PCC_LED
pcan_set_leds(card, PCC_LED(c), PCC_LED_ON);
pcan_set_leds(card, PCC_LED(c), PCC_LED_SLOW);
if (led_mask & PCC_LED(i)) {
led_mask |= PCC_LED(i);
#define PCC_LED_ALL (PCC_LED(0) | PCC_LED(1))