From 8a0427d192e6043834414210dd14cc1289daff18 Mon Sep 17 00:00:00 2001 From: David Fries Date: Tue, 8 Apr 2014 22:37:09 -0500 Subject: 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 Acked-by: Evgeniy Polyakov Signed-off-by: Greg Kroah-Hartman --- Documentation/w1/w1.generic | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'Documentation/w1/w1.generic') diff --git a/Documentation/w1/w1.generic b/Documentation/w1/w1.generic index a31c5a242973..b2033c64c7da 100644 --- a/Documentation/w1/w1.generic +++ b/Documentation/w1/w1.generic @@ -82,7 +82,7 @@ driver - (standard) symlink to the w1 driver w1_master_add - Manually register a slave device w1_master_attempts - the number of times a search was attempted w1_master_max_slave_count - - the maximum slaves that may be attached to a master + - maximum number of slaves to search for at a time w1_master_name - the name of the device (w1_bus_masterX) w1_master_pullup - 5V strong pullup 0 enabled, 1 disabled w1_master_remove - Manually remove a slave device -- cgit v1.2.3