From: Florian Echtler <floe@butterbrot.org>
Date: Thu, 8 Feb 2018 08:43:03 +0000 (-0500)
Subject: media: add missing blob structure field for tag id
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=0a90448ead4a7683f9064852a8bb4150639d0fd2;p=linux.git

media: add missing blob structure field for tag id

The SUR40 can recognize specific printed patterns directly in hardware;
this information (i.e. the pattern id) is present but currently unused
in the blob structure.

Signed-off-by: Florian Echtler <floe@butterbrot.org>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
---

diff --git a/drivers/input/touchscreen/sur40.c b/drivers/input/touchscreen/sur40.c
index f16f8358c70aa..8375b06ba8378 100644
--- a/drivers/input/touchscreen/sur40.c
+++ b/drivers/input/touchscreen/sur40.c
@@ -81,7 +81,10 @@ struct sur40_blob {
 
 	__le32 area;       /* size in pixels/pressure (?) */
 
-	u8 padding[32];
+	u8 padding[24];
+
+	__le32 tag_id;     /* valid when type == 0x04 (SUR40_TAG) */
+	__le32 unknown;
 
 } __packed;