usb_kbd_polling_callback 118 uspace/drv/hid/usbhid/kbd/kbddev.h extern bool usb_kbd_polling_callback(usb_hid_dev_t *, void *); usb_kbd_polling_callback 79 uspace/drv/hid/usbhid/subdrivers.c .poll = usb_kbd_polling_callback,HelenOS homepage, sources at GitHub