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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_bus_recovery_info *bri);
void (* unprepare_recovery) (struct i2c_bus_recovery_info *bri);
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 3.10 June 2014 STRUCT I2C_BUS_RECOV(9)
