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-rw-r--r--include/linux/i2c.h7
1 files changed, 7 insertions, 0 deletions
diff --git a/include/linux/i2c.h b/include/linux/i2c.h
index 02fc617782ef..476abd09c921 100644
--- a/include/linux/i2c.h
+++ b/include/linux/i2c.h
@@ -152,6 +152,13 @@ struct i2c_driver {
int (*suspend)(struct i2c_client *, pm_message_t mesg);
int (*resume)(struct i2c_client *);
+ /* Alert callback, for example for the SMBus alert protocol.
+ * The format and meaning of the data value depends on the protocol.
+ * For the SMBus alert protocol, there is a single bit of data passed
+ * as the alert response's low bit ("event flag").
+ */
+ void (*alert)(struct i2c_client *, unsigned int data);
+
/* a ioctl like command that can be used to perform specific functions
* with the device.
*/

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