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Terratec Grabby

DISCUSSION Devin Heitmueller 1 participant 1 message Jul 18, 2009 1 message not in the archive Media (V4L/DVB)

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Quoted 21 lines · Alina Friedrichsen

Hello,

how to solve the following kernel error message?

Quoted 1 line

em28xx #0: vidioc_s_fmt_vid_cap queue busy

I want watch TV with the good old xawtv of Debian lenny with linux 2.6.31-rc3-git3 and the current driver of the v4l-dvb git repository.

When I want to use the vlc for it then get the following error messages:

[0x1ce7848] v4l2 access debug: opening device '/dev/video0'
[0x1ce7848] v4l2 access debug: V4L2 device: Terratec Grabby using driver: em28xx (version: 0.1.2) on usb-0000:00:1d.7-1 [0x1ce7848] v4l2 access debug: the device has the capabilities: (X) Video Capure, (X) Audio, ( ) Tuner [0x1ce7848] v4l2 access debug: supported I/O methods are: (X) Read/Write, (X) Streaming, ( ) Asynchronous [0x1ce7848] v4l2 access debug: video input 0 (Composite1) has type: External analog input [0x1ce7848] v4l2 access debug: video input 1 (S-Video) has type: External analog input *
[0x1ce7848] v4l2 access error: cannot get video input characteristics (Das Argument ist ungültig) [0x1ce7848] main access warning: no access module matching "v4l2" could be loaded
[0x1ce7848] main access debug: TIMER module_need() : 611.941 ms - Total 611.941 ms / 1 intvls (Avg 611.941 ms) [0x1f64538] main input error: open of `v4l2://' failed: (null)

Quoted 9 lines

Thanks!

Regards
Alina

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Hello Alina,

Generally speaking, questions like this are best sent to the linux-media mailing list.

That said, it looks like your kernel build might have a problem and may not have all the required modules. Did you build the kernel yourself from source?

I would have to look at the source to better understand the source of that particular error. Could you please provide the full dmesg output?

Devin

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Devin J. Heitmueller - Kernel Labs
http://www.kernellabs.com