linux-kernel - Re: high speed cams are not working on usbip

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Message-ID: <1326437687.12400.45.camel@linux-s257.site>
Date:	Fri, 13 Jan 2012 14:54:47 +0800
From:	joeyli <jlee@...e.com>
To:	David Chang <dchang@...e.com>
Cc:	linux-kernel@...r.kernel.org, gregkh@...e.de,
	devel@...verdev.osuosl.org, linux-usb@...r.kernel.org,
	nagarjun kommineni <nagarjunkommineni@...il.com>
Subject: Re: high speed cams are not working on usbip

Hi David, 

Per your experience, what is the limit resolution for playing smoothly.
Do you think this is relate to the protocol of usbip?


Thanks
Joey Lee

於 三，2012-01-11 於 18:05 +0530，nagarjun kommineni 提到：
> 
> Hi,
> I tested it on 3.1.4
> 
> 2012/1/11 nagarjun kommineni <nagarjunkommineni@...il.com>
>         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.
>         
>         
>         2012/1/10 David Chang <dchang@...e.com>
>                 Hi Joey,
>                 
>                 2012/1/10 joeyli <jlee@...e.com>:
>                 > 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@...r.kernel.org
>                 > More majordomo info at
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>                 > Please read the FAQ at  http://www.tux.org/lkml/
>         
>         
>         
>         
>         -- 
>         Regards,
>         Nagarjuna Kommineni.
>         
>         
> 
> 
> 
> -- 
> Regards,
> Nagarjuna Kommineni.
> 
> 


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