hid_start_intr_polling
static int hid_start_intr_polling(hid_state_t *);
if ((rval = hid_start_intr_polling(hidp)) != USB_SUCCESS) {
((rval = hid_start_intr_polling(hidp)) !=
if ((rval = hid_start_intr_polling(hidp)) != USB_SUCCESS) {
rval = hid_start_intr_polling(hidp);