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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

June 2024 Kernel Hackers Manual 3.10