linux下video驱动源码位置

insmod   videodev  
insmod   pwc  
然后就打开/dev/video0或者video1设备  
从里面read出来就是图象数据  
至于什么格式可以用ioctl取出来

luther@gliethttp:~$ modprobe -l|grep video 查询内核当前支持的video模块
/lib/modules/2.6.27-7-generic/kernel/drivers/video/tridentfb.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/video/sm501fb.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/video/s1d13xxxfb.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/video/fb_sys_fops.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/video/pm3fb.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/video/sstfb.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/video/nvidia/nvidiafb.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/video/fb_ddc.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/video/tdfxfb.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/video/arcfb.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/video/cyber2000fb.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/video/backlight/corgi_bl.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/video/backlight/progear_bl.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/video/backlight/ltv350qv.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/video/backlight/platform_lcd.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/video/backlight/ili9320.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/video/backlight/mbp_nvidia_bl.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/video/backlight/cr_bllcd.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/video/backlight/vgg2432a4.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/video/backlight/lcd.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/video/svgalib.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/video/syscopyarea.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/video/s3fb.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/video/neofb.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/video/console/tileblit.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/video/console/softcursor.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/video/console/mdacon.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/video/console/font.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/video/console/fbcon.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/video/console/bitblit.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/video/savage/savagefb.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/video/macmodes.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/video/vgastate.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/video/aty/atyfb.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/video/aty/radeonfb.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/video/aty/aty128fb.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/video/sysimgblt.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/video/vt8623fb.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/video/vermilion/crvml.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/video/vermilion/vmlfb.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/video/kyro/kyrofb.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/video/sis/sisfb.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/video/cirrusfb.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/video/intelfb/intelfb.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/video/sysfillrect.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/video/hecubafb.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/video/display/display.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/video/uvesafb.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/video/vga16fb.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/video/matrox/i2c-matroxfb.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/video/matrox/matroxfb_accel.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/video/matrox/matroxfb_base.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/video/matrox/matroxfb_crtc2.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/video/matrox/matroxfb_misc.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/video/matrox/matroxfb_DAC1064.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/video/matrox/g450_pll.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/video/matrox/matroxfb_maven.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/video/matrox/matroxfb_Ti3026.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/video/matrox/matroxfb_g450.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/video/pm2fb.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/video/arkfb.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/video/hgafb.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/video/cyblafb.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/video/geode/gx1fb.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/video/geode/gxfb.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/video/geode/lxfb.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/video/output.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/video/riva/rivafb.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/video/carminefb.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/video/i810/i810fb.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/ieee1394/video1394.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/media/video/zr364xx.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/media/video/cx23885/cx23885.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/media/video/cpia_pp.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/media/video/se401.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/media/video/zr36067.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/media/video/tvaudio.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/media/video/tveeprom.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/media/video/bw-qcam.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/media/video/c-qcam.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/media/video/vp27smpx.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/media/video/tda9875.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/media/video/em28xx/em28xx.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/media/video/em28xx/em28xx-dvb.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/media/video/em28xx/em28xx-alsa.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/media/video/cafe_ccic.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/media/video/zc0301/zc0301.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/media/video/videocodec.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/media/video/cx18/cx18.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/media/video/v4l1-compat.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/media/video/tea6420.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/media/video/msp3400.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/media/video/videobuf-dma-contig.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/media/video/bt856.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/media/video/cx88/cx88-vp3054-i2c.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/media/video/cx88/cx88-blackbird.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/media/video/cx88/cx88-dvb.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/media/video/cx88/cx8800.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/media/video/cx88/cx88xx.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/media/video/cx88/cx8802.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/media/video/cx88/cx88-alsa.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/media/video/stradis.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/media/video/ivtv/ivtvfb.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/media/video/ivtv/ivtv.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/media/video/cx2341x.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/media/video/videobuf-core.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/media/video/tda7432.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/media/video/saa5249.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/media/video/sh_mobile_ceu_camera.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/media/video/saa7111.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/media/video/cpia_usb.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/media/video/upd64083.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/media/video/dpc7146.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/media/video/bt8xx/bttv.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/media/video/usbvideo/ibmcam.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/media/video/usbvideo/usbvideo.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/media/video/usbvideo/konicawc.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/media/video/usbvideo/ultracam.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/media/video/usbvideo/vicam.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/media/video/usbvideo/quickcam_messenger.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/media/video/compat_ioctl32.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/media/video/saa7127.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/media/video/meye.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/media/video/v4l2-common.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/media/video/saa6588.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/media/video/s2255drv.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/media/video/pwc/pwc.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/media/video/zr36060.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/media/video/m52790.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/media/video/adv7175.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/media/video/cpia.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/media/video/videobuf-vmalloc.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/media/video/wm8775.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/media/video/saa7115.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/media/video/saa7114.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/media/video/pms.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/media/video/vpx3220.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/media/video/mxb.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/media/video/saa5246a.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/media/video/gspca/gspca_ov519.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/media/video/gspca/gspca_sonixb.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/media/video/gspca/gspca_vc032x.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/media/video/gspca/gspca_main.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/media/video/gspca/gspca_pac7311.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/media/video/gspca/gspca_spca508.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/media/video/gspca/gspca_t613.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/media/video/gspca/gspca_spca561.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/media/video/gspca/gspca_etoms.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/media/video/gspca/gspca_pac207.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/media/video/gspca/gspca_spca506.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/media/video/gspca/gspca_conex.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/media/video/gspca/gspca_spca505.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/media/video/gspca/gspca_sunplus.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/media/video/gspca/gspca_zc3xx.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/media/video/gspca/gspca_stk014.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/media/video/gspca/gspca_spca500.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/media/video/gspca/gspca_sonixj.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/media/video/gspca/gspca_spca501.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/media/video/gspca/gspca_tv8532.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/media/video/gspca/gspca_mars.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/media/video/videodev.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/media/video/cs53l32a.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/media/video/soc_camera.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/media/video/btcx-risc.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/media/video/pvrusb2/pvrusb2.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/media/video/cs5345.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/media/video/mt9m001.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/media/video/videobuf-dma-sg.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/media/video/stv680.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/media/video/wm8739.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/media/video/cx25840/cx25840.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/media/video/zr36016.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/media/video/soc_camera_platform.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/media/video/ovcamchip/ovcamchip.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/media/video/upd64031a.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/media/video/au0828/au0828.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/media/video/tuner-3036.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/media/video/saa7134/saa6752hs.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/media/video/saa7134/saa7134.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/media/video/saa7134/saa7134-dvb.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/media/video/saa7134/saa7134-empress.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/media/video/saa7134/saa7134-alsa.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/media/video/ks0127.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/media/video/usbvision/usbvision.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/media/video/w9966.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/media/video/saa7185.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/media/video/hexium_orion.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/media/video/stkwebcam.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/media/video/hexium_gemini.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/media/video/w9968cf.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/media/video/mt9v022.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/media/video/videobuf-dvb.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/media/video/tda9840.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/media/video/tvp5150.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/media/video/tea6415c.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/media/video/cpia2/cpia2.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/media/video/saa7110.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/media/video/tuner.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/media/video/vivi.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/media/video/adv7170.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/media/video/v4l2-int-device.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/media/video/sn9c102/sn9c102.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/media/video/bt819.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/media/video/et61x251/et61x251.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/media/video/saa717x.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/media/video/zr36050.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/media/video/uvc/uvcvideo.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/media/video/ov7670.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/media/video/ir-kbd-i2c.ko
/lib/modules/2.6.27-7-generic/kernel/drivers/acpi/video.ko
luther@gliethttp:~$



