I2C_STAT_RDR
I2C_STAT_ARDY | I2C_STAT_RDR | I2C_STAT_RRDY |
if (status & I2C_STAT_RDR) {
if (status & I2C_STAT_RDR)
ti_i2c_write_2(sc, I2C_REG_STATUS, I2C_STAT_RDR);