Re: [FreeBSD 8/9] USB webcamd and video4bsd: Call for testing

Hello,

I am unsure whether I missed anything so here is what I did
csup to 8_RELENG
rebuild kernel & world
portmanager webcamd (which built video4bsd also)
kldload video4bsd
webcamd
webcamd -d ugen0.2 -i 0 -v 0

but I get
Cannot open /dev/video_daemonX. Did you kldload video4bsd?


this is the relevant part from dmesg:
video4bsd: /dev/video0..9, /dev/video_daemon0..9
ugen0.2: <vendor 0x046d> at usbus0 (disconnected)
uaudio0: at uhub0, port 2, addr 2 (disconnected)
pcm2: detached
ugen0.2: <vendor 0x046d> at usbus0
uaudio0: <vendor 0x046d product 0x08d7, class 0/0, rev 1.10/1.00, addr 2> 
on usbus0
uaudio0: No playback!
uaudio0: Record: 16000 Hz, 1 ch, 16-bit S-LE PCM format
uaudio0: No midi sequencer
pcm2: <USB audio> on uaudio0

what am I missing? The device is supported on linux by the gspca driver.

Regards

Christof


Am Sonntag 10 Januar 2010 14:37:37 schrieb Hans Petter Selasky:
> Hi,
> 
> During the last couple of days I've spent some time to finish my webcam
> daemon. My webcam daemon is basically an application which consists of
> userspace Video4Linux USB webcam drivers and some uLinux glue code which
>  links with libc, pthreads and libusb. The webcamd talks to
>  /dev/video_daemonX which is provided by the video4bsd kernel module. 
There
>  is full support for mmap/read/write/open/close. poll is not supported.
> 
> Basic operation and idea:
> 
> /dev/video_daemonX is the interface for the webcamd. /dev/videoX is the
> interface for the V4L application. The video4bsd transports all data
>  between these two devices. In the case the V4L application is using 
mmap,
>  no data is copied due to shared kernel memory buffer!
> 
> Licensing issues:
> 
> Effectivly the webcamd userland program becomes GPL'ed due to the V4L 
USB
> drivers which are GPL licensed. Some files inside the webcamd remains 
BSD
> licensed which allows for building similar BSD licensed daemons.
> 
> The rest of the code is BSD licensed.
> 
> Source code:
> 
> 1) FreeBSD 8-stable
> 
> 2) Apply the patch below and re-install libusb in /usr/src/lib/libusb:
> 
> http://p4web.freebsd.org/chv.cgi?CH=172876
> 
> http://perforce.freebsd.org/chv.cgi?CH=172876
> 
> 3) Compile ulinux (webcamd + libv4l + pwcview) and video4bsd (must be
>  checked out in the same folder due to dependencies)
> 
> svn --username anonsvn --password anonsvn \
>       checkout svn://svn.turbocat.net/i4b/trunk/usbcam/video4bsd
> 
> make all install
> kldload video4bsd
> 
> svn --username anonsvn --password anonsvn \
>       checkout svn://svn.turbocat.net/i4b/trunk/usbcam/ulinux
> 
> make fetch
> make patch
> make all
> make install
> 
> # this will attach to the first detected webcam:
> ./webcamd
> 
> # this will try to attach to the given USB unit, interface and V4B unit.
> ./webcamd -d ugen4.1 -i 0 -v 0
> 
> # this will display webcam contents from /dev/video0 by default.
> ./pwcview/pwcview
> 
> Feedback and bug reports are welcome.
> 
> Yes, I am working on getting this into ports!
> 
> Known issues:
> 
> 1) If you detach the USB webcam you need to manually restart the 
webcamd.
> 
> --HPS
> 
> Support: I will be available at #bsdusb on efnet during the day.
> _______________________________________________
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