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| 133 | * I2C_CLIENT_PEC indicates it uses SMBus Packet Error Checking |
133 | * I2C_CLIENT_PEC indicates it uses SMBus Packet Error Checking |
| 134 | * @addr: Address used on the I2C bus connected to the parent adapter. |
134 | * @addr: Address used on the I2C bus connected to the parent adapter. |
| 135 | * @name: Indicates the type of the device, usually a chip name that's |
135 | * @name: Indicates the type of the device, usually a chip name that's |
| 136 | * generic enough to hide second-sourcing and compatible revisions. |
136 | * generic enough to hide second-sourcing and compatible revisions. |
| 137 | * @adapter: manages the bus segment hosting this I2C device |
137 | * @adapter: manages the bus segment hosting this I2C device |
| 138 | * @driver: device's driver, hence pointer to access routines |
- | |
| 139 | * @dev: Driver model device node for the slave. |
138 | * @dev: Driver model device node for the slave. |
| 140 | * @irq: indicates the IRQ generated by this device (if any) |
139 | * @irq: indicates the IRQ generated by this device (if any) |
| 141 | * @detected: member of an i2c_driver.clients list or i2c-core's |
140 | * @detected: member of an i2c_driver.clients list or i2c-core's |
| 142 | * userspace_devices list |
141 | * userspace_devices list |
| 143 | * |
142 | * |
| Line 150... | Line 149... | ||
| 150 | unsigned short addr; /* chip address - NOTE: 7bit */ |
149 | unsigned short addr; /* chip address - NOTE: 7bit */ |
| 151 | /* addresses are stored in the */ |
150 | /* addresses are stored in the */ |
| 152 | /* _LOWER_ 7 bits */ |
151 | /* _LOWER_ 7 bits */ |
| 153 | char name[I2C_NAME_SIZE]; |
152 | char name[I2C_NAME_SIZE]; |
| 154 | struct i2c_adapter *adapter; /* the adapter we sit on */ |
153 | struct i2c_adapter *adapter; /* the adapter we sit on */ |
| 155 | struct i2c_driver *driver; /* and our access routines */ |
- | |
| 156 | struct device dev; /* the device structure */ |
154 | struct device dev; /* the device structure */ |
| 157 | int irq; /* irq issued by device */ |
155 | int irq; /* irq issued by device */ |
| 158 | struct list_head detected; |
156 | struct list_head detected; |
| 159 | }; |
157 | }; |
| 160 | #define to_i2c_client(d) container_of(d, struct i2c_client, dev) |
158 | #define to_i2c_client(d) container_of(d, struct i2c_client, dev) |
| Line 161... | Line 159... | ||
| 161 | 159 | ||
| - | 160 | extern struct i2c_client *i2c_verify_client(struct device *dev); |
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| Line 162... | Line 161... | ||
| 162 | extern struct i2c_client *i2c_verify_client(struct device *dev); |
161 | extern struct i2c_adapter *i2c_verify_adapter(struct device *dev); |
| 163 | 162 | ||
| 164 | /** |
163 | /** |
| 165 | * struct i2c_board_info - template for device creation |
164 | * struct i2c_board_info - template for device creation |
| Line 207... | Line 206... | ||
| 207 | /* |
206 | /* |
| 208 | * The following structs are for those who like to implement new bus drivers: |
207 | * The following structs are for those who like to implement new bus drivers: |
| 209 | * i2c_algorithm is the interface to a class of hardware solutions which can |
208 | * i2c_algorithm is the interface to a class of hardware solutions which can |
| 210 | * be addressed using the same bus algorithms - i.e. bit-banging or the PCF8584 |
209 | * be addressed using the same bus algorithms - i.e. bit-banging or the PCF8584 |
| 211 | * to name two of the most common. |
210 | * to name two of the most common. |
| - | 211 | * |
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| - | 212 | * The return codes from the @master_xfer field should indicate the type of |
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| - | 213 | * error code that occured during the transfer, as documented in the kernel |
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| - | 214 | * Documentation file Documentation/i2c/fault-codes. |
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| 212 | */ |
215 | */ |
| 213 | struct i2c_algorithm { |
216 | struct i2c_algorithm { |
| 214 | /* If an adapter algorithm can't do I2C-level access, set master_xfer |
217 | /* If an adapter algorithm can't do I2C-level access, set master_xfer |
| 215 | to NULL. If an adapter algorithm can do SMBus access, set |
218 | to NULL. If an adapter algorithm can do SMBus access, set |
| 216 | smbus_xfer. If set to NULL, the SMBus protocol is simulated |
219 | smbus_xfer. If set to NULL, the SMBus protocol is simulated |
| Line 273... | Line 276... | ||
| 273 | 276 | ||
| 274 | /* i2c adapter classes (bitmask) */ |
277 | /* i2c adapter classes (bitmask) */ |
| 275 | #define I2C_CLASS_HWMON (1<<0) /* lm_sensors, ... */ |
278 | #define I2C_CLASS_HWMON (1<<0) /* lm_sensors, ... */ |
| 276 | #define I2C_CLASS_DDC (1<<3) /* DDC bus on graphics adapters */ |
279 | #define I2C_CLASS_DDC (1<<3) /* DDC bus on graphics adapters */ |
| - | 280 | #define I2C_CLASS_SPD (1<<7) /* Memory modules */ |
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| Line 277... | Line 281... | ||
| 277 | #define I2C_CLASS_SPD (1<<7) /* Memory modules */ |
281 | #define I2C_CLASS_DEPRECATED (1<<8) /* Warn users that adapter will stop using classes */ |
| 278 | 282 | ||
| Line 279... | Line 283... | ||
| 279 | /* Internal numbers to terminate lists */ |
283 | /* Internal numbers to terminate lists */ |