From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from mx1.redhat.com ([209.132.183.28]:18823 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750758AbaATRgc (ORCPT ); Mon, 20 Jan 2014 12:36:32 -0500 Date: Mon, 20 Jan 2014 12:36:26 -0500 From: Jarod Wilson To: Sean Young Cc: Martin Kittel , Mauro Carvalho Chehab , linux-media@vger.kernel.org Subject: Re: Patch mceusb: fix invalid urb interval Message-ID: <20140120173625.GA18257@redhat.com> References: <20131211131751.GA434@pequod.mess.org> <20140115134917.1450f87c@samsung.com> <20140115165245.GA23620@pequod.mess.org> <20140115155923.0b8978da.m.chehab@samsung.com> <52DC3E0B.6010202@martin-kittel.de> <20140119215648.GA15388@pequod.mess.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140119215648.GA15388@pequod.mess.org> Sender: linux-media-owner@vger.kernel.org List-ID: On Sun, Jan 19, 2014 at 09:56:48PM +0000, Sean Young wrote: > On Sun, Jan 19, 2014 at 10:05:15PM +0100, Martin Kittel wrote: > > Hi Mauro, hi Sean, ... > > >From a71676dad29adef9cafb08598e693ec308ba2e95 Mon Sep 17 00:00:00 2001 > > From: Martin Kittel > > Date: Sun, 19 Jan 2014 21:24:55 +0100 > > Subject: [PATCH] mceusb: use endpoint xfer mode as advertised > > > > mceusb always sets endpoints to interrupt transfer mode no matter > > what the device itself is advertising. This causes trouble on xhci > > hubs. This patch changes the behavior to honor the device endpoint > > settings. > > This patch is wrong. I get: > > [ 60.962727] ------------[ cut here ]------------ > [ 60.962729] WARNING: CPU: 0 PID: 0 at drivers/usb/core/urb.c:452 usb_submit_u > rb+0x1fd/0x5b0() > [ 60.962730] usb 3-2: BOGUS urb xfer, pipe 1 != type 3 > > This is because the patch no longer sets the endpoints to interrupt > endpoints, but still uses the interrupt functions like > usb_fill_int_urb(). Crap, I sent a working patch to everyone a few days ago, but from a new host that didn't have relay stuff set up yet, so I don't think anyone got the message. Oops... I'll try to dig it back up. Its a quick fix, but its tested as fully functional on multiple devices here, including a mix of ones that claim bulk and interrupt, ones with no bInterval, ones with different non-0 bIntervals, etc. -- Jarod Wilson jarod@redhat.com