usbhid_req_set_protocol 791 uspace/drv/hid/usbhid/kbd/kbddev.c rc = usbhid_req_set_protocol( usbhid_req_set_protocol 442 uspace/drv/hid/usbhid/mouse/mousedev.c rc = usbhid_req_set_protocol( usbhid_req_set_protocol 47 uspace/lib/usbhid/include/usb/hid/request.h errno_t usbhid_req_set_protocol(usb_pipe_t *ctrl_pipe, int iface_no,HelenOS homepage, sources at GitHub