root@android:/sys/bus/usb/drivers/usb/usb1/usb_device/usbdev1.1/device/1-1/driver # ls -lR

.:
lrwxrwxrwx root     root              2013-06-25 19:12 1-1 -> ../../../../devices/platform/omap/musb-omap2430/musb-hdrc/usb1/1-1
--w------- root     root         4096 2013-06-25 19:12 bind
--w------- root     root         4096 2013-06-25 19:12 uevent
--w------- root     root         4096 2013-06-25 19:12 unbind
lrwxrwxrwx root     root              2013-06-25 19:12 usb1 -> ../../../../devices/platform/omap/musb-omap2430/musb-hdrc/usb1