Date: Tue, 12 Jan 2010 10:07:40 +0100 From: Henri Hennebert <hlh@restart.be> To: Hans Petter Selasky <hselasky@c2i.net>, freebsd-current@freebsd.org Subject: Re: [FreeBSD 8/9] USB webcamd and video4bsd: Call for testing Message-ID: <4B4C3BDC.4000104@restart.be> In-Reply-To: <4B4B7523.6060409@restart.be> References: <201001101437.37269.hselasky@c2i.net> <4B4B7523.6060409@restart.be>
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On 01/11/2010 19:59, Henri Hennebert wrote: > On 01/10/2010 14:37, 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. >> > I try on a Fujitsu M2010: > > FreeBSD meribel.restart.bel 8.0-RELEASE-p2 FreeBSD 8.0-RELEASE-p2 #0 > r201748M: Thu Jan 7 16:23:56 CET 2010 > root@meribel.restart.bel:/usr/obj/usr/src/sys/MERIBEL i386 > > [root@meribel ~]# usbconfig > ugen0.1: <UHCI root HUB Intel> at usbus0, cfg=0 md=HOST spd=FULL > (12Mbps) pwr=ON > ugen1.1: <UHCI root HUB Intel> at usbus1, cfg=0 md=HOST spd=FULL > (12Mbps) pwr=ON > ugen2.1: <UHCI root HUB Intel> at usbus2, cfg=0 md=HOST spd=FULL > (12Mbps) pwr=ON > ugen3.1: <EHCI root HUB Intel> at usbus3, cfg=0 md=HOST spd=HIGH > (480Mbps) pwr=ON > ugen3.2: <USB Webcam QCM> at usbus3, cfg=0 md=HOST spd=HIGH (480Mbps) > pwr=ON > ugen0.2: <product 0x1133 vendor 0x04d9> at usbus0, cfg=0 md=HOST spd=LOW > (1.5Mbps) pwr=ON > ugen1.2: <product 0x6216 vendor 0x18e8> at usbus1, cfg=0 md=HOST > spd=FULL (12Mbps) pwr=ON > ugen3.3: <USB2.0-CRW Generic> at usbus3, cfg=0 md=HOST spd=HIGH > (480Mbps) pwr=ON > [root@meribel ~]# /home/meribel/webcam/ulinux/webcamd -d ugen3.2 -i 0 -v 0 > KrefGet: 0x34028404 = 1 > KrefGet: 0x34028404 = 2 > KrefGet: 0x3402860c = 1 > KrefGet: 0x340286c8 = 1 > Added device 0x33f18b04 > KrefGet: 0x33f18b08 = 1 > KrefGet: 0x33f18b08 = 2 > > [root@meribel ~]# chmod 666 /dev/video* /dev/usb/* > > [hlh@meribel ~]$ pwcview > Webcam set to: 320x240 (sif) at 5 fps > > Give me a green window for some time and then this picture: > > http://verbier.restart.be/xfer/Screenshot-pwcview.png > > which stay still. > > I can't kill pwcview window. > Better news... I try on the same config an external webcam (Logitech QuickCam Messenger) [root@meribel ulinux]# usbconfig ugen0.1: <UHCI root HUB Intel> at usbus0, cfg=0 md=HOST spd=FULL (12Mbps) pwr=ON ugen1.1: <UHCI root HUB Intel> at usbus1, cfg=0 md=HOST spd=FULL (12Mbps) pwr=ON ugen2.1: <UHCI root HUB Intel> at usbus2, cfg=0 md=HOST spd=FULL (12Mbps) pwr=ON ugen3.1: <EHCI root HUB Intel> at usbus3, cfg=0 md=HOST spd=HIGH (480Mbps) pwr=ON ugen3.2: <USB Webcam QCM> at usbus3, cfg=0 md=HOST spd=HIGH (480Mbps) pwr=ON ugen0.2: <product 0x1133 vendor 0x04d9> at usbus0, cfg=0 md=HOST spd=LOW (1.5Mbps) pwr=ON ugen1.2: <product 0x6216 vendor 0x18e8> at usbus1, cfg=0 md=HOST spd=FULL (12Mbps) pwr=ON ugen3.3: <USB2.0-CRW Generic> at usbus3, cfg=0 md=HOST spd=HIGH (480Mbps) pwr=ON ugen0.3: <Camera vendor 0x046d> at usbus0, cfg=0 md=HOST spd=FULL (12Mbps) pwr=ON [root@meribel ulinux]# ./webcamd -d ugen0.3 -i 0 -v 0 KrefGet: 0x34028904 = 1 Added device 0x33fdf304 KrefGet: 0x33fdf308 = 1 KrefGet: 0x33fdf308 = 2 KrefPut: 0x33fdf308 = 2 And pwcview work perfectly :-) Henri
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