pcf8584_put_s1
pcf8584_put_s1(i2c, S1_PIN | S1_ESO | S1_ACK);
pcf8584_put_s1(i2c, S1_START2);
pcf8584_put_s1(i2c, S1_START2 | S1_ENI);
pcf8584_put_s1(i2c, S1_STOP);
pcf8584_put_s1(i2c, S1_ESO);
pcf8584_put_s1(i2c, S1_ESO | S1_ENI);
pcf8584_put_s1(i2c, S1_STOP);
pcf8584_put_s1(i2c, S1_ESO);
pcf8584_put_s1(i2c, S1_ESO | S1_ENI);
pcf8584_put_s1(i2c, S1_STOP);
pcf8584_put_s1(i2c, S1_START2);
pcf8584_put_s1(i2c, S1_START2 | S1_ENI);
pcf8584_put_s1(i2c, S1_START);
pcf8584_put_s1(i2c, S1_START | S1_ENI);
static void pcf8584_put_s1(pcf8584_t *i2c, char cmd);
pcf8584_put_s1(i2c, S1_STOP);
pcf8584_put_s1(i2c, S1_STOP);
pcf8584_put_s1(i2c, S1_PIN);
pcf8584_put_s1(i2c, S1_PIN);
pcf8584_put_s1(i2c, S1_PIN | S1_ES1);