From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from mail.kapsi.fi ([217.30.184.167]:52138 "EHLO mail.kapsi.fi" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751685Ab2IWQXB (ORCPT ); Sun, 23 Sep 2012 12:23:01 -0400 Message-ID: <505F3750.8070104@iki.fi> Date: Sun, 23 Sep 2012 19:22:40 +0300 From: Antti Palosaari MIME-Version: 1.0 To: Marx CC: linux-media@vger.kernel.org Subject: Re: ITE9135 on AMD SB700 - ehci_hcd bug References: <5055E0ED.8030808@iki.fi> In-Reply-To: <5055E0ED.8030808@iki.fi> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-media-owner@vger.kernel.org List-ID: On 09/16/2012 05:23 PM, Antti Palosaari wrote: > On 09/12/2012 09:32 AM, Marx wrote: >> Hello >> I'm trying to use dual DVB-T tuner based on ITE9135 tuner. I use Debian >> kernel 3.5-trunk-686-pae. My motherboard is AsRock E350M1 (no USB3 >> ports). >> Tuner is detected ok, see log at the end of post. >> >> When I try to scan channels, bug happens: >> Sep 11 17:16:31 wuwek kernel: [ 209.291329] ehci_hcd 0000:00:13.2: >> force halt; handshake f821a024 00004000 00000000 -> -110 >> Sep 11 17:16:31 wuwek kernel: [ 209.291401] ehci_hcd 0000:00:13.2: HC >> died; cleaning up >> Sep 11 17:16:31 wuwek kernel: [ 209.291606] usb 2-3: USB disconnect, >> device number 2 >> Sep 11 17:16:41 wuwek kernel: [ 219.312848] dvb-usb: error while >> stopping stream. >> Sep 11 17:16:41 wuwek kernel: [ 219.320585] dvb-usb: ITE 9135(9006) >> Generic successfully deinitialized and disconnected. >> >> After trying many ways I've read about problems with ehci on SB700 based >> boards and switched off ehci via command >> sh -c 'echo -n "0000:00:13.2" > unbind' >> and now ehci bug doesn't happen. Of course I can see only one tuner and >> in slower USB mode (see log at the end). But now I can scan succesfully >> without any errors. >> >> Of course it isn't acceptable fix for my problem. Drivers for ITE9135 >> seems ok, but there is a problem with ehci_hcd on my motherboard. >> I would like to know what can I do to fix my problem. > > I am quite sure dvb_usb_v2 fixes that. Test latest tree. > > Antti > Test results please? Antti -- http://palosaari.fi/