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/* With some changes from Kyösti Mälkki and |
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/* With some changes from Kyösti Mälkki and |
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Frodo Looijaard */ |
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Frodo Looijaard */ |
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#ifndef _LINUX_I2C_H |
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#ifndef _LINUX_I2C_H |
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#define _LINUX_I2C_H |
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#define _LINUX_I2C_H |
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#include |
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#ifdef __KERNEL__ |
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#include |
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#include |
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#include |
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#include |
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#include /* for struct device */ |
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#include /* for completion */ |
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#include /* for completion */ |
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#include |
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#include |
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#include |
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#include |
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* @class: What kind of i2c device we instantiate (for detect) |
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* @class: What kind of i2c device we instantiate (for detect) |
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* @attach_adapter: Callback for bus addition (deprecated) |
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* @attach_adapter: Callback for bus addition (deprecated) |
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* @probe: Callback for device binding |
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* @probe: Callback for device binding |
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* @remove: Callback for device unbinding |
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* @remove: Callback for device unbinding |
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* @shutdown: Callback for device shutdown |
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* @shutdown: Callback for device shutdown |
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* @suspend: Callback for device suspend |
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* @resume: Callback for device resume |
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* @alert: Alert callback, for example for the SMBus alert protocol |
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* @alert: Alert callback, for example for the SMBus alert protocol |
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* @command: Callback for bus-wide signaling (optional) |
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* @command: Callback for bus-wide signaling (optional) |
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* @driver: Device driver model driver |
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* @driver: Device driver model driver |
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* @id_table: List of I2C devices supported by this driver |
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* @id_table: List of I2C devices supported by this driver |
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* @detect: Callback for device detection |
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* @detect: Callback for device detection |
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int (*probe)(struct i2c_client *, const struct i2c_device_id *); |
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int (*probe)(struct i2c_client *, const struct i2c_device_id *); |
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int (*remove)(struct i2c_client *); |
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int (*remove)(struct i2c_client *); |
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/* driver model interfaces that don't relate to enumeration */ |
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/* driver model interfaces that don't relate to enumeration */ |
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void (*shutdown)(struct i2c_client *); |
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// int (*suspend)(struct i2c_client *, pm_message_t mesg); |
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int (*resume)(struct i2c_client *); |
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void (*shutdown)(struct i2c_client *); |
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/* Alert callback, for example for the SMBus alert protocol. |
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/* Alert callback, for example for the SMBus alert protocol. |
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* The format and meaning of the data value depends on the protocol. |
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* The format and meaning of the data value depends on the protocol. |
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extern struct i2c_client *i2c_verify_client(struct device *dev); |
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extern struct i2c_client *i2c_verify_client(struct device *dev); |
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extern struct i2c_adapter *i2c_verify_adapter(struct device *dev); |
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extern struct i2c_adapter *i2c_verify_adapter(struct device *dev); |
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enum i2c_slave_event { |
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enum i2c_slave_event { |
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I2C_SLAVE_REQ_READ_START, |
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I2C_SLAVE_READ_REQUESTED, |
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I2C_SLAVE_REQ_READ_END, |
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I2C_SLAVE_WRITE_REQUESTED, |
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I2C_SLAVE_REQ_WRITE_START, |
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I2C_SLAVE_READ_PROCESSED, |
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I2C_SLAVE_REQ_WRITE_END, |
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I2C_SLAVE_WRITE_RECEIVED, |
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I2C_SLAVE_STOP, |
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I2C_SLAVE_STOP, |
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}; |
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}; |
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/** |
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/** |
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* struct i2c_board_info - template for device creation |
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* struct i2c_board_info - template for device creation |
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* @type: chip type, to initialize i2c_client.name |
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* @type: chip type, to initialize i2c_client.name |
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* @flags: to initialize i2c_client.flags |
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* @flags: to initialize i2c_client.flags |
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* @addr: stored in i2c_client.addr |
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* @addr: stored in i2c_client.addr |
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* @platform_data: stored in i2c_client.dev.platform_data |
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* @platform_data: stored in i2c_client.dev.platform_data |
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* @archdata: copied into i2c_client.dev.archdata |
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* @archdata: copied into i2c_client.dev.archdata |
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* @of_node: pointer to OpenFirmware device node |
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* @of_node: pointer to OpenFirmware device node |
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* @acpi_node: ACPI device node |
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* @fwnode: device node supplied by the platform firmware |
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* @irq: stored in i2c_client.irq |
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* @irq: stored in i2c_client.irq |
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* |
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* |
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* I2C doesn't actually support hardware probing, although controllers and |
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* I2C doesn't actually support hardware probing, although controllers and |
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/* Construct an I2C_CLIENT_END-terminated array of i2c addresses */ |
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/* Construct an I2C_CLIENT_END-terminated array of i2c addresses */ |
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#define I2C_ADDRS(addr, addrs...) \ |
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#define I2C_ADDRS(addr, addrs...) \ |
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((const unsigned short []){ addr, ## addrs, I2C_CLIENT_END }) |
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((const unsigned short []){ addr, ## addrs, I2C_CLIENT_END }) |
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#endif /* __KERNEL__ */ |
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/** |
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/** |