我们公司编写的CMOS CAMERA摄像头仅是一个简单的字符设备，它无法使用V4L接口编程，有国外的爱好者设计了标准接口的驱动，感兴趣的可以看看这里；
http://code.google.com/p/s3c2440camera/downloads/list

项目描述：

Implementation of Video 4 Linux interface for embedded systems based on Samsung S3C2440 CPU

Building & Installing

• obtain ARM-Linux GCC 4.3.2 and Linux 2.6.29 from FriendlyARM 
• setup environment variables CC,CPP etc, use this as a reference 
• compile linux kernel , without S3C2440_CAMERA ( find line CONFIG_S3C2440_CAMERA=y and replace with CONFIG_S3C2440_CAMERA=m) 
• install new kernel 
• compile new camera module , make KERNELDIR=<whenever you have linux kernel> 
• (optional) compile test program make test_capture 
• (optional) compile tiff capture program make tiff_capture TIFFDIR=<where you have libtiff> 
• copy kernel module s3c2440camera.ko to mini2440 
• load kernel module insmod s3c2440camera.ko 
• run the test capture program: ./test_capture /dev/video0 <width> <height> <filename base> [number of frames] 
• Output of a sample session:

[root@FriendlyARM /] insmod s3c2440camera.ko
  Loading OV9650 driver.........
SCCB address 0x60, manufacture ID 0x7FA2, expect 0x7FA2
SCCB address 0x60, product ID 0x9652, expect 0x9650
OV9650 setting format 1  640x480 126 parameters!
ov9650 init done!
[root@FriendlyARM /]# ./test_capture /dev/video0 640 480 test 10
   OV9650 setting format 0  1280x1024 125 parameters!
OV9650 setting format 1  640x480 126 parameters!
Goint to capture frames 640 x 480 format: 422P framesize: 614400
About to capture 10 images to test
**********
29.886700 fps, Saving collectected frames...
0       1       2       3       4       5       6       7       8       9      

"不过数据格式是YUV422的，有没有RGB888的"这句话是外行，camera的sensor一般是yuv422的,有的有rgb565的，就是没有rgb888。cmos sensor中基本都可以输出raw模式的。