VT1724_REVO_I2C_CLOCK
val |= VT1724_REVO_I2C_CLOCK; /* write SCL */
mask = VT1724_REVO_I2C_CLOCK | VT1724_REVO_I2C_DATA;
val |= VT1724_REVO_I2C_CLOCK;
VT1724_REVO_I2C_CLOCK, val);