Man page 9 : i2c_new_device

i2c_new_device - instantiate an i2c device

struct i2c_client * i2c_new_device(struct i2c_adapter *  adap , struct i2c_board_info const *  info );

adap
    the adapter managing the device

info
    describes one I2C device; bus_num is ignored

can sleep

Create an i2c device. Binding is handled through driver model probe/remove methods. A driver may be bound to this device when we return from this function, or any later moment (e.g. maybe hotplugging will load the driver module). This call is not appropriate for use by mainboard initialization logic, which usually runs during an arch_initcall long before any i2c_adapter could exist.

This returns the new i2c client, which may be saved for later use with i2c_unregister_device; or NULL to indicate an error.