]>
git.ipfire.org Git - thirdparty/systemd.git/blob - src/udev/v4l_id/v4l_id.c
2 * Copyright (C) 2009 Kay Sievers <kay.sievers@vrfy.org>
3 * Copyright (c) 2009 Filippo Argiolas <filippo.argiolas@gmail.com>
5 * This program is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU General Public License as
7 * published by the Free Software Foundation; either version 2 of the
8 * License, or (at your option) any later version.
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * General Public License for more details:
28 #include <sys/types.h>
30 #include <sys/ioctl.h>
31 #include <linux/videodev2.h>
33 int main (int argc
, char *argv
[])
35 static const struct option options
[] = {
36 { "help", no_argument
, NULL
, 'h' },
41 struct v4l2_capability v2cap
;
46 option
= getopt_long(argc
, argv
, "h", options
, NULL
);
52 printf("Usage: v4l_id [--help] <device file>\n\n");
58 device
= argv
[optind
];
62 fd
= open (device
, O_RDONLY
);
66 if (ioctl (fd
, VIDIOC_QUERYCAP
, &v2cap
) == 0) {
67 printf("ID_V4L_VERSION=2\n");
68 printf("ID_V4L_PRODUCT=%s\n", v2cap
.card
);
69 printf("ID_V4L_CAPABILITIES=:");
70 if ((v2cap
.capabilities
& V4L2_CAP_VIDEO_CAPTURE
) > 0)
72 if ((v2cap
.capabilities
& V4L2_CAP_VIDEO_OUTPUT
) > 0)
73 printf("video_output:");
74 if ((v2cap
.capabilities
& V4L2_CAP_VIDEO_OVERLAY
) > 0)
75 printf("video_overlay:");
76 if ((v2cap
.capabilities
& V4L2_CAP_AUDIO
) > 0)
78 if ((v2cap
.capabilities
& V4L2_CAP_TUNER
) > 0)
80 if ((v2cap
.capabilities
& V4L2_CAP_RADIO
) > 0)