I2C_ADD_ADAPTER(9)                   I2C and SMBus Subsystem                   I2C_ADD_ADAPTER(9)



NAME
       i2c_add_adapter - declare i2c adapter, use dynamic bus number

SYNOPSIS
       int i2c_add_adapter(struct i2c_adapter * adapter);

ARGUMENTS
       adapter
           the adapter to add

CONTEXT
       can sleep

DESCRIPTION
       This routine is used to declare an I2C adapter when its bus number doesn't matter or when
       its bus number is specified by an dt alias. Examples of bases when the bus number doesn't
       matter: I2C adapters dynamically added by USB links or PCI plugin cards.

       When this returns zero, a new bus number was allocated and stored in adap->nr, and the
       specified adapter became available for clients. Otherwise, a negative errno value is
       returned.

COPYRIGHT
Kernel Hackers Manual 4.8.                 January 2017                        I2C_ADD_ADAPTER(9)