for ; Tue, 28 Jan 2014 03:02:44 +0100 Date: Tue, 28 Jan 2014 03:02:42 +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: <20140128020242.GA31019@minime.bse> References: <20140122135036.GA14871@minime.bse> <52E00AD0.2020402@googlemail.com> <20140123132741.GA15756@minime.bse> <52E1273F.90207@googlemail.com> <20140125152339.GA18168@minime.bse> <52E4EFBB.7070504@googlemail.com> <20140126125552.GA26918@minime.bse> <52E5366A.807@googlemail.com> <20140127032044.GA27541@minime.bse> <52E6C7A4.8050708@googlemail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <52E6C7A4.8050708@googlemail.com> Sender: linux-media-owner@vger.kernel.org List-ID: On Mon, Jan 27, 2014 at 08:55:00PM +0000, Robert Longbottom wrote: > >As for the CPLD, there is not much we can do. I count 23 GPIOs going > >to that chip. And we don't know if some of these are outputs of the > >CPLD, making it a bit risky to just randomly drive values on those > >pins. > > Is that because it might do some damage to the card, or to the host > computer, or both? If there is damage, it will most likely be restricted to the card. > Or is it just too hard to make random guesses at > what it should be doing? When we cycle through all combinations in one minute, there are about a hundred PCI cycles per combination left for the chip to be granted access to the bus. I expect most of the pins to provide a priority or weighting value for each BT878A, so there should be many combinations that do something. > >If we had the original software, we could analyze what it is doing. > >There is someone on ebay.com selling two of those cards and a cd > >labled "Rescue Disk Version 1.14 for Linux DVR". > > Ah yes, I've just found that, it seems a little pricey! Maybe the seller is nice person and provides the contents of the CD for free. > There is > also a listing for an "Avermedia 4 Eyes Pro Capture Card PCI 8604" > which looks pretty much the same, but it doesn't have any software > with it and searching around for any more information on that hasn't > got me anywhere. It's the same card but it is not the Avermedia 4 Eyes Pro. Daniel