Hi,
I'm planning to write a driver for a device with a number of absolute
axis and 16 pressure-sensitive trigger pads. Alltogether, it will have
more absoulte axis informations than the API in include/input.h is able
to represent. More than that, the definitions I'm referring to won't
describe the actual information in a sane way. I'm uncertain whether
this list can be extended by something like the patch below. Or is this
a nonono as it breaks existing user space applications? Any other idea
of how to solve this?
Thanks,
Daniel
>From ad95178134ab4cf9dd1b32daf3fff14d3c7d1e17 Mon Sep 17 00:00:00 2001
From: Daniel Mack <daniel@xxxxxxxx>
Date: Mon, 19 Apr 2010 19:08:14 +0200
Subject: [PATCH] input: add definitions for 16 trigger pads
Signed-off-by: Daniel Mack <daniel@xxxxxxxx>
---
include/linux/input.h | 19 ++++++++++++++++++-
1 files changed, 18 insertions(+), 1 deletions(-)
diff --git a/include/linux/input.h b/include/linux/input.h
index 7ed2251..39efad4 100644
--- a/include/linux/input.h
+++ b/include/linux/input.h
@@ -706,7 +706,24 @@ struct input_absinfo {
#define ABS_MT_TRACKING_ID 0x39 /* Unique ID of initiated contact */
#define ABS_MT_PRESSURE 0x3a /* Pressure on contact area */
-#define ABS_MAX 0x3f
+#define ABS_PAD1 0x40
+#define ABS_PAD2 0x41
+#define ABS_PAD3 0x42
+#define ABS_PAD4 0x43
+#define ABS_PAD5 0x44
+#define ABS_PAD6 0x45
+#define ABS_PAD7 0x46
+#define ABS_PAD8 0x47
+#define ABS_PAD9 0x48
+#define ABS_PAD10 0x49
+#define ABS_PAD11 0x4a
+#define ABS_PAD12 0x4b
+#define ABS_PAD13 0x4c
+#define ABS_PAD14 0x4d
+#define ABS_PAD15 0x4e
+#define ABS_PAD16 0x4f
+
+#define ABS_MAX 0x4f
#define ABS_CNT (ABS_MAX+1)
/*
--
1.7.0.3
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