W83793_REG_CONFIG
w83793_write_value(client, W83793_REG_CONFIG, 0x80);
w83793_write_value(client, W83793_REG_CONFIG,
w83793_read_value(client, W83793_REG_CONFIG) | 0x01);
tmp = w83793_read_value(client, W83793_REG_CONFIG);
w83793_write_value(client, W83793_REG_CONFIG, tmp & ~0x04);
tmp = w83793_read_value(client, W83793_REG_CONFIG);
w83793_write_value(client, W83793_REG_CONFIG, tmp | 0x04);