From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from gofer.mess.org ([80.229.237.210]:39189 "EHLO gofer.mess.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932130AbcDYRPJ (ORCPT ); Mon, 25 Apr 2016 13:15:09 -0400 Date: Mon, 25 Apr 2016 18:15:06 +0100 From: Sean Young To: Wade Berrier Cc: linux-media@vger.kernel.org Subject: Re: mceusb xhci issue? Message-ID: <20160425171506.GA25277@gofer.mess.org> References: <20160425040632.GD15140@berrier.lan> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20160425040632.GD15140@berrier.lan> Sender: linux-media-owner@vger.kernel.org List-ID: On Sun, Apr 24, 2016 at 10:06:33PM -0600, Wade Berrier wrote: > Hello, > > I have a mceusb compatible transceiver that only seems to work with > certain computers. I'm testing this on centos7 (3.10.0) and fedora23 > (4.4.7). > > The only difference I can see is that the working computer shows > "using uhci_hcd" and the non working shows "using xhci_hcd". > > Here's the dmesg output of the non-working version: > > --------------------- > > [ 217.951079] usb 1-5: new full-speed USB device number 10 using xhci_hcd > [ 218.104087] usb 1-5: device descriptor read/64, error -71 > [ 218.371010] usb 1-5: config 1 interface 0 altsetting 0 endpoint 0x1 has an invalid bInterval 0, changing to 32 > [ 218.371019] usb 1-5: config 1 interface 0 altsetting 0 endpoint 0x81 has an invalid bInterval 0, changing to 32 That's odd. Can you post a "lsusb -vvv" of the device please? Thanks, Sean