w1: added w1 reset command
Command which allows to reset the bus.
Signed-off-by: Evgeniy Polyakov <zbr@ioremap.net>
Cc: Paul Alfille <paul.alfille@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/Documentation/w1/w1.netlink b/Documentation/w1/w1.netlink
index d596d40..2756681 100644
--- a/Documentation/w1/w1.netlink
+++ b/Documentation/w1/w1.netlink
@@ -112,6 +112,12 @@
sizeof(struct w1_netlink_cmd) +
N*8;
+W1 reset command.
+[cn_msg]
+ [w1_netlink_msg type = W1_MASTER_CMD
+ id is equal to the bus master id to use for searching]
+ [w1_netlink_cmd cmd = W1_CMD_RESET]
+
Operation steps in w1 core when new command is received.
=======================================================
diff --git a/drivers/w1/w1_netlink.c b/drivers/w1/w1_netlink.c
index a94336b..f978c75 100644
--- a/drivers/w1/w1_netlink.c
+++ b/drivers/w1/w1_netlink.c
@@ -197,6 +197,9 @@
case W1_CMD_TOUCH:
err = w1_process_command_io(dev, msg, hdr, cmd);
break;
+ case W1_CMD_RESET:
+ err = w1_reset_bus(dev);
+ break;
default:
cmd->res = EINVAL;
cn_netlink_send(msg, 0, GFP_KERNEL);
diff --git a/drivers/w1/w1_netlink.h b/drivers/w1/w1_netlink.h
index 01d86a7..68a4ff4 100644
--- a/drivers/w1/w1_netlink.h
+++ b/drivers/w1/w1_netlink.h
@@ -58,6 +58,7 @@
W1_CMD_SEARCH,
W1_CMD_ALARM_SEARCH,
W1_CMD_TOUCH,
+ W1_CMD_RESET,
W1_CMD_MAX,
};