From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754877Ab2BBDAr (ORCPT ); Wed, 1 Feb 2012 22:00:47 -0500 Received: from mail-gy0-f174.google.com ([209.85.160.174]:60284 "EHLO mail-gy0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753586Ab2BBDAq convert rfc822-to-8bit (ORCPT ); Wed, 1 Feb 2012 22:00:46 -0500 MIME-Version: 1.0 In-Reply-To: References: <1326192547.11926.5.camel@linux-s257.site> Date: Thu, 2 Feb 2012 11:00:45 +0800 X-Google-Sender-Auth: HILj671wRdExRRCYLqnp825xQnE Message-ID: Subject: Re: high speed cams are not working on usbip From: David Chang To: nagarjun kommineni Cc: joeyli , linux-kernel@vger.kernel.org, gregkh@suse.de, devel@driverdev.osuosl.org, linux-usb@vger.kernel.org Content-Type: text/plain; charset=Big5 Content-Transfer-Encoding: 8BIT Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi, 在 2012年1月30日下午8:58，nagarjun kommineni 寫道： > > Hi, > > I found that, beyond the resolution 352*288, network utilisation is beyond > 100Mbps. > If I remember correctly, the usbip sugget using gigabit ethernet. Since the maximum speed of usb 2.0 is 480Mb/s bigger than 100Mbps. Regards, David > > 2012/1/20 nagarjun kommineni >> >> Hi, >> >> I think we need to increase the depth of video buffers in UVC subsystem. >> >> >> On 1/16/12, nagarjun kommineni wrote: >> > Hi, >> > >> > Both server and client are working at 100Mbps. >> > >> > On 1/16/12, David Chang wrote: >> >> Hi, >> >> >> >> 在 2012年1月11日下午3:47，nagarjun kommineni 寫道： >> >>> hi, >> >>> these are the my test specifications. >> >>> >> >>> OS: Scientific Linux 6.1 (default kernel 2.6.32) >> >>> Kernel: 3.1.4 (I have built it) >> >>> Web Cam: Logitech Pro 9000 >> >>> Test App: Gstreamer >> >>> >> >>> To see the web cam output I have used the Gstreamer with the >> >>> following >> >>> command. >> >>> gst-launch v4l2src ! >> >>> video/x-raw-yuv,width=160,height=120,framerate=15/1 >> >>> ! >> >>> ffmpegcolorspace ! autovideosink >> >>> >> >>> my cam supported resloutions are 160*120, 176*144, 320*240, 352*288, >> >>> 640*480, 800*600, 960*720, 1600*1200. >> >>> >> >>> it works fine upto 320*240, beyond this it doesn't work. >> >> >> >> What's the speed of server and client network interface? >> >> >> >> David >> >>> >> >>> >> >>> 2012/1/10 David Chang >> >>>> >> >>>> Hi Joey, >> >>>> >> >>>> 2012/1/10 joeyli : >> >>>> > 於 二，2012-01-10 於 13:46 +0530，nagarjun kommineni 提到： >> >>>> >> Hi, >> >>>> >> >> >>>> >> problem with usbip in drivers/staging/usbip >> >>>> >> >> >>>> >> I have configured one pc as server and one as client, with this >> >>>> >> configuration high speed web cams are not working for higher >> >>>> >> resolutions. >> >>>> >> >> >>>> > >> >>>> > How "high" does this web's speed? >> >>>> > >> >>>> >> please have a look at this problem. >> >>>> >> >> >>>> > >> >>>> > David, >> >>>> > as I remember you test webcam in old kernel before? looks works >> >>>> > fine. >> >>>> >> >>>> Yes, but I would suggest using lower resolution. >> >>>> >> >>>> Regards, >> >>>> David >> >>>> > >> >>>> > >> >>>> > Thanks >> >>>> > Joey Lee >> >>>> > >> >>>> > >> >>>> > -- >> >>>> > To unsubscribe from this list: send the line "unsubscribe >> >>>> > linux-kernel" >> >>>> > in >> >>>> > the body of a message to majordomo@vger.kernel.org >> >>>> > More majordomo info at http://vger.kernel.org/majordomo-info.html >> >>>> > Please read the FAQ at http://www.tux.org/lkml/ >> >>> >> >>> >> >>> >> >>> >> >>> -- >> >>> Regards, >> >>> Nagarjuna Kommineni. >> >>> >> >>> >> >> >> > >> > >> > -- >> > Regards, >> > Nagarjuna Kommineni. >> > >> >> >> -- >> Regards, >> Nagarjuna Kommineni. > > > > > -- > Regards, > Nagarjuna Kommineni. > >