Merge current mainline tree into linux-omap tree

[linux-2.6-omap-h63xx.git] / include / linux / i2c-id.h

diff --git a/include/linux/i2c-id.h b/include/linux/i2c-id.h
index 7463833d647fe993235bd318ed427b7b14692de8..c473204a636e9aad45cdec3b19d505bdc31001a5 100644 (file)
--- a/include/linux/i2c-id.h
+++ b/include/linux/i2c-id.h
@@ -23,6 +23,10 @@
 #ifndef LINUX_I2C_ID_H
 #define LINUX_I2C_ID_H
 
+/* Please note that I2C driver IDs are optional. They are only needed if a
+   legacy chip driver needs to identify a bus or a bus driver needs to
+   identify a legacy client. If you don't need them, just don't set them. */
+
 /*
  * ---- Driver types -----------------------------------------------------
  */