| 23,7 → 23,7 |
|---|
| /* With some changes from Kyösti Mälkki <kmalkki@cc.hut.fi> and |
| Frodo Looijaard <frodol@dds.nl> */ |
| |
| /* $Id: i2c.h,v 1.1 2004-01-28 15:25:29 giacomo Exp $ */ |
| /* $Id: i2c.h,v 1.2 2006-09-20 05:28:07 tullio Exp $ */ |
| |
| #ifndef _LINUX_I2C_H |
| #define _LINUX_I2C_H |
| 53,10 → 53,6 |
|---|
| extern int i2c_master_send(struct i2c_client *,const char* ,int); |
| extern int i2c_master_recv(struct i2c_client *,char* ,int); |
| |
| /* Transfer num messages. |
| */ |
| extern int i2c_transfer(struct i2c_adapter *adap, struct i2c_msg msg[],int num); |
| |
| /* |
| * Some adapter types (i.e. PCF 8584 based ones) may support slave behaviuor. |
| * This is not tested/implemented yet and will change in the future. |
| 188,37 → 184,6 |
|---|
| } |
| |
| /* |
| * The following structs are for those who like to implement new bus drivers: |
| * i2c_algorithm is the interface to a class of hardware solutions which can |
| * be addressed using the same bus algorithms - i.e. bit-banging or the PCF8584 |
| * to name two of the most common. |
| */ |
| struct i2c_algorithm { |
| char name[32]; /* textual description */ |
| unsigned int id; |
| |
| /* If an adapter algorithm can't to I2C-level access, set master_xfer |
| to NULL. If an adapter algorithm can do SMBus access, set |
| smbus_xfer. If set to NULL, the SMBus protocol is simulated |
| using common I2C messages */ |
| int (*master_xfer)(struct i2c_adapter *adap,struct i2c_msg msgs[], |
| int num); |
| int (*smbus_xfer) (struct i2c_adapter *adap, u16 addr, |
| unsigned short flags, char read_write, |
| u8 command, int size, union i2c_smbus_data * data); |
| |
| /* --- these optional/future use for some adapter types.*/ |
| int (*slave_send)(struct i2c_adapter *,char*,int); |
| int (*slave_recv)(struct i2c_adapter *,char*,int); |
| |
| /* --- ioctl like call to set div. parameters. */ |
| int (*algo_control)(struct i2c_adapter *, unsigned int, unsigned long); |
| |
| /* To determine what the adapter supports */ |
| u32 (*functionality) (struct i2c_adapter *); |
| }; |
| |
| /* |
| * i2c_adapter is the structure used to identify a physical i2c bus along |
| * with the access algorithms necessary to access it. |
| */ |
| 401,6 → 366,42 |
|---|
| __u8 *buf; /* pointer to msg data */ |
| }; |
| |
| // moved here for gcc4 compatibility |
| /* Transfer num messages. */ |
| extern int i2c_transfer(struct i2c_adapter *adap, struct i2c_msg msg[],int num); |
| |
| // moved here for gcc4 compatibility |
| /* |
| * The following structs are for those who like to implement new bus drivers: |
| * i2c_algorithm is the interface to a class of hardware solutions which can |
| * be addressed using the same bus algorithms - i.e. bit-banging or the PCF8584 |
| * to name two of the most common. |
| */ |
| struct i2c_algorithm { |
| char name[32]; /* textual description */ |
| unsigned int id; |
| |
| /* If an adapter algorithm can't to I2C-level access, set master_xfer |
| to NULL. If an adapter algorithm can do SMBus access, set |
| smbus_xfer. If set to NULL, the SMBus protocol is simulated |
| using common I2C messages */ |
| int (*master_xfer)(struct i2c_adapter *adap,struct i2c_msg msgs[], |
| int num); |
| int (*smbus_xfer) (struct i2c_adapter *adap, u16 addr, |
| unsigned short flags, char read_write, |
| u8 command, int size, union i2c_smbus_data * data); |
| |
| /* --- these optional/future use for some adapter types.*/ |
| int (*slave_send)(struct i2c_adapter *,char*,int); |
| int (*slave_recv)(struct i2c_adapter *,char*,int); |
| |
| /* --- ioctl like call to set div. parameters. */ |
| int (*algo_control)(struct i2c_adapter *, unsigned int, unsigned long); |
| |
| /* To determine what the adapter supports */ |
| u32 (*functionality) (struct i2c_adapter *); |
| }; |
| |
| /* To determine what functionality is present */ |
| |
| #define I2C_FUNC_I2C 0x00000001 |