From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id BB015C433F5 for ; Sun, 30 Jan 2022 18:13:00 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236788AbiA3SM7 (ORCPT ); Sun, 30 Jan 2022 13:12:59 -0500 Received: from mx1.librem.one ([138.201.176.93]:57648 "EHLO mx1.librem.one" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233487AbiA3SM7 (ORCPT ); Sun, 30 Jan 2022 13:12:59 -0500 Received: from smtp.librem.one (unknown [192.241.214.14]) by mx1.librem.one (Postfix) with ESMTPS id D756F81E79; Sun, 30 Jan 2022 10:12:56 -0800 (PST) Authentication-Results: name mx1.librem.one; dmarc=fail (p=none dis=none) header.from=librem.one Authentication-Results: mx1.librem.one; dkim=pass (2048-bit key; unprotected) header.d=librem.one header.i=@librem.one header.b="VNPo1Roo"; dkim-atps=neutral Subject: Re: Get j5 WebCam JVCU100 supported by Linux UVC driver DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=librem.one; s=smtp; t=1643566374; bh=qgfa7HdMHVnXikJUOCJHojLNv9aoPp/DLUl1/NiCyOw=; h=Subject:To:Cc:References:From:Date:In-Reply-To:From; b=VNPo1RooxaP3eUTx6t1txIoSrBJASGTlTeLm9gXyNC+pJpP5XITTeop5pABPw4DJs kjkH2jxcvb/7xPu0u+T2WBzxK9CDSypX9hMsXu0YrqnGeXHh11VcJrxhldZEXZfhVg vGc2KKk2tvZKRzceSmpt77HUf8srsTqYUdwyUM2u1QJ5xyEch97yvgsKFFE/upA7bI 5uD788XVHAbtuS/6vIO9h7/GLNGK5ZHE66uSqgpGEFg7Z+5KpchoJmF/+ncnGgSqlr iEVLjJ3R+ps0UWlC0OHqk9ObBpHhiBgnk/BsprRxpVW5nHbtg2cKuL1tZwjHmIvcei 72DJBc1iLQoag== To: Laurent Pinchart , Ricardo Ribalda Cc: linux-media@vger.kernel.org References: From: Mohammad Message-ID: <38609c2c-8b15-4aa1-a1a1-c219d4ff4e83@librem.one> Date: Sun, 30 Jan 2022 12:12:53 -0600 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.14.0 In-Reply-To: Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit Content-Language: en-US Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org Is there a way around this problem?  Would I have to reach out to the device manufacturer? On 1/28/22 4:47 AM, Laurent Pinchart wrote: > On Fri, Jan 28, 2022 at 09:31:43AM +0100, Ricardo Ribalda wrote: >> I received out of list the dmesg output from Mohammad >> >> It looks like a hardware error to me: >> >> [ 48.729618] iTCO_wdt: unable to reset NO_REBOOT flag, device disabled by hardware/BIOS >> [ 48.749361] uvcvideo: Found UVC 1.00 device j5 WebCam JVCU100 (0711:3108) >> [ 48.751876] uvcvideo: Failed to query (129) UVC probe control : -32 (exp. 26). > A GET_CUR failure on the video probe control is indeed fairly bad. If I > had to guess, I would suspect either an issue at the USB level, or a > firmware bug in the webcam. > >> [ 48.751879] uvcvideo: Failed to initialize the device (-5). >> [ 48.751930] usbcore: registered new interface driver uvcvideo >> >> >> On Wed, 26 Jan 2022 at 17:23, Ricardo Ribalda wrote: >>> Hi Mohammad >>> >>> Could you share the output of dmesg when you connect the device? >>> >>> And also lsusb -vvvv -d 0711:3108 >>> >>> >>> Thanks! >>> >>> On Wed, 26 Jan 2022 at 17:20, Mohammad wrote: >>>> Greetings, >>>> >>>> I have been trying to use the j5 WebCam JVCU100 on Linux and it doesn't >>>> function properly. Cheese cannot seem to find it, and I did not see it >>>> listed on your list of supported devices, so I thought I would bring it >>>> to your attention. Here is what I see from running lsusb: >>>> >>>> Bus 001 Device 006: ID 0711:3108 Magic Control Technology Corp. j5 >>>> WebCam JVCU100 >>>> >>>> Also, running lsusb -d 0711:3108 -v | grep "14 Video" returns >>>> >>>> Couldn't open device, some information will be missing >>>> bFunctionClass 14 Video >>>> bInterfaceClass 14 Video >>>> bInterfaceClass 14 Video >>>> bInterfaceClass 14 Video >>>> bInterfaceClass 14 Video >>>> >>>> So, looks like the Linux UVC driver at least recognizes the webcam. >>>> Please let me know if you can help with this, thanks! >>>> >>>> Regards, >>>> >>>> Mohammad