set_scan_semaphore
void (*set_scan_semaphore)(void* controller, sem_id sem);
fController->set_scan_semaphore(fCookie, fScanSemaphore);
void set_scan_semaphore(void* controller, sem_id sem);
.set_scan_semaphore = set_scan_semaphore,
.set_scan_semaphore = set_scan_semaphore,