插入USB摄像头，

$ dmesg

Linux video capture interface: v2.00

zc0301: V4L2 driver for ZC0301[P] Image Processor and Control Chip v1:1.05

usb 1-2: ZC0301[P] Image Processor and Control Chip detected (vid/pid 0x0AC8/0x301B)

usb 1-2: No supported image sensor detected

usbcore: registered new driver zc0301

$ lsusb

Bus 001 Device 005: ID 0ac8:301b Z-Star Microelectronics Corp. ZC0301 WebCam

Bus 001 Device 004: ID 0bda:8150 Realtek Semiconductor Corp. RTL8150 Fast Ethernet Adapter

Bus 001 Device 002: ID 0ace:1215 ZyDAS

Bus 001 Device 001: ID 0000:0000

ZC0301 WebCam就是我们USB摄像头的芯片，内核是有驱动支持的。

drivers/media/video/zc0301/, 支持V4L2.

$ apt-get install spca5xx-source

[确认源:

deb etch main contrib non-free

deb-src etch main contrib non-free

]

看看源码放在哪里拉

$ dpkg -L  spca5xx-source

/.

/usr

/usr/src

/usr/src/spca5xx-source.tar.bz2

/usr/share

/usr/share/doc

/usr/share/doc/spca5xx-source

/usr/share/doc/spca5xx-source/README-SONIX

/usr/share/doc/spca5xx-source/README-TV8532

/usr/share/doc/spca5xx-source/RGB-YUV%2fmodule-setting

/usr/share/doc/spca5xx-source/README.Debian

/usr/share/doc/spca5xx-source/copyright

/usr/share/doc/spca5xx-source/changelog.gz

/usr/share/doc/spca5xx-source/README.gz

/usr/share/doc/spca5xx-source/changelog.Debian.gz

/usr/share/modass

/usr/share/modass/overrides

/usr/share/modass/overrides/spca5xx-source

$ cd /usr/src

$ tar jxf spca5xx-source.tar.bz2

$ cd modules/spca5xx/

参考INSTALL文件，

$ make clean

$ make

$ make install

加载模块，

$ modprobe  spca5xx

$ lsmod | grep sp

spca5xx               642544  0

videodev               21120  2 spca5xx,zc0301

pcspkr                  3072  0

usbcore               112644  7 spca5xx,zc0301,zd1211b,rtl8150,usbhid,ohci_hcd

[pcspkr是在modprobe之前原来就有的]

这个时候/dev/video0就建好了。

安装一个应用程序，

$ apt-get install camorama

运行camorama，就可以看到了。

参考：

http://blog.chinaunix.net/u/7667/showart_74010.html

另外： 换另一个摄像头(芯片sn9c101)，因为装过了spca驱动，所以这次可以直接用了。

下面是插拔时dmesg的信息。

usb 1-2: new full speed USB device using ohci_hcd and address 4

usb 1-2: configuration #1 chosen from 1 choice

Linux video capture interface: v2.00

/usr/src/modules/spca5xx/drivers/usb/spca5xx.c: USB SPCA5XX camera found. SONIX sn9c101 +Tas 5110

/usr/src/modules/spca5xx/drivers/usb/spca5xx.c: [spca5xx_probe:5480] Camera type SN9C

/usr/src/modules/spca5xx/drivers/usb/spca5xx.c: [spca5xx_getcapability:1765] maxw 352 maxh 288 minw 160 minh 120

usbcore: registered new driver spca5xx

/usr/src/modules/spca5xx/drivers/usb/spca5xx.c: spca5xx driver 00.60.00 registered

sn9c102: V4L2 driver for SN9C10x PC Camera Controllers v1:1.27

usbcore: registered new driver sn9c102

usb 1-2: USB disconnect, address 4

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