From 57d2c52f15dc93f836688279e4bba9bcf8012e65 Mon Sep 17 00:00:00 2001
From: Mauro Carvalho Chehab <mchehab@redhat.com>
Date: Fri, 14 Dec 2012 15:05:17 -0200
Subject: [PATCH] keytable: Add handler for EV_REL type

Those are typically used on mouse events.

Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
---
 utils/keytable/Makefile.am |  6 ++++++
 utils/keytable/keytable.c  | 16 ++++++++++++++++
 utils/keytable/parse.h     | 14 ++++++++++++++
 3 files changed, 36 insertions(+)

diff --git a/utils/keytable/Makefile.am b/utils/keytable/Makefile.am
index a676b3a..52b1e07 100644
--- a/utils/keytable/Makefile.am
+++ b/utils/keytable/Makefile.am
@@ -30,6 +30,12 @@ sync-with-kernel:
 	>> $(srcdir)/parse.h
 	@printf "\t{ NULL, 0}\n};\n" >> $(srcdir)/parse.h
 
+	@printf "struct parse_event rel_events[] = {\n" >> $(srcdir)/parse.h
+	@more $(KERNEL_DIR)/include/uapi/linux/input.h | perl -n \
+	-e 'if (m/^\#define\s+(REL_[^\s]+)\s+(0x[\d\w]+|[\d]+)/) ' \
+	-e '{ printf "\t{\"%s\", %s},\n",$$1,$$2; }' \
+	>> $(srcdir)/parse.h
+	@printf "\t{ NULL, 0}\n};\n" >> $(srcdir)/parse.h
 
 	@printf "struct parse_event abs_events[] = {\n" >> $(srcdir)/parse.h
 	@more $(KERNEL_DIR)/include/uapi/linux/input.h | perl -n \
diff --git a/utils/keytable/keytable.c b/utils/keytable/keytable.c
index 8321a25..16bdfbb 100644
--- a/utils/keytable/keytable.c
+++ b/utils/keytable/keytable.c
@@ -1293,6 +1293,22 @@ static void test_event(int fd)
 				printf(" value: 0x%04x\n", ev[i].value);
 				break;
 			}
+			case EV_REL:			{
+				char *name = "";
+
+				printf("%ld.%06ld: event rel ",
+					ev[i].time.tv_sec, ev[i].time.tv_usec);
+
+				for (p = rel_events; p->name != NULL; p++) {
+					if (p->value == ev[i].code) {
+						name = p->name;
+						break;
+					}
+				}
+				printf("%s (0x%04x)", name, ev[i].code);
+				printf(" value: 0x%04x\n", ev[i].value);
+				break;
+			}
 			case EV_REP:
 				printf("%ld.%06ld: event repeat: %d\n",
 					ev[i].time.tv_sec, ev[i].time.tv_usec,
diff --git a/utils/keytable/parse.h b/utils/keytable/parse.h
index 9a7712d..1a1d01a 100644
--- a/utils/keytable/parse.h
+++ b/utils/keytable/parse.h
@@ -508,6 +508,20 @@ struct parse_event key_events[] = {
 	{"KEY_MAX", 0x2ff},
 	{ NULL, 0}
 };
+struct parse_event rel_events[] = {
+	{"REL_X", 0x00},
+	{"REL_Y", 0x01},
+	{"REL_Z", 0x02},
+	{"REL_RX", 0x03},
+	{"REL_RY", 0x04},
+	{"REL_RZ", 0x05},
+	{"REL_HWHEEL", 0x06},
+	{"REL_DIAL", 0x07},
+	{"REL_WHEEL", 0x08},
+	{"REL_MISC", 0x09},
+	{"REL_MAX", 0x0f},
+	{ NULL, 0}
+};
 struct parse_event abs_events[] = {
 	{"ABS_X", 0x00},
 	{"ABS_Y", 0x01},
-- 
2.7.4