W83793_REG_BANKSEL
bank = i2c_smbus_read_byte_data(client, W83793_REG_BANKSEL);
data->bank = i2c_smbus_read_byte_data(client, W83793_REG_BANKSEL);
(client, W83793_REG_BANKSEL, new_bank) >= 0)
res = i2c_smbus_write_byte_data(client, W83793_REG_BANKSEL,