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-rw-r--r--Documentation/i2c/writing-clients10
1 files changed, 3 insertions, 7 deletions
diff --git a/Documentation/i2c/writing-clients b/Documentation/i2c/writing-clients
index 27c425ac70a..3a057c8e550 100644
--- a/Documentation/i2c/writing-clients
+++ b/Documentation/i2c/writing-clients
@@ -492,17 +492,13 @@ Note that some functions are marked by `__init', and some data structures
by `__init_data'. Hose functions and structures can be removed after
kernel booting (or module loading) is completed.
+
Command function
================
A generic ioctl-like function call back is supported. You will seldom
-need this. You may even set it to NULL.
-
- /* No commands defined */
- int foo_command(struct i2c_client *client, unsigned int cmd, void *arg)
- {
- return 0;
- }
+need this, and its use is deprecated anyway, so newer design should not
+use it. Set it to NULL.
Sending and receiving