diff options
Diffstat (limited to 'include/linux/i2c.h')
-rw-r--r-- | include/linux/i2c.h | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/include/linux/i2c.h b/include/linux/i2c.h index cae7d618030c..a24e267fd189 100644 --- a/include/linux/i2c.h +++ b/include/linux/i2c.h | |||
@@ -150,15 +150,20 @@ struct i2c_driver { | |||
150 | 150 | ||
151 | /** | 151 | /** |
152 | * struct i2c_client - represent an I2C slave device | 152 | * struct i2c_client - represent an I2C slave device |
153 | * @flags: I2C_CLIENT_TEN indicates the device uses a ten bit chip address; | ||
154 | * I2C_CLIENT_PEC indicates it uses SMBus Packet Error Checking | ||
153 | * @addr: Address used on the I2C bus connected to the parent adapter. | 155 | * @addr: Address used on the I2C bus connected to the parent adapter. |
154 | * @name: Indicates the type of the device, usually a chip name that's | 156 | * @name: Indicates the type of the device, usually a chip name that's |
155 | * generic enough to hide second-sourcing and compatible revisions. | 157 | * generic enough to hide second-sourcing and compatible revisions. |
158 | * @adapter: manages the bus segment hosting this I2C device | ||
156 | * @dev: Driver model device node for the slave. | 159 | * @dev: Driver model device node for the slave. |
160 | * @irq: indicates the IRQ generated by this device (if any) | ||
157 | * @driver_name: Identifies new-style driver used with this device; also | 161 | * @driver_name: Identifies new-style driver used with this device; also |
158 | * used as the module name for hotplug/coldplug modprobe support. | 162 | * used as the module name for hotplug/coldplug modprobe support. |
159 | * | 163 | * |
160 | * An i2c_client identifies a single device (i.e. chip) connected to an | 164 | * An i2c_client identifies a single device (i.e. chip) connected to an |
161 | * i2c bus. The behaviour is defined by the routines of the driver. | 165 | * i2c bus. The behaviour exposed to Linux is defined by the driver |
166 | * managing the device. | ||
162 | */ | 167 | */ |
163 | struct i2c_client { | 168 | struct i2c_client { |
164 | unsigned short flags; /* div., see below */ | 169 | unsigned short flags; /* div., see below */ |
@@ -201,7 +206,7 @@ static inline void i2c_set_clientdata (struct i2c_client *dev, void *data) | |||
201 | * @addr: stored in i2c_client.addr | 206 | * @addr: stored in i2c_client.addr |
202 | * @platform_data: stored in i2c_client.dev.platform_data | 207 | * @platform_data: stored in i2c_client.dev.platform_data |
203 | * @irq: stored in i2c_client.irq | 208 | * @irq: stored in i2c_client.irq |
204 | 209 | * | |
205 | * I2C doesn't actually support hardware probing, although controllers and | 210 | * I2C doesn't actually support hardware probing, although controllers and |
206 | * devices may be able to use I2C_SMBUS_QUICK to tell whether or not there's | 211 | * devices may be able to use I2C_SMBUS_QUICK to tell whether or not there's |
207 | * a device at a given address. Drivers commonly need more information than | 212 | * a device at a given address. Drivers commonly need more information than |
@@ -210,7 +215,7 @@ static inline void i2c_set_clientdata (struct i2c_client *dev, void *data) | |||
210 | * i2c_board_info is used to build tables of information listing I2C devices | 215 | * i2c_board_info is used to build tables of information listing I2C devices |
211 | * that are present. This information is used to grow the driver model tree | 216 | * that are present. This information is used to grow the driver model tree |
212 | * for "new style" I2C drivers. For mainboards this is done statically using | 217 | * for "new style" I2C drivers. For mainboards this is done statically using |
213 | * i2c_register_board_info(), where @bus_num represents an adapter that isn't | 218 | * i2c_register_board_info(); bus numbers identify adapters that aren't |
214 | * yet available. For add-on boards, i2c_new_device() does this dynamically | 219 | * yet available. For add-on boards, i2c_new_device() does this dynamically |
215 | * with the adapter already known. | 220 | * with the adapter already known. |
216 | */ | 221 | */ |