camera

linux 基于frambuffer 的lcd 驱动

gspca.ko  v4lcap
# insmod gspca.ko
usbcore: registered new interface driver gspca
/usr/mykernel/qudong/shishidandan/gspcav1-20071224/gspca_core.c: gspca driver 01.00.20d# cat /proc/devices
Character devices:
  1 mem
  2 pty
  3 ttyp
  29 fb
 81 video4linuxv/////////////////////////////我的摄像头
 90 mtd
 99 ppdev
# mknod /dev/videolinux c 81 0
# ./v4lcap
video /dev/v4l/video0 caputure: 240x320
frame buffer: 240x320,  16bpp, 0x25800byte
v4l: open /dev/v4l/video0: No such file or directory////////////////////应用程序是这个，这样找 的设备
failed to open video for linux interface!
# mkdir /dev/v41///////////////////////////////////
# mknod /dev/v41/video0 c 81 1/////////////////////////////////////////////////////
# ./v4lcap
video /dev/v4l/video0 caputure: 240x320
frame buffer: 240x320,  16bpp, 0x25800byte
v4l: open /dev/v4l/video0: No such file or directory
failed to open video for linux interface!
# mknod /dev/v41/video0 c 81 0
mknod: /dev/v41/video0: File exists