diff options
Diffstat (limited to 'include/linux/i2c.h')
| -rw-r--r-- | include/linux/i2c.h | 27 |
1 files changed, 15 insertions, 12 deletions
diff --git a/include/linux/i2c.h b/include/linux/i2c.h index 56cfe23ffb39..903576df88dc 100644 --- a/include/linux/i2c.h +++ b/include/linux/i2c.h | |||
| @@ -57,9 +57,10 @@ struct i2c_board_info; | |||
| 57 | * transmit an arbitrary number of messages without interruption. | 57 | * transmit an arbitrary number of messages without interruption. |
| 58 | * @count must be be less than 64k since msg.len is u16. | 58 | * @count must be be less than 64k since msg.len is u16. |
| 59 | */ | 59 | */ |
| 60 | extern int i2c_master_send(struct i2c_client *client, const char *buf, | 60 | extern int i2c_master_send(const struct i2c_client *client, const char *buf, |
| 61 | int count); | ||
| 62 | extern int i2c_master_recv(const struct i2c_client *client, char *buf, | ||
| 61 | int count); | 63 | int count); |
| 62 | extern int i2c_master_recv(struct i2c_client *client, char *buf, int count); | ||
| 63 | 64 | ||
| 64 | /* Transfer num messages. | 65 | /* Transfer num messages. |
| 65 | */ | 66 | */ |
| @@ -78,23 +79,25 @@ extern s32 i2c_smbus_xfer(struct i2c_adapter *adapter, u16 addr, | |||
| 78 | /* Now follow the 'nice' access routines. These also document the calling | 79 | /* Now follow the 'nice' access routines. These also document the calling |
| 79 | conventions of i2c_smbus_xfer. */ | 80 | conventions of i2c_smbus_xfer. */ |
| 80 | 81 | ||
| 81 | extern s32 i2c_smbus_read_byte(struct i2c_client *client); | 82 | extern s32 i2c_smbus_read_byte(const struct i2c_client *client); |
| 82 | extern s32 i2c_smbus_write_byte(struct i2c_client *client, u8 value); | 83 | extern s32 i2c_smbus_write_byte(const struct i2c_client *client, u8 value); |
| 83 | extern s32 i2c_smbus_read_byte_data(struct i2c_client *client, u8 command); | 84 | extern s32 i2c_smbus_read_byte_data(const struct i2c_client *client, |
| 84 | extern s32 i2c_smbus_write_byte_data(struct i2c_client *client, | 85 | u8 command); |
| 86 | extern s32 i2c_smbus_write_byte_data(const struct i2c_client *client, | ||
| 85 | u8 command, u8 value); | 87 | u8 command, u8 value); |
| 86 | extern s32 i2c_smbus_read_word_data(struct i2c_client *client, u8 command); | 88 | extern s32 i2c_smbus_read_word_data(const struct i2c_client *client, |
| 87 | extern s32 i2c_smbus_write_word_data(struct i2c_client *client, | 89 | u8 command); |
| 90 | extern s32 i2c_smbus_write_word_data(const struct i2c_client *client, | ||
| 88 | u8 command, u16 value); | 91 | u8 command, u16 value); |
| 89 | /* Returns the number of read bytes */ | 92 | /* Returns the number of read bytes */ |
| 90 | extern s32 i2c_smbus_read_block_data(struct i2c_client *client, | 93 | extern s32 i2c_smbus_read_block_data(const struct i2c_client *client, |
| 91 | u8 command, u8 *values); | 94 | u8 command, u8 *values); |
| 92 | extern s32 i2c_smbus_write_block_data(struct i2c_client *client, | 95 | extern s32 i2c_smbus_write_block_data(const struct i2c_client *client, |
| 93 | u8 command, u8 length, const u8 *values); | 96 | u8 command, u8 length, const u8 *values); |
| 94 | /* Returns the number of read bytes */ | 97 | /* Returns the number of read bytes */ |
| 95 | extern s32 i2c_smbus_read_i2c_block_data(struct i2c_client *client, | 98 | extern s32 i2c_smbus_read_i2c_block_data(const struct i2c_client *client, |
| 96 | u8 command, u8 length, u8 *values); | 99 | u8 command, u8 length, u8 *values); |
| 97 | extern s32 i2c_smbus_write_i2c_block_data(struct i2c_client *client, | 100 | extern s32 i2c_smbus_write_i2c_block_data(const struct i2c_client *client, |
| 98 | u8 command, u8 length, | 101 | u8 command, u8 length, |
| 99 | const u8 *values); | 102 | const u8 *values); |
| 100 | #endif /* I2C */ | 103 | #endif /* I2C */ |