From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from mail.kapsi.fi ([217.30.184.167]:53190 "EHLO mail.kapsi.fi" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752684AbaG3NA6 (ORCPT ); Wed, 30 Jul 2014 09:00:58 -0400 Message-ID: <53D8EC86.6020701@iki.fi> Date: Wed, 30 Jul 2014 16:00:54 +0300 From: Antti Palosaari MIME-Version: 1.0 To: Bjoern , Rudy Zijlstra CC: Linux Media Mailing List , Thomas Kaiser Subject: Re: ddbridge -- kernel 3.15.6 References: <53C920FB.1040501@grumpydevil.homelinux.org> <53CAAF9D.6000507@kaiser-linux.li> <1406697205.2591.13.camel@bjoern-W35xSTQ-370ST> In-Reply-To: <1406697205.2591.13.camel@bjoern-W35xSTQ-370ST> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-media-owner@vger.kernel.org List-ID: On 07/30/2014 08:13 AM, Bjoern wrote: >> Hello Rudy >> >> I use a similar card from Digital Devices with Ubuntu 14.04 and kernel 3.13.0-32-generic. Support for this card was not build into the kernel and I had to compile it myself. I had to use media_build_experimental from Mr. Endriss. >> >> http://linuxtv.org/hg/~endriss/media_build_experimental >> >> Your card should be supported with this version. >> >> Regards, Thomas > > Hi Rudy, > > What Thomas writes is absolutely correct... > > This is unfortunately the worst situation I've ever run across in > Linux... There was a kernel driver that worked and was supported by > Digital Devices. Then, from what I read, changes to how the V4L drivers > have to be written was changed - Digital Devices doesn't like that and > they force users to use "experimental" builds which are the "old > style". > > This is total rubbish imo - if this is how it was decided that the > drivers have to be nowadays then adjust them. Why am I paying such a lot > of money others right, these DD cards are really not cheap? > > Some attempts have been made by people active here to adapt the drivers > and make them work in newer kernels, but so far no one has succeeded. > Last attempt was in Jan 2014 iirc, since then - silence. > > I wish I could help out, I can code but Linux is well just a bit more > "difficult" I guess ;-) I have one of such device too, but I have been too busy all the time with other drivers... Basically these DTV drivers should be developed in a order, bridge driver first, then demod and tuner - for one single device. After it is committed in tree, you could start adding new devices and drivers. If you try implement too big bunch of things as a once, you will likely fail endless reviews and so. I don't know what is change in development process which causes these problems. What I remember there has been only few big changes in recent years, change from Mercurial to Git and reorganization of directories/files. regards Antti -- http://palosaari.fi/