HelenOS sources

usb_kbd_deinit    123 uspace/drv/hid/usbhid/kbd/kbddev.h extern void usb_kbd_deinit(usb_hid_dev_t *, void *);
usb_kbd_deinit     78 uspace/drv/hid/usbhid/subdrivers.c 			.deinit = usb_kbd_deinit,
HelenOS homepage, sources at GitHub