From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from mail-ee0-f45.google.com ([74.125.83.45]:64665 "EHLO mail-ee0-f45.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751374AbaAOVgw (ORCPT ); Wed, 15 Jan 2014 16:36:52 -0500 Message-ID: <52D6FFA8.8060008@googlemail.com> Date: Wed, 15 Jan 2014 22:37:44 +0100 From: =?UTF-8?B?RnJhbmsgU2Now6RmZXI=?= MIME-Version: 1.0 To: keith.lawson@libertas-tech.com CC: linux-media@vger.kernel.org, linux-media-owner@vger.kernel.org Subject: Re: Support for Empia 2980 video/audio capture chip set References: <1ed89f5b0a32bf26e17cee890a26b012@www.nowhere.ca> <52D2C929.9080109@googlemail.com> In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-media-owner@vger.kernel.org List-ID: Am 14.01.2014 01:48, schrieb Keith Lawson: > On 2014-01-12 11:56, Frank Schäfer wrote: > >> On 09.01.2014 02:02, Keith Lawson wrote: >> >>> Hello, I sent the following message to the linux-usb mailing list >>> and they suggested I try here. I'm trying to get a "Dazzle Video >>> Capture USB V1.0" video capture card working on a Linux device but >>> it doesn't >>> look like the chip set is supported yet. I believe this card is the >>> next version of the Pinnacle VC100 capture card that worked with the >>> em28xx kernel module. The hardware vendor that sold the card says that >>> this device has an Empia 2980 chip set in it so I'm inquiring about >>> support for that chip set. I'm just wondering about the best >>> approach for getting the new chip supported in the kernel. Is this >>> something the >>> em28xx maintainers would naturally address in time or can I assist >>> in getting this into the kernel? Here's dmesg from the Debian box >>> I'm working on: [ 3198.920619] usb 3-1: new high-speed USB device >>> number 5 >>> usingxhci_hcd [ 3198.939394] usb 3-1: New USB device found, >>> idVendor=1b80,idProduct=e60a [ 3198.939399] usb 3-1: New USB device >>> strings: Mfr=0, Product=1,SerialNumber=2 [ 3198.939403] usb 3-1: >>> Product: Dazzle >>> Video Capture USB Audio Device [ 3198.939405] usb 3-1: SerialNumber: >>> 0 l440:~$ uname -a Linux l440 3.10-3-amd64 #1 SMP Debian 3.10.11-1 >>> (2013-09-10) x86_64 GNU/Linux If this isn't the appropriate list to ask >>> this question please point me in the right direction. Thanks, Keith >> >> >> The em28xx is indeed the dedicated driver for this device, but it's hard >> to say how much work would be necessary to add support for it. >> We currently don't support any em29xx chip yet, but in theory it is just >> an extended em28xx device. >> Whatever that means when it comes to the low level stuff... ;) >> > > What's the best route to get support for this chip added then? Should > I start working on a patch myself or will this just happen during the > course of development of the em28xx module? I'm a developer but > haven't done any kernel hacking so this would likely be a steep > learning curve for me. Can you create USB-Traces of the Windows driver and send us the output of "lsusb -v -d 1b80:e60a" for this device ? That will give us a hint how much work will be needed. Regards, Frank