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插上摄像头显示: 
usb 1-1: new full speed USB device using s3c2410-ohci and address 5 
usb 1-1: New USB device found, idVendor=6000, idProduct=8000 
usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=0 
usb 1-1: Product: USB2.0 Camera 
usb 1-1: Manufacturer: Etron Technology, Inc. 
usb 1-1: configuration #1 chosen from 1 choice 
uvcvideo: Found UVC 1.00 device USB2.0 Camera (6000:8000) 
uvcvideo: UVC non compliance - GET_DEF(PROBE) not supported. Enabling workaround. 
input: USB2.0 Camera as /devices/platform/s3c2410-ohci/usb1/1-1/1-1:1.0/input/input6 
但是在控制台输入usb_camera时显示: 
[root@EmbedSky /root]# usb_camera 
USB Camera Test 
set format failed 
是不是表示摄像头已经识别,但是无法显示呢? 
输入camera_test显示: 
[root@EmbedSky /root]# camera_test 
TQ2440 Camera Test Program, Start ! 
/dev/camera: No such device 
输入Webcam_USB显示: 
[root@EmbedSky /root]# WebCam_USB                    
MJPG-streamer [844]: starting application 
MJPG Streamer Version.: 2.0 
MJPG-streamer [844]: MJPG Streamer Version.: 2.0 
 
 i: Using V4L2 device.: /dev/video0 
MJPG-streamer [844]: Using V4L2 device.: /dev/video0 
 
 i: Desired Resolution: 640 x 480 
MJPG-streamer [844]: Desired Resolution: 640 x 480 
 
 i: Frames Per Second.: 5 
MJPG-streamer [844]: Frames Per Second.: 5 
 
 i: Format............: MJPEG 
MJPG-streamer [844]: Format............: MJPEG 
 
Unable to set format: Invalid argument 
 Init v4L2 failed !! exit fatal  
 i: init_VideoIn failed 
MJPG-streamer [844]: init_VideoIn failed 
 
[root@EmbedSky /root]#  |   
 
 
 
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