STRUCT I2C_BUS_RECOV(9)              I2C and SMBus Subsystem              STRUCT I2C_BUS_RECOV(9)



NAME
       struct_i2c_bus_recovery_info - I2C bus recovery information

SYNOPSIS
       struct i2c_bus_recovery_info {
         int (* recover_bus) (struct i2c_adapter *);
         int (* get_scl) (struct i2c_adapter *);
         void (* set_scl) (struct i2c_adapter *, int val);
         int (* get_sda) (struct i2c_adapter *);
         void (* prepare_recovery) (struct i2c_adapter *);
         void (* unprepare_recovery) (struct i2c_adapter *);
         int scl_gpio;
         int sda_gpio;
       };

MEMBERS
       recover_bus
           Recover routine. Either pass driver's recover_bus routine, or i2c_generic_scl_recovery
           or i2c_generic_gpio_recovery.

       get_scl
           This gets current value of SCL line. Mandatory for generic SCL recovery. Used
           internally for generic GPIO recovery.

       set_scl
           This sets/clears SCL line. Mandatory for generic SCL recovery. Used internally for
           generic GPIO recovery.

       get_sda
           This gets current value of SDA line. Optional for generic SCL recovery. Used
           internally, if sda_gpio is a valid GPIO, for generic GPIO recovery.

       prepare_recovery
           This will be called before starting recovery. Platform may configure padmux here for
           SDA/SCL line or something else they want.

       unprepare_recovery
           This will be called after completing recovery. Platform may configure padmux here for
           SDA/SCL line or something else they want.

       scl_gpio
           gpio number of the SCL line. Only required for GPIO recovery.

       sda_gpio
           gpio number of the SDA line. Only required for GPIO recovery.

COPYRIGHT
Kernel Hackers Manual 4.8.                 January 2017                   STRUCT I2C_BUS_RECOV(9)