linux-hardened/Documentation/connector
David Fries 8a0427d192 w1: optional bundling of netlink kernel replies
Applications can submit a set of commands in one packet to the kernel,
and in some cases it is required such as reading the temperature
sensor results.  This adds an option W1_CN_BUNDLE to the flags of
cn_msg to request the kernel to reply in one packet for efficiency.

The cn_msg flags now check for unknown flag values and return an error
if one is seen.  See "Proper handling of unknown flags in system
calls" http://lwn.net/Articles/588444/

This corrects the ack values returned as per the protocol standard,
namely the original ack for status messages and seq + 1 for all others
such as the data returned from a read.

Some of the common variable names have been standardized as follows.
struct cn_msg *cn
struct w1_netlink_msg *msg
struct w1_netlink_cmd *cmd
struct w1_master *dev

When an argument and a function scope variable would collide, add req_
to the argument.

Signed-off-by: David Fries <David@Fries.net>
Acked-by: Evgeniy Polyakov <zbr@ioremap.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-05-27 13:56:21 -07:00
..
.gitignore .gitignore updates 2008-10-30 11:38:45 -07:00
cn_test.c connector: add portid to unicast in addition to broadcasting 2014-02-07 15:40:17 -08:00
connector.txt w1: optional bundling of netlink kernel replies 2014-05-27 13:56:21 -07:00
Makefile connector: get test code working by default 2009-07-17 10:14:26 -07:00
ucon.c connector - documentation: simplify netlink message length assignment 2013-10-02 16:03:51 -04:00