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authorJean Delvare <khali@linux-fr.org>2005-11-26 20:28:06 +0100
committerGreg Kroah-Hartman <gregkh@suse.de>2006-01-05 22:16:21 -0800
commit8a9947552d43b0d20d5fa23ac0ba435d526be454 (patch)
tree086844a62f549e488ebeecc196e1d4726a1d4598 /Documentation/i2c
parentff179c8cf5caa17bf3d407edbb5872aa2eee6900 (diff)
downloadlinux-linaro-stable-8a9947552d43b0d20d5fa23ac0ba435d526be454.tar.gz
[PATCH] i2c: Drop i2c_driver.flags, 2 of 3
Just about every i2c chip driver sets the I2C_DF_NOTIFY flag, so we can simply make it the default and drop the flag. If any driver really doesn't want to be notified when i2c adapters are added, that driver can simply omit to set .attach_adapter. This approach is also more robust as it prevents accidental NULL pointer dereferences. Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'Documentation/i2c')
-rw-r--r--Documentation/i2c/porting-clients3
-rw-r--r--Documentation/i2c/writing-clients5
2 files changed, 3 insertions, 5 deletions
diff --git a/Documentation/i2c/porting-clients b/Documentation/i2c/porting-clients
index 184fac2377aa..64c610bf2fbc 100644
--- a/Documentation/i2c/porting-clients
+++ b/Documentation/i2c/porting-clients
@@ -109,6 +109,9 @@ Technical changes:
there is a MODULE_LICENSE() line, at the bottom of the file
(after MODULE_AUTHOR() and MODULE_DESCRIPTION(), in this order).
+* [Driver] The flags field of the i2c_driver structure is gone.
+ I2C_DF_NOTIFY is now the default behavior.
+
Coding policy:
* [Copyright] Use (C), not (c), for copyright.
diff --git a/Documentation/i2c/writing-clients b/Documentation/i2c/writing-clients
index d19993cc0604..59d2c169cd61 100644
--- a/Documentation/i2c/writing-clients
+++ b/Documentation/i2c/writing-clients
@@ -27,7 +27,6 @@ address.
static struct i2c_driver foo_driver = {
.owner = THIS_MODULE,
.name = "Foo version 2.3 driver",
- .flags = I2C_DF_NOTIFY,
.attach_adapter = &foo_attach_adapter,
.detach_client = &foo_detach_client,
.command = &foo_command /* may be NULL */
@@ -36,10 +35,6 @@ 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.