From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from [195.7.61.12] ([195.7.61.12]:32986 "EHLO killala.koala.ie" rhost-flags-FAIL-FAIL-OK-OK) by vger.kernel.org with ESMTP id S1752763AbZFNWtK (ORCPT ); Sun, 14 Jun 2009 18:49:10 -0400 Message-ID: <4A357E65.3060404@koala.ie> Date: Sun, 14 Jun 2009 23:49:09 +0100 From: Simon Kenyon MIME-Version: 1.0 To: "Igor M. Liplianin" CC: linux-media@vger.kernel.org Subject: Re: [linux-dvb] SDMC DM1105N not being detected References: <200906061157.16433.liplianin@me.by> <4A2AD39B.9010700@koala.ie> <200906121205.08345.liplianin@me.by> In-Reply-To: <200906121205.08345.liplianin@me.by> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-media-owner@vger.kernel.org List-ID: Igor M. Liplianin wrote: > On 6 June 2009 23:37:47 Simon Kenyon wrote: >> Igor M. Liplianin wrote: >>> On 5 June 2009 21:41:46 Simon Kenyon wrote: >>>> Simon Kenyon wrote: >>>>> Simon Kenyon wrote: >>>>>> the picture seems to be breaking up badly >>>>>> will revert to my version and see if that fixes it >>>>> [sorry for the delay. i was away on business] >>>>> >>>>> i've checked and your original code, modified to compile and including >>>>> my changes to control the LNB works very well; the patch you posted >>>>> does not. i have swapped between the two and rebooted several times to >>>>> make sure. >>>>> >>>>> i will do a diff and see what the differences are >>>>> >>>>> regards >>>>> -- >>>>> simon >>>> the main changes seem to be a reworking of the interrupt handling and >>>> some i2c changes >>>> -- >>>> simon >>> How fast is your system? >> reasonably fast >> it is a dual core AMD64 X2 running at 3.1GHz >> >> > Main change is to move demuxing from interrupt to work handler. > So I prepaired another patch, with separate work queue. > May be you find some time to test. > > I wonder CPU usage and interrupts count(cat /proc/interrupts) while viewing DVB. > I guess your card generates a lot of unnecessary(unknown ?) irq's. > > Another idea is to increase dma buffer. > i've tested that now sorry for the delay - at a family wedding anyway, that seems to work fine. will st some more, but the first results (with kaffeine) seem good. i did a complete scan and then tried about 20 different channels. they all seemed to work fine. thanks -- simon