i2c: Add SMBus alert support

[pandora-kernel.git] / include / linux / i2c.h

diff --git a/include/linux/i2c.h b/include/linux/i2c.h
index 02fc617..476abd0 100644 (file)
--- 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.
         */