snd_i2c_bit_direction
snd_i2c_bit_direction(bus, 1, 1); /* SCL - wr, SDA - wr */
snd_i2c_bit_direction(bus, 1, 0); /* SCL - wr, SDA - rd */
snd_i2c_bit_direction(bus, 1, 1); /* SCL - wr, SDA - wr */
snd_i2c_bit_direction(bus, 1, 0); /* SCL - wr, SDA - rd */
snd_i2c_bit_direction(bus, 1, 1); /* SCL - wr, SDA - wr */