From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from lists.gentoo.org (pigeon.gentoo.org [208.92.234.80]) by finch.gentoo.org (Postfix) with ESMTP id C4ECA1389E2 for ; Mon, 22 Dec 2014 02:48:50 +0000 (UTC) Received: from pigeon.gentoo.org (localhost [127.0.0.1]) by pigeon.gentoo.org (Postfix) with SMTP id 6AC74E085C; Mon, 22 Dec 2014 02:48:45 +0000 (UTC) Received: from mail146c7.megamailservers.com (mail767.megamailservers.com [69.49.98.77]) (using TLSv1.1 with cipher ECDHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by pigeon.gentoo.org (Postfix) with ESMTPS id 57237E07AE for ; Mon, 22 Dec 2014 02:48:44 +0000 (UTC) X-VIP: 69.49.109.100 Received: from syscon7.localdomain (S01060050da7ae68c.ed.shawcable.net [68.149.90.13]) by mail146c7.megamailservers.com (8.13.6/8.13.1) with ESMTP id sBM2mf7I028679 for ; Sun, 21 Dec 2014 21:48:43 -0500 Received: by syscon7.localdomain (Postfix, from userid 1000) id 20AF72006CB; Sun, 21 Dec 2014 19:49:01 -0700 (MST) Date: Sun, 21 Dec 2014 19:49:01 -0700 From: Joseph To: gentoo-user@lists.gentoo.org Subject: Re: [gentoo-user] webcam on Gentoo Logitech C270 Message-ID: <20141222024901.GB4154@syscon7> References: <20141221165128.GA4092@syscon7> <20141221170040.GB4092@syscon7> <20141221183211.7aabb7d4@hal9000.localdomain> <20141221175643.GB14158@solfire> <20141221182218.GA4071@syscon7> <20141221184910.GA3912@syscon7> Precedence: bulk List-Post: List-Help: List-Unsubscribe: List-Subscribe: List-Id: Gentoo Linux mail X-BeenThere: gentoo-user@lists.gentoo.org Reply-to: gentoo-user@lists.gentoo.org MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.22 (2013-10-16) X-CTCH-RefID: str=0001.0A020205.5497868C.00C4,ss=1,re=0.000,recu=0.000,reip=0.000,cl=1,cld=1,fgs=0 X-CTCH-VOD: Unknown X-CTCH-Spam: Unknown X-CTCH-Score: 0.000 X-CTCH-Rules: X-CTCH-Flags: 0 X-CTCH-ScoreCust: 0.000 X-CSC: 0 X-CHA: v=2.1 cv=Tqzf2lnh c=1 sm=1 tr=0 a=C3ZDv51cNVt4vJz/79I2xQ==:117 a=C3ZDv51cNVt4vJz/79I2xQ==:17 a=SDcUNfBxAAAA:8 a=BDKbP5mgAAAA:8 a=Unq3plm5DvEA:10 a=M1kyBYkWWGkA:10 a=8nJEP1OIZ-IA:10 a=pGLkceISAAAA:8 a=A92cGCtB03wA:10 a=9I5xiGouAAAA:8 a=Wi4WY7_9TdKXDA12GTgA:9 a=wPNLvfGTeEIA:10 X-Origin-Country: CA X-Archives-Salt: c0a5aae7-85b7-40ee-85d1-b8dee2fa93fb X-Archives-Hash: 9b0e34758b141b2a6f86b2bfff346820 On 12/21/14 22:08, Alexander Kapshuk wrote: > grep '^CONFIG.*V4L' /usr/src/linux/.config > CONFIG_VIDEO_V4L2=m > CONFIG_V4L_PLATFORM_DRIVERS=y > CONFIG_MEDIA_SUPPORT=m > CONFIG_USB_VIDEO_CLASS=m > CONFIG_USB_VIDEO_CLASS_INPUT_EVDEV=y > CONFIG_USB_GSPCA=m > CONFIG_MEDIA_PCI_SUPPORT=y > grep -s ^LD_PRELOAD .* > .bash_profile:LD_PRELOAD=/usr/lib/libv4l/v4l2convert.so > Also, you may want to try plugging you webcam into a USB2 port, if > available, instead of a USB3 one, as suggested here, > [6]http://linux-kernel.2935.n7.nabble.com/3-15-8-USB-issue-with-uvc-cam > -td920378.html. > Hope this helps. When I try to run: guvcview I get: guvcview 1.6.1 ALSA lib /var/tmp/portage/media-libs/alsa-lib-1.0.28/work/alsa-lib-1.0.28/src/pcm/pcm.c:2239:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.rear ALSA lib /var/tmp/portage/media-libs/alsa-lib-1.0.28/work/alsa-lib-1.0.28/src/pcm/pcm.c:2239:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.center_lfe ALSA lib /var/tmp/portage/media-libs/alsa-lib-1.0.28/work/alsa-lib-1.0.28/src/pcm/pcm.c:2239:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.side ALSA lib /var/tmp/portage/media-libs/alsa-lib-1.0.28/work/alsa-lib-1.0.28/src/pcm/pcm_route.c:947:(find_matching_chmap) Found no matching channel map video device: /dev/video0 ERROR opening V4L2 interface for /dev/video0 unable to detect video devices on your system (0) ERROR opening V4L interface: Permission denied Init video returned -1 VIDIOC_REQBUFS - Failed to delete buffers: Inappropriate ioctl for device (errno 25) cleaned allocations - 100% Closing portaudio ...OK -- Joseph