1.usb驱动
luther@gliethttp:/vobs/works/lnx2625pxa/drivers/usb$ ls
atm    core    host   Kconfig   misc  otg     serial   usb-skeleton.c
class  gadget  image  Makefile  mon   readme  storage

2.video驱动
drivers/media/video
luther@gliethttp:/vobs/works/lnx2625pxa/drivers/media/video$ ls
adv7170.c         hexium_orion.c      saa7110.c       tea5761.h             videocodec.h
adv7175.c         ibmmpeg2.h          saa7111.c       tea5767.c             videodev.c
arv.c             indycam.c           saa7114.c       tea5767.h             vino.c
bt819.c           indycam.h           saa7115.c       tea6415c.c            vino.h
bt856.c           ir-kbd-i2c.c        saa711x.c       tea6415c.h            vivi.c
bt866.c           ivtv                saa711x_regs.h  tea6420.c             vp27smpx.c
bt8xx             Kconfig             saa7121.h       tea6420.h             vpx3220.c
btcx-risc.c       ks0127.c            saa7127.c       tlv320aic23b.c        w9966.c
btcx-risc.h       ks0127.h            saa7134         tuner-3036.c          w9968cf.c
bw-qcam.c         m52790.c            saa7146.h       tuner-core.c          w9968cf_decoder.h
bw-qcam.h         Makefile            saa7146reg.h    tuner-driver.h        w9968cf.h
cafe_ccic.c       meye.c              saa7185.c       tuner-i2c.h           w9968cf_vpp.h
cafe_ccic-regs.h  meye.h              saa7191.c       tuner-simple.c        wm8739.c
compat_ioctl32.c  msp3400-driver.c    saa7191.h       tuner-simple.h        wm8775.c
cpia2             msp3400-driver.h    saa7196.h       tuner-types.c         zc0301
cpia.c            msp3400-kthreads.c  se401.c         tuner-xc2028.c        zoran_card.c
cpia.h            mt20xx.c            se401.h         tuner-xc2028.h        zoran_card.h
cpia_pp.c         mt20xx.h            sn9c102         tuner-xc2028-types.h  zoran_device.c
cpia_usb.c        mxb.c               stk-sensor.c    tvaudio.c             zoran_device.h
c-qcam.c          mxb.h               stk-webcam.c    tveeprom.c            zoran_driver.c
cs5345.c          ov511.c             stk-webcam.h    tvmixer.c             zoran.h
cs53l32a.c        ov511.h             stradis.c       tvp5150.c             zoran_procfs.c
cs8420.h          ov7670.c            stv680.c        tvp5150_reg.h         zoran_procfs.h
cx2341x.c         ovcamchip           stv680.h        upd64031a.c           zr36016.c
cx23885           planb.c             tcm825x.c       upd64083.c            zr36016.h
cx25840           planb.h             tcm825x.h       usbvideo              zr36050.c
cx88              pms.c               tda7432.c       usbvision             zr36050.h
dabfirmware.h     pvrusb2             tda8290.c       v4l1-compat.c         zr36057.h
dabusb.c          pwc                 tda8290.h       v4l2-common.c         zr36060.c
dabusb.h          pxa2xx_v4l2ov2.c    tda9840.c       v4l2-int-device.c     zr36060.h
dpc7146.c         pxa3xx              tda9840.h       videobuf-core.c       zr364xx.c
em28xx            saa5246a.c          tda9875.c       videobuf-dma-sg.c
et61x251          saa5246a.h          tda9887.c       videobuf-dvb.c
font.h            saa5249.c           tda9887.h       videobuf-vmalloc.c
hexium_gemini.c   saa6588.c           tea5761.c       videocodec.c