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- W9966 Camera driver, written by Jakob Kemi (jakob.kemi@telia.com)
- After a lot of work in softice & wdasm, reading .pdf-files and tiresome
- trial-and-error work I've finally got everything to work. I needed vision for a
- robotics project so I borrowed this camera from a friend and started hacking.
- Anyway I've converted my original code from the AVR 8bit RISC C/ASM code into
- a working Linux driver.
- To get it working simply configure your kernel to support
- parport, ieee1284, video4linux and w9966
- If w9966 is statically linked it will always perform aggressive probing for
- the camera. If built as a module you'll have more configuration options.
- Options:
- modprobe w9966.o pardev=parport0(or whatever) parmode=0 (0=auto, 1=ecp, 2=epp)
- voila!
- you can also type 'modinfo -p w9966.o' for option usage
- (or checkout w9966.c)
- The only thing to keep in mind is that the image format is in Y-U-Y-V format
- where every two pixels take 4 bytes. In SDL (www.libsdl.org) this format
- is called VIDEO_PALETTE_YUV422 (16 bpp).
- A minimal test application (with source) is available from:
- http://www.slackwaresupport.com/howtos/Webcam-HOWTO
- The slow framerate is due to missing DMA ECP read support in the
- parport drivers. I might add working EPP support later.
- Good luck!
- /Jakob Kemi
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