| 31,6 → 31,9 |
|---|
| #include <linux/module.h> |
| #include <linux/i2c-id.h> |
| #include <linux/mod_devicetable.h> |
| #include <linux/sched.h> /* for completion */ |
| #include <linux/mutex.h> |
| #include <linux/jiffies.h> |
| |
| extern struct bus_type i2c_bus_type; |
| extern struct device_type i2c_adapter_type; |
| 139,6 → 142,8 |
|---|
| * @irq: indicates the IRQ generated by this device (if any) |
| * @detected: member of an i2c_driver.clients list or i2c-core's |
| * userspace_devices list |
| * @slave_cb: Callback when I2C slave mode of an adapter is used. The adapter |
| * calls it to pass on slave events to the slave driver. |
| * |
| * An i2c_client identifies a single device (i.e. chip) connected to an |
| * i2c bus. The behaviour exposed to Linux is defined by the driver |
| 160,6 → 165,13 |
|---|
| extern struct i2c_client *i2c_verify_client(struct device *dev); |
| extern struct i2c_adapter *i2c_verify_adapter(struct device *dev); |
| |
| enum i2c_slave_event { |
| I2C_SLAVE_REQ_READ_START, |
| I2C_SLAVE_REQ_READ_END, |
| I2C_SLAVE_REQ_WRITE_START, |
| I2C_SLAVE_REQ_WRITE_END, |
| I2C_SLAVE_STOP, |
| }; |
| /** |
| * struct i2c_board_info - template for device creation |
| * @type: chip type, to initialize i2c_client.name |
| 210,7 → 222,7 |
|---|
| * to name two of the most common. |
| * |
| * The return codes from the @master_xfer field should indicate the type of |
| * error code that occured during the transfer, as documented in the kernel |
| * error code that occurred during the transfer, as documented in the kernel |
| * Documentation file Documentation/i2c/fault-codes. |
| */ |
| struct i2c_algorithm { |
| 230,6 → 242,12 |
|---|
| u32 (*functionality) (struct i2c_adapter *); |
| }; |
| |
| int i2c_recover_bus(struct i2c_adapter *adap); |
| |
| /* Generic recovery routines */ |
| int i2c_generic_gpio_recovery(struct i2c_adapter *adap); |
| int i2c_generic_scl_recovery(struct i2c_adapter *adap); |
| |
| /* |
| * i2c_adapter is the structure used to identify a physical i2c bus along |
| * with the access algorithms necessary to access it. |