w1: add touch block command

Writes and returns sampled data back to userspace.

Signed-off-by: Evgeniy Polyakov <zbr@ioremap.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 1 insertions, 0 deletions

diff --git a/drivers/w1/w1_netlink.h b/drivers/w1/w1_netlink.h
index 21913dfc0f3a..99dd21ba14c6 100644
--- a/drivers/w1/w1_netlink.h
+++ b/drivers/w1/w1_netlink.h
@@ -56,6 +56,7 @@ struct w1_netlink_msg
 #define W1_CMD_WRITE            0x1
 #define W1_CMD_SEARCH           0x2
 #define W1_CMD_ALARM_SEARCH     0x3
+#define W1_CMD_TOUCH            0x4
 
 struct w1_netlink_cmd
 {