patch-2.4.17 linux/Documentation/video4linux/w9966.txt

• Lines: 56
• Date: Fri Dec 21 16:40:32 2001
• Orig file: linux-2.4.16/Documentation/video4linux/w9966.txt
• Orig date: Wed Jul 4 21:41:33 2001

diff -Naur -X /home/marcelo/lib/dontdiff linux-2.4.16/Documentation/video4linux/w9966.txt linux/Documentation/video4linux/w9966.txt
@@ -1,37 +1,33 @@
+W9966 Camera driver, written by Jakob Kemi (jakob.kemi@telia.com)
 
-W9966 Camera driver, written by Jakob Kemi (jakob.kemi@post.utfors.se)
+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.
 
-Ok, after a lot of work in softice, wdasm, reading pdf-files
-and trial-and-error work I've finally got everything to work.
-Since I needed some vision for a robotics project I borrowed
-this camera from a friend and started hacking. Anyway I've
-converted my original code from the AVR 8bit RISC C/asm
-into a working linux driver. I would really appreciate _any_
-kind of feedback regarding this driver.
-
-To get it working quickly configure your kernel
-to support parport, ieee1284, video4linux, experimental drivers
-and w9966
+To get it working simply configure your kernel to support
+parport, ieee1284, video4linux and w9966
 
-If w9966 is statically linked it will perform aggressive probing
-for the camera. If built as a module you'll have more configuration options.
+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)
- 
+ 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)
 
-I've only tested it with custom built testprograms
-(http://hem.fyristorg.com/mogul/w9966.html) and with gqcam.
-(you'll need to tweak the code to qcam a bit to make it work,
-dimensions and such)
+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://hem.fyristorg.com/mogul/w9966.html
 
 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
+    /Jakob Kemi