HelenOS sources

usb_multimedia_polling_callback   44 uspace/drv/hid/usbhid/multimedia/multimedia.h extern bool usb_multimedia_polling_callback(usb_hid_dev_t *, void *);
usb_multimedia_polling_callback   92 uspace/drv/hid/usbhid/subdrivers.c 			.poll = usb_multimedia_polling_callback,