add v4l_id

6 files changed, 114 insertions, 1 deletions

diff --git a/Makefile.am b/Makefile.am
index 502dcbb..2c24739 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -5,6 +5,7 @@ SUBDIRS = \
 	modem-modeswitch \
 	usb-db \
 	keymap \
+	v4l_id \
 	udev-acl
 
 ACLOCAL_AMFLAGS = -I m4
diff --git a/configure.ac b/configure.ac
index 3e7ea79..afe6740 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1,5 +1,5 @@
 AC_INIT([udev-extras],
-	[20090506],
+	[20090509],
 	[linux-hotplug@vger.kernel.org])
 AC_PREREQ(2.60)
 AM_INIT_AUTOMAKE([check-news foreign 1.9 subdir-objects dist-bzip2])
@@ -56,6 +56,7 @@ rules.d/Makefile
 modem-modeswitch/Makefile
 udev-acl/Makefile
 keymap/Makefile
+v4l_id/Makefile
 usb-db/Makefile
 ])
 
diff --git a/v4l_id/.gitignore b/v4l_id/.gitignore
new file mode 100644
index 0000000..dffced9
--- /dev/null
+++ b/v4l_id/.gitignore
@@ -0,0 +1 @@
+v4l_id
diff --git a/v4l_id/70-v4l_id.rules b/v4l_id/70-v4l_id.rules
new file mode 100644
index 0000000..29e8b28
--- /dev/null
+++ b/v4l_id/70-v4l_id.rules
@@ -0,0 +1,3 @@
+# do not edit this file, it will be overwritten on update
+
+ACTION=="add|change", SUBSYSTEM=="video4linux", ENV{MAJOR}=="?*", IMPORT{program}="v4l_id $tempnode"
diff --git a/v4l_id/Makefile.am b/v4l_id/Makefile.am
new file mode 100644
index 0000000..0943496
--- /dev/null
+++ b/v4l_id/Makefile.am
@@ -0,0 +1,6 @@
+include $(top_srcdir)/Makefile.am.inc
+
+udevhomedir = $(udev_prefix)/lib/udev
+udevhome_PROGRAMS = v4l_id
+
+v4l_id_SOURCES = v4l_id.c
diff --git a/v4l_id/v4l_id.c b/v4l_id/v4l_id.c
new file mode 100644
index 0000000..9cebcdb
--- /dev/null
+++ b/v4l_id/v4l_id.c
@@ -0,0 +1,101 @@
+/*
+ * Copyright (C) 2009 Kay Sievers <kay.sievers@vrfy.org>
+ * Copyright (c) 2009 Filippo Argiolas
+ *
+ * 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; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * 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 <stdio.h>
+#include <errno.h>
+#include <string.h>
+#include <ctype.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <getopt.h>
+#include <sys/types.h>
+#include <sys/time.h>
+#include <sys/ioctl.h>
+#include <linux/videodev.h>
+#include <linux/videodev2.h>
+
+int main (int argc, char *argv[])
+{
+	static const struct option options[] = {
+		{ "help", no_argument, NULL, 'h' },
+		{}
+	};
+	int fd;
+	char *device;
+	struct video_capability v1cap;
+	struct v4l2_capability v2cap;
+
+	while (1) {
+		int option;
+
+		option = getopt_long(argc, argv, "h", options, NULL);
+		if (option == -1)
+			break;
+
+		switch (option) {
+		case 'h':
+			printf("Usage: v4l_id [--help] <device file>\n\n");
+		default:
+			return 1;
+		}
+	}
+	device = argv[optind];
+
+	if (device == NULL)
+		return 2;
+	fd = open (device, O_RDONLY);
+	if (fd < 0)
+		return 3;
+
+	if (ioctl (fd, VIDIOC_QUERYCAP, &v2cap) == 0) {
+		printf("ID_V4L_VERSION=2\n");
+		printf("ID_V4L_PRODUCT=%s\n", v2cap.card);
+		printf("ID_V4L_CAPABILITIES=:");
+		if ((v2cap.capabilities & V4L2_CAP_VIDEO_CAPTURE) > 0)
+			printf("capture:");
+		if ((v2cap.capabilities & V4L2_CAP_VIDEO_OUTPUT) > 0)
+			printf("video_output:");
+		if ((v2cap.capabilities & V4L2_CAP_VIDEO_OVERLAY) > 0)
+			printf("video_overlay:");
+		if ((v2cap.capabilities & V4L2_CAP_AUDIO) > 0)
+			printf("audio:");
+		if ((v2cap.capabilities & V4L2_CAP_TUNER) > 0)
+			printf("tuner:");
+		if ((v2cap.capabilities & V4L2_CAP_RADIO) > 0)
+			printf("radio:");
+		printf("\n");
+	} else if (ioctl (fd, VIDIOCGCAP, &v1cap) == 0) {
+		printf("ID_V4L_VERSION=1\n");
+		printf("ID_V4L_PRODUCT=%s\n", v1cap.name);
+		printf("ID_V4L_CAPABILITIES=:");
+		if ((v1cap.type & VID_TYPE_CAPTURE) > 0)
+			printf("capture:");
+		if ((v1cap.type & VID_TYPE_OVERLAY) > 0)
+			printf("video_overlay:");
+		if (v1cap.audios > 0)
+			printf("audio:");
+		if ((v1cap.type & VID_TYPE_TUNER) > 0)
+			printf("tuner:");
+		printf("\n");
+	}
+
+	close (fd);
+	return 0;
+}