4 files changed, 131 insertions, 0 deletions
diff --git a/extras/v4l_id/.gitignore b/extras/v4l_id/.gitignore
new file mode 100644
index 0000000000..dffced9f08
--- /dev/null
+++ b/extras/v4l_id/.gitignore
@@ -0,0 +1 @@
+v4l_id
diff --git a/extras/v4l_id/70-v4l.rules b/extras/v4l_id/70-v4l.rules
new file mode 100644
index 0000000000..a342a71949
--- /dev/null
+++ b/extras/v4l_id/70-v4l.rules
@@ -0,0 +1,20 @@
+# do not edit this file, it will be overwritten on update
+
+ACTION!="add|change", GOTO="persistent_v4l_end"
+SUBSYSTEM!="video4linux", GOTO="persistent_v4l_end"
+ENV{MAJOR}=="", GOTO="persistent_v4l_end"
+
+IMPORT{program}="v4l_id $tempnode"
+
+SUBSYSTEMS=="usb", IMPORT{program}="usb_id --export %p"
+KERNEL=="video*", ENV{ID_SERIAL}=="?*", SYMLINK+="v4l/by-id/$env{ID_BUS}-$env{ID_SERIAL}-video-index$attr{index}"
+
+# check for valid "index" number
+TEST!="index", GOTO="persistent_v4l_end"
+ATTR{index}!="?*", GOTO="persistent_v4l_end"
+
+IMPORT{program}="path_id %p"
+ENV{ID_PATH}=="?*", KERNEL=="video*|vbi*", SYMLINK+="v4l/by-path/$env{ID_PATH}-video-index$attr{index}"
+ENV{ID_PATH}=="?*", KERNEL=="audio*", SYMLINK+="v4l/by-path/$env{ID_PATH}-audio-index$attr{index}"
+
+LABEL="persistent_v4l_end"
diff --git a/extras/v4l_id/Makefile.am b/extras/v4l_id/Makefile.am
new file mode 100644
index 0000000000..6ff9fcd630
--- /dev/null
+++ b/extras/v4l_id/Makefile.am
@@ -0,0 +1,9 @@
+include $(top_srcdir)/Makefile.am.inc
+
+udevhomedir = $(udev_prefix)/lib/udev
+udevhome_PROGRAMS = v4l_id
+
+udevrulesdir = $(udev_prefix)/lib/udev/rules.d
+dist_udevrules_DATA = 70-v4l.rules
+
+v4l_id_SOURCES = v4l_id.c
diff --git a/extras/v4l_id/v4l_id.c b/extras/v4l_id/v4l_id.c
new file mode 100644
index 0000000000..59b4f2f737
--- /dev/null
+++ b/extras/v4l_id/v4l_id.c
@@ -0,0 +1,101 @@
+/*
+ * Copyright (C) 2009 Kay Sievers <kay.sievers@vrfy.org>
+ * Copyright (c) 2009 Filippo Argiolas <filippo.argiolas@gmail.com>
+ *
+ * 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;
+}