I2C_DEL_DRIVER(9) I2C and SMBus Subsystem I2C_DEL_DRIVER(9)NAME
i2c_del_driver - unregister I2C driver
SYNOPSIS
void i2c_del_driver(struct i2c_driver * driver);
ARGUMENTS
driver
the driver being unregistered
CONTEXT
can sleep
COPYRIGHT Kernel Hackers Manual 3.10 June 2014 I2C_DEL_DRIVER(9)
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STRUCT I2C_DRIVER(9) I2C and SMBus Subsystem STRUCT I2C_DRIVER(9)NAME
struct_i2c_driver - represent an I2C device driver
SYNOPSIS
struct i2c_driver {
unsigned int class;
int (* attach_adapter) (struct i2c_adapter *);
int (* detach_adapter) (struct i2c_adapter *);
int (* probe) (struct i2c_client *, const struct i2c_device_id *);
int (* remove) (struct i2c_client *);
void (* shutdown) (struct i2c_client *);
int (* suspend) (struct i2c_client *, pm_message_t mesg);
int (* resume) (struct i2c_client *);
int (* command) (struct i2c_client *client, unsigned int cmd, void *arg);
struct device_driver driver;
const struct i2c_device_id * id_table;
int (* detect) (struct i2c_client *, struct i2c_board_info *);
const unsigned short * address_list;
struct list_head clients;
};
MEMBERS
class
What kind of i2c device we instantiate (for detect)
attach_adapter
Callback for bus addition (for legacy drivers)
detach_adapter
Callback for bus removal (for legacy drivers)
probe
Callback for device binding
remove
Callback for device unbinding
shutdown
Callback for device shutdown
suspend
Callback for device suspend
resume
Callback for device resume
command
Callback for bus-wide signaling (optional)
driver
Device driver model driver
id_table
List of I2C devices supported by this driver
detect
Callback for device detection
address_list
The I2C addresses to probe (for detect)
clients
List of detected clients we created (for i2c-core use only)
DESCRIPTION
The driver.owner field should be set to the module owner of this driver. The driver.name field should be set to the name of this driver.
For automatic device detection, both detect and address_data must be defined. class should also be set, otherwise only devices forced with
module parameters will be created. The detect function must fill at least the name field of the i2c_board_info structure it is handed upon
successful detection, and possibly also the flags field.
If detect is missing, the driver will still work fine for enumerated devices. Detected devices simply won't be supported. This is expected
for the many I2C/SMBus devices which can't be detected reliably, and the ones which can always be enumerated in practice.
The i2c_client structure which is handed to the detect callback is not a real i2c_client. It is initialized just enough so that you can
call i2c_smbus_read_byte_data and friends on it. Don't do anything else with it. In particular, calling dev_dbg and friends on it is not
allowed.
COPYRIGHT Kernel Hackers Manual 2.6. July 2010 STRUCT I2C_DRIVER(9)
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