From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from mx02.posteo.de ([89.146.194.165]:45588 "EHLO mx02.posteo.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751468AbbFAIov (ORCPT ); Mon, 1 Jun 2015 04:44:51 -0400 Date: Mon, 1 Jun 2015 10:44:47 +0200 From: Patrick Boettcher To: Jemma Denson Cc: Antti Palosaari , linux-media@vger.kernel.org, mchehab@osg.samsung.com Subject: Re: [PATCH v2 1/4] b2c2: Add option to skip the first 6 pid filters Message-ID: <20150601104447.0454d255@dibcom294.coe.adi.dibcom.com> In-Reply-To: <556C12E3.3020404@gmail.com> References: <1433009409-5622-1-git-send-email-jdenson@gmail.com> <1433009409-5622-2-git-send-email-jdenson@gmail.com> <556BF852.80202@iki.fi> <556C12E3.3020404@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-media-owner@vger.kernel.org List-ID: Hi all, On Mon, 01 Jun 2015 09:08:03 +0100 Jemma Denson wrote: > Yes, that might work, I hadn't though of just swapping them around - > thanks. It would however assume that the 0x0000 PAT feed is requested > early on enough that it always sits within the bank of 32 and nothing > else is too bothered by the odd out of order packet. > > The only concern I have got is if there is any other oddness in the > first 6 - this card is the only flexcop based card with dvb-s2 and there > is a lack of stream with high bitrate transponders (>approx. 45Mbps), > which we think might due to the hardware pid filter. The card apparently > works fine under the windows driver so it's a case of trying to work out > what that might be doing differently. It's quite speculative at the > moment but I'm hoping this patch might help with that and I'm waiting > for some feedback on that - I'm stuck with 28.2E which doesn't hold > anything interesting. > > At the moment it doesn't really matter too much having only 32 filters > rather than the full 38 - it does switch to full-TS once it runs out of > hardware filters, and the only issue with full-TS is that the flexcop > can't pass a TS with more than 45Mbps (but they aren't working at the > moment anyway) I agree, if the 6 PID-filters are not working they should be used. The worth is receiving PSI of a transponder/channel which is in fact from the one previously tuned. I think it is better to leave it as you suggested. -- Patrick.