Re: webcam "no space left on device" error

[Gerard Klaver <gerard@gkall.hobby.nl>]

On Sun, 2006-12-17 at 18:11 -0600, Seb wrote:
> Hi,
> 
> Details on my webcam and where I have it attached are:
> 
> 
> ,-----[ lsusb ]
> | Bus 002 Device 001: ID 0000:0000  
> | Bus 001 Device 005: ID 0461:4d16 Primax Electronics, Ltd 
> | Bus 001 Device 003: ID 045e:00db Microsoft Corp. 
> | Bus 001 Device 004: ID 058f:9360 Alcor Micro Corp. 
> | Bus 001 Device 006: ID 0c45:6029 Microdia Triplex i-mini PC Camera
> | Bus 001 Device 002: ID 04e8:324c Samsung Electronics Co., Ltd ML-1740 Printer
> | Bus 001 Device 001: ID 0000:0000  
> `-----
> 
> 
> Standard video conference software, e.g. kopete, ekiga, cannot communicate
> with this webcam and show a "no device found" message (ekiga), but no
> other useful error messages.  I was able to get something with the program
> sn-webcam (http://sourceforge.net/project/showfiles.php?group_id=132181),
> but all I got was a "no space left on device" message.  Googling for this,
> it seemed it had to do with the bus device being saturated by the other
> usb devices.  So I tried plugging the webcam to one of the ports in the
> front panel of my desktop or the back, without success -- I think Bus 001
> above is the back one, while Bus 002 is the front one.
> 
> If I unplug the webcam from the bus shown above, dmesg gives some lines
> with errors:
> 
> 
> ,-----[ dmesg | tail ]
> | ohci_hcd 0000:00:0b.0: leak ed ffff810074c5a370 (#81) state 2
> | usb 1-8: usb_submit_urb() failed, error -28
> | ohci_hcd 0000:00:0b.0: leak ed ffff810074c5a3c0 (#81) state 2
> | usb 1-8: usb_submit_urb() failed, error -28
> | ohci_hcd 0000:00:0b.0: leak ed ffff810074c5a410 (#81) state 2
> | usb 1-8: usb_submit_urb() failed, error -28
> | usb 1-8: USB disconnect, address 6
> | ohci_hcd 0000:00:0b.0: leak ed ffff810074c5a460 (#81) state 2
> | usb 1-8: Disconnecting SN9C10x PC Camera...
> | usb 1-8: V4L2 device /dev/video0 deregistered
> `-----
> 
> 
> and reconnecting causes the system to freeze completely.  This camera uses
> the sn9c102 driver and it does seem to be loaded:
> 
> 
> ,-----[ lsmod | grep 'sn9c' ]
> | sn9c102                94732  0 
> | videodev               29696  1 sn9c102
> | v4l2_common            28672  2 sn9c102,videodev
> `-----
> 
> 
> Is anybody having similar problems?  Any pointers?  Thanks in advance.
> 
> 
> Cheers,
> 
> -- 
> Seb
> 
> 
The sn9c10x kernel modulue is voor v4l2 supported frontends, see this
page http://bertrik.sikken.nl/webcam/index.html for some info and links

For a v4l kernel module check this page,
http://mxhaard.free.fr/download.html

Most frontends which you mentioned are v4l at this moment.

-- 
--------
m.vr.gr.
Gerard Klaver