Added a small utility to allow see/edit IR tables

From: Mauro Carvalho Chehab <mchehab@infradead.org>

Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

1 files changed, 67 insertions, 0 deletions

diff --git a/v4l2-apps/util/keytable.c b/v4l2-apps/util/keytable.c
new file mode 100644
index 000000000..f908f6065
--- /dev/null
+++ b/v4l2-apps/util/keytable.c
@@ -0,0 +1,67 @@
+/* keytable.c - This program allows checking/replacing keys at IR
+
+   Copyright (C) 2006 Mauro Carvalho Chehab <mchehab@infradead.org>
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation, version 2 of the License.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+ */
+
+#include <ctype.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <linux/input.h>
+#include <sys/ioctl.h>
+
+void prtcode (int *codes)
+{
+	if (isprint (codes[1]))
+		printf("scancode %d = '%c' (0x%02x)\n", codes[0], codes[1], codes[1]);
+	else
+		printf("scancode %d = 0x%02x\n", codes[0], codes[1]);
+}
+
+int main (int argc, char *argv[])
+{
+	int fd;
+	unsigned int i;
+	int codes[2];
+
+	if (argc!=2 && argc!=4) {
+		printf ("usage: %s <device> to get table; or\n"
+			"       %s <device> <scancode> <keycode>\n",*argv,*argv);
+		return -1;
+	}
+
+        if ((fd = open(argv[1], O_RDONLY)) < 0) {
+                perror("Couldn't open input device");
+                return(-1);
+        }
+
+	if (argc==2) {
+		/* Get scancode table */
+		for (i=0;i<256;i++) {
+			codes[0] = i;
+			if(ioctl(fd, EVIOCGKEYCODE, codes)==0)
+				prtcode(codes);
+//			else perror ("EVIOGCKEYCODE");
+		}
+	} else {
+		codes[0] = (unsigned) strtol(argv[2], NULL, 0);
+		codes[1] = (unsigned) strtol(argv[3], NULL, 0);
+
+		if(ioctl(fd, EVIOCSKEYCODE, codes))
+			perror ("EVIOCSKEYCODE");
+
+		if(ioctl(fd, EVIOCGKEYCODE, codes)==0)
+			prtcode(codes);
+	}
+
+	return 0;
+}