AT91_TWI_SR
const unsigned status = at91_twi_read(dev, AT91_TWI_SR);
} while (at91_twi_read(dev, AT91_TWI_SR) & AT91_TWI_RXRDY);
at91_twi_read(dev, AT91_TWI_SR);
dev->transfer_status |= at91_twi_read(dev, AT91_TWI_SR);
dev->transfer_status |= at91_twi_read(dev, AT91_TWI_SR);
const unsigned status = at91_twi_read(dev, AT91_TWI_SR);