Hi Hans, I have checked your work, and it works well, great :)
This is a little tweak,
--- /usr/local/etc/devd/webcamd.conf.orig 2010-01-22 13:19:20.371987293
+0900
+++ /usr/local/etc/devd/webcamd.conf 2010-01-22 13:52:00.286912793 +0900
@@ -1,5 +1,5 @@
attach 100 {
- device-name "ugen[0-9]+";
+ device-name "ugen[0-9.]+";
match "intclass" "(0x0e|0xff)";
action "/usr/local/etc/rc.d/webcamd start $device-name";
};
I want to know what does "intclass" mean. The webcamd(8) cannot
been engaged automatically by devd(8), because of not match of
"intclass".
when webcam device attached, cosole output:
Jan 22 13:50:26 parancell daichi: Unknown USB device: vendor 0x046d
product 0x09a2 bus uhub7
Jan 22 13:50:26 parancell kernel: ugen7.2: <vendor 0x046d> at usbus7
% sudo usbconfig -d ugen7.2
ugen7.2: <product 0x09a2 vendor 0x046d> at usbus7, cfg=0 md=HOST
spd=HIGH (480Mbps) pwr=ON
%
On 2010/01/10 22:37, Hans Petter Selasky wrote:
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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--
Daichi GOTO
81-42-316-7945 | [email protected] | http://www.ongs.co.jp
LinkedIn: http://linkedin.com/in/daichigoto
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