AT91_TWI_TXCOMP
at91_twi_write(dev, AT91_TWI_IER, AT91_TWI_TXCOMP);
unsigned ier = AT91_TWI_TXCOMP;
if (irqstatus & (AT91_TWI_TXCOMP | AT91_TWI_NACK)) {
at91_twi_write(dev, AT91_TWI_IER, AT91_TWI_TXCOMP);
AT91_TWI_TXCOMP |
AT91_TWI_TXCOMP | AT91_TWI_NACK |
(AT91_TWI_TXCOMP | AT91_TWI_RXRDY | AT91_TWI_TXRDY | AT91_TWI_NACK \