diff options
Diffstat (limited to 'include/linux/i2c.h')
| -rw-r--r-- | include/linux/i2c.h | 41 |
1 files changed, 12 insertions, 29 deletions
diff --git a/include/linux/i2c.h b/include/linux/i2c.h index 5e19a7ba69b2b..7863a59bd5986 100644 --- a/include/linux/i2c.h +++ b/include/linux/i2c.h @@ -105,14 +105,14 @@ extern s32 i2c_smbus_read_i2c_block_data(struct i2c_client * client, * A driver is capable of handling one or more physical devices present on * I2C adapters. This information is used to inform the driver of adapter * events. + * + * 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. */ struct i2c_driver { - struct module *owner; - char name[32]; int id; unsigned int class; - unsigned int flags; /* div., see below */ /* Notifies the driver that a new bus has appeared. This routine * can be used by the driver to test if the bus meets its conditions @@ -250,18 +250,7 @@ static inline void i2c_set_adapdata (struct i2c_adapter *dev, void *data) dev_set_drvdata (&dev->dev, data); } -/*flags for the driver struct: */ -#define I2C_DF_NOTIFY 0x01 /* notify on bus (de/a)ttaches */ -#if 0 -/* this flag is gone -- there is a (optional) driver->detach_adapter - * callback now which can be used instead */ -# define I2C_DF_DUMMY 0x02 -#endif - /*flags for the client struct: */ -#define I2C_CLIENT_ALLOW_USE 0x01 /* Client allows access */ -#define I2C_CLIENT_ALLOW_MULTIPLE_USE 0x02 /* Allow multiple access-locks */ - /* on an i2c_client */ #define I2C_CLIENT_PEC 0x04 /* Use Packet Error Checking */ #define I2C_CLIENT_TEN 0x10 /* we have a ten bit chip address */ /* Must equal I2C_M_TEN below */ @@ -302,26 +291,20 @@ struct i2c_client_address_data { extern int i2c_add_adapter(struct i2c_adapter *); extern int i2c_del_adapter(struct i2c_adapter *); -extern int i2c_add_driver(struct i2c_driver *); +extern int i2c_register_driver(struct module *, struct i2c_driver *); extern int i2c_del_driver(struct i2c_driver *); +static inline int i2c_add_driver(struct i2c_driver *driver) +{ + return i2c_register_driver(THIS_MODULE, driver); +} + extern int i2c_attach_client(struct i2c_client *); extern int i2c_detach_client(struct i2c_client *); -/* New function: This is to get an i2c_client-struct for controlling the - client either by using i2c_control-function or having the - client-module export functions that can be used with the i2c_client - -struct. */ -extern struct i2c_client *i2c_get_client(int driver_id, int adapter_id, - struct i2c_client *prev); - -/* Should be used with new function - extern struct i2c_client *i2c_get_client(int,int,struct i2c_client *); - to make sure that client-struct is valid and that it is okay to access - the i2c-client. - returns -EACCES if client doesn't allow use (default) - returns -EBUSY if client doesn't allow multiple use (default) and - usage_count >0 */ +/* Should be used to make sure that client-struct is valid and that it + is okay to access the i2c-client. + returns -ENODEV if client has gone in the meantime */ extern int i2c_use_client(struct i2c_client *); extern int i2c_release_client(struct i2c_client *); |