dmesg | grep usb
usb.c: registered new driver usbdevfs
usb.c: registered new driver hub
usb.c: new USB bus registered, assigned bus number 1
usb.c: new USB bus registered, assigned bus number 2
usb.c: new USB bus registered, assigned bus number 3
usb.c: registered new driver Philips webcam
usb.c: USB device 2 (vend/prod 0x46d/0x8da) is not claimed by any active driver.
usb.c: registered new driver spca5xx
drivers/usb/spca5xx.c: USB SPCA5XX camera found. Logitech QC Messenger
drivers/usb/spca5xx.c: [spca5xx_probe:5480] Camera type JPEG
drivers/usb/zc3xx.h: [zc3xx_config:558] Find Sensor HV7131R(c)
drivers/usb/spca5xx.c: [spca5xx_getcapability:1765] maxw 640 maxh 480 minw 176 minh 144
drivers/usb/spca5xx.c: spca5xx driver 00.60.00 registered
usb.c: registered new driver ov51x
usb.c: registered new driver quickcam