From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from mailout-14.websupport.sk ([37.9.172.143]:33215 "EHLO mailout-14.websupport.sk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753423Ab2KSP4k (ORCPT ); Mon, 19 Nov 2012 10:56:40 -0500 Received: from lb1.websupport.sk (localhost [127.0.0.1]) by smtp-cf.websupport.sk (Postfix) with ESMTP id 1A71D1004B88 for ; Mon, 19 Nov 2012 16:47:04 +0100 (CET) Received: from [192.168.1.217] (dsl-static-135.212-5-193.telecom.sk [212.5.193.135]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) (Authenticated sender: topolsky@maindata.sk) by mail1.websupport.sk (Postfix) with ESMTPSA for ; Mon, 19 Nov 2012 16:47:03 +0100 (CET) Message-ID: <50AA54BB.1010107@maindata.sk> Date: Mon, 19 Nov 2012 16:48:11 +0100 From: Ondrej Topolsky MIME-Version: 1.0 To: linux-media@vger.kernel.org Subject: dvbnet error Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-media-owner@vger.kernel.org List-ID: Dear linuxtv developer-s I am trying (it is now couple of days - of no avail) to create interface with dvbnet utility for decoding IP with MPE (tested with DVB-H signal containing IP packets). I run: dvbnet -a 0 -p 1002 gives me this output: Error: couldn't open device 0: 2 No such file or directory But the char device /dev/dvb/adapter0/net0 is definitely there (in it's default location). For some reason dvbnet_open function in dvb-apps/lib/libdvbapi/dvbnet.c cannot open this device I have search mailing(and intenet) list but I haven't found any issue similar to this. Specs: I have embedded linux set-top Skytec JOBI box which has sh4 architecture and 2.6.32.28_stm24_0207 kernel. It is this device: http://www.satmultimedia.tv/skytec-hd-jobi as Os i have installed enigma2 linux. I thought that maybe there isn't kernel support for MPE, but why should there be net0 device which was created by driver.. My attempts: After no success with debian .deb packege of dvb-apps for sh4 (installed with ipkg ), I cross-compiled dvb-apps staticaly(from mercurial repository). Eeverything works: szap, scan.. dvbsnoop. I can tune to signal, zap channels, sniff traffic with dvbtraffic, but dvbnet is giving me that "no such file.." error. I have other machine which is running debian and is receiving same signal as is STB and I successfuly received IP from MPE (tested with tcpdump) on that other machine with no problem. I noticed that in /sys/class/dvb/ there is no dvb0.net0 folder (but i am not exactly sure what is /sys/class/dvb folder used for). Another wierd thing is that when I run dvbnet -h it segfaults and when I run /usr/bin/dvbnet -h it works (its definitely the same binary - with my debug messages). Questions: Can You please tell me why dvbnet cannot open this net0 device - or what should I do to find out? Maybe it is used by some process, but i killed TV interface enigma2 before trying anything(init 3, init 4 - it is not longer displayed in ps). And can You please tell me how to detect if my kernel/driver has MPE support (there is no /proc/kallsyms file on STB) - maybe some C code. Finaly I was trying to find some info about MPE but there seem to be very little on internet. I would be grateful for any informations or links.. All the best Ondrej Topolsky Programmer at Maindata inc. Slovakia