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-rw-r--r--Documentation/i2c/writing-clients20
1 files changed, 6 insertions, 14 deletions
diff --git a/Documentation/i2c/writing-clients b/Documentation/i2c/writing-clients
index d19993cc060..3a057c8e550 100644
--- a/Documentation/i2c/writing-clients
+++ b/Documentation/i2c/writing-clients
@@ -25,9 +25,9 @@ routines, a client structure specific information like the actual I2C
address.
static struct i2c_driver foo_driver = {
- .owner = THIS_MODULE,
- .name = "Foo version 2.3 driver",
- .flags = I2C_DF_NOTIFY,
+ .driver = {
+ .name = "foo",
+ },
.attach_adapter = &foo_attach_adapter,
.detach_client = &foo_detach_client,
.command = &foo_command /* may be NULL */
@@ -36,10 +36,6 @@ static struct i2c_driver foo_driver = {
The name field must match the driver name, including the case. It must not
contain spaces, and may be up to 31 characters long.
-Don't worry about the flags field; just put I2C_DF_NOTIFY into it. This
-means that your driver will be notified when new adapters are found.
-This is almost always what you want.
-
All other fields are for call-back functions which will be explained
below.
@@ -496,17 +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