pwcview error when taking snapshots

Otacílio otacilio.neto at
Wed Dec 30 00:49:30 UTC 2015

Em 03/12/2015 08:26, Matthias Apitz escreveu:
> Hello,
> I wanted to use the cam of my netbook Acer C720 to take snapshots. The cam itself
> works (i.e. gives picture on the screen) with:
> $ pwcview -k
> Webcam set to: 320x240 (sif) at 5 fps
> but when I take snapshots it gives an error:
> $ pwcview -h -c 1 -o foo.jpg
> Webcam set to: 320x240 (sif) at 5 fps
> libv4l2: error turning on stream: Device not configured
> libv4l2: error reading: Invalid argument
> Error reading from webcam: Invalid argument
> $
> This is with 11-CURRENT r285885 amd64 and ports r392920 (around July this
> year).
> Any ideas?
> 	matthias

Dear Matthias

Sorry the delay to  reply. I tried the two commands that you send and it 
works fine. My system is:

FreeBSD Xbeaglebone 11.0-CURRENT FreeBSD 11.0-CURRENT #0 r292177M: Mon Dec 14 05:35:35 BRT 2015     ota at Xbeaglebone:/usr/obj/usr/src/sys/GENERIC  i386

and this machine is a guest running on Virtualbox.


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