From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from mail.kapsi.fi ([217.30.184.167]:33131 "EHLO mail.kapsi.fi" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754044Ab2KZSxh (ORCPT ); Mon, 26 Nov 2012 13:53:37 -0500 Message-ID: <50B3BA92.6090407@iki.fi> Date: Mon, 26 Nov 2012 20:53:06 +0200 From: Antti Palosaari MIME-Version: 1.0 To: Ingo Kofler CC: linux-media@vger.kernel.org Subject: Re: Tuning problems with em28xx-dvb & tda10071 on MIPS-based router board References: In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-media-owner@vger.kernel.org List-ID: On 11/26/2012 07:50 PM, Ingo Kofler wrote: > Hi, > > I am trying to get my PCTV DVB-S2 stick running on my TP-Link > TL-WR1043ND that runs OpenWrt (Attitude Adjustment Beta, Kernel > 3.3.8). I have cross-compiled the corresponding kernel modules and > deployed them on the router. I have also deployed the firmware on the > device. > > After loading the corresponding modules the /dev/dvb/... devices show > up and the dmesg output seems to be fine. Then I tried to test the > device using szap and a channels.conf file. Unfortunately, the device > cannot tune to most of the transponders except of two. Both are > located in the vertical high band of the Astra 19E. For all other > transponders I do not get a lock of the frontend. > > Tuning works fine on my PC using kernel verions 3.2 and 3.5 (the ones > that ship with Ubuntu) and using the same channels.conf file and > stick. So I conclude that both the stick, the satellite dish and the > channels.conf is working. I've also tested it on the router board with > an external powered USB Hub (I though that maybe the power of the > router's USB port wasn't good enough). > > Now I have no further ideas. Before I start to debug the C code and > try to figure out the difference between the PC and the router - Are > there any known issues with this driver? Does it work on MIPS and > different endianess? No idea if it works or not any other than AMD64 (and i386). I use AMD64 Kernel on my computer and I cannot test easily any other arch's as I don't have suitable hardware. i386 is so common which means bug reports are got very quickly and fixed. Generally speaking I am a little bit surprised these drivers seems to just work from arch to arch quite often. regards Antti -- http://palosaari.fi/