diff options
Diffstat (limited to 'Documentation/userspace-api/media/v4l/capture.c.rst')
| -rw-r--r-- | Documentation/userspace-api/media/v4l/capture.c.rst | 61 |
1 files changed, 27 insertions, 34 deletions
diff --git a/Documentation/userspace-api/media/v4l/capture.c.rst b/Documentation/userspace-api/media/v4l/capture.c.rst index 30f7c816e858..eef6772967a1 100644 --- a/Documentation/userspace-api/media/v4l/capture.c.rst +++ b/Documentation/userspace-api/media/v4l/capture.c.rst @@ -1,11 +1,4 @@ -.. Permission is granted to copy, distribute and/or modify this -.. document under the terms of the GNU Free Documentation License, -.. Version 1.1 or any later version published by the Free Software -.. Foundation, with no Invariant Sections, no Front-Cover Texts -.. and no Back-Cover Texts. A copy of the license is included at -.. Documentation/userspace-api/media/fdl-appendix.rst. -.. -.. TODO: replace it to GFDL-1.1-or-later WITH no-invariant-sections +.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later file: media/v4l/capture.c ========================= @@ -63,7 +56,7 @@ file: media/v4l/capture.c static void errno_exit(const char *s) { - fprintf(stderr, "%s error %d, %s\\n", s, errno, strerror(errno)); + fprintf(stderr, "%s error %d, %s\n", s, errno, strerror(errno)); exit(EXIT_FAILURE); } @@ -208,7 +201,7 @@ file: media/v4l/capture.c } if (0 == r) { - fprintf(stderr, "select timeout\\n"); + fprintf(stderr, "select timeout\n"); exit(EXIT_FAILURE); } @@ -314,7 +307,7 @@ file: media/v4l/capture.c buffers = calloc(1, sizeof(*buffers)); if (!buffers) { - fprintf(stderr, "Out of memory\\n"); + fprintf(stderr, "Out of memory\n"); exit(EXIT_FAILURE); } @@ -322,7 +315,7 @@ file: media/v4l/capture.c buffers[0].start = malloc(buffer_size); if (!buffers[0].start) { - fprintf(stderr, "Out of memory\\n"); + fprintf(stderr, "Out of memory\n"); exit(EXIT_FAILURE); } } @@ -348,7 +341,7 @@ file: media/v4l/capture.c } if (req.count < 2) { - fprintf(stderr, "Insufficient buffer memory on %s\\n", + fprintf(stderr, "Insufficient buffer memory on %s\n", dev_name); exit(EXIT_FAILURE); } @@ -356,7 +349,7 @@ file: media/v4l/capture.c buffers = calloc(req.count, sizeof(*buffers)); if (!buffers) { - fprintf(stderr, "Out of memory\\n"); + fprintf(stderr, "Out of memory\n"); exit(EXIT_FAILURE); } @@ -408,7 +401,7 @@ file: media/v4l/capture.c buffers = calloc(4, sizeof(*buffers)); if (!buffers) { - fprintf(stderr, "Out of memory\\n"); + fprintf(stderr, "Out of memory\n"); exit(EXIT_FAILURE); } @@ -417,7 +410,7 @@ file: media/v4l/capture.c buffers[n_buffers].start = malloc(buffer_size); if (!buffers[n_buffers].start) { - fprintf(stderr, "Out of memory\\n"); + fprintf(stderr, "Out of memory\n"); exit(EXIT_FAILURE); } } @@ -433,7 +426,7 @@ file: media/v4l/capture.c if (-1 == xioctl(fd, VIDIOC_QUERYCAP, &cap)) { if (EINVAL == errno) { - fprintf(stderr, "%s is no V4L2 device\\n", + fprintf(stderr, "%s is no V4L2 device\n", dev_name); exit(EXIT_FAILURE); } else { @@ -442,7 +435,7 @@ file: media/v4l/capture.c } if (!(cap.capabilities & V4L2_CAP_VIDEO_CAPTURE)) { - fprintf(stderr, "%s is no video capture device\\n", + fprintf(stderr, "%s is no video capture device\n", dev_name); exit(EXIT_FAILURE); } @@ -450,7 +443,7 @@ file: media/v4l/capture.c switch (io) { case IO_METHOD_READ: if (!(cap.capabilities & V4L2_CAP_READWRITE)) { - fprintf(stderr, "%s does not support read i/o\\n", + fprintf(stderr, "%s does not support read i/o\n", dev_name); exit(EXIT_FAILURE); } @@ -459,7 +452,7 @@ file: media/v4l/capture.c case IO_METHOD_MMAP: case IO_METHOD_USERPTR: if (!(cap.capabilities & V4L2_CAP_STREAMING)) { - fprintf(stderr, "%s does not support streaming i/o\\n", + fprintf(stderr, "%s does not support streaming i/o\n", dev_name); exit(EXIT_FAILURE); } @@ -548,7 +541,7 @@ file: media/v4l/capture.c struct stat st; if (-1 == stat(dev_name, &st)) { - fprintf(stderr, "Cannot identify '%s': %d, %s\\n", + fprintf(stderr, "Cannot identify '%s': %d, %s\n", dev_name, errno, strerror(errno)); exit(EXIT_FAILURE); } @@ -561,7 +554,7 @@ file: media/v4l/capture.c fd = open(dev_name, O_RDWR /* required */ | O_NONBLOCK, 0); if (-1 == fd) { - fprintf(stderr, "Cannot open '%s': %d, %s\\n", + fprintf(stderr, "Cannot open '%s': %d, %s\n", dev_name, errno, strerror(errno)); exit(EXIT_FAILURE); } @@ -570,17 +563,17 @@ file: media/v4l/capture.c static void usage(FILE *fp, int argc, char **argv) { fprintf(fp, - "Usage: %s [options]\\n\\n" - "Version 1.3\\n" - "Options:\\n" - "-d | --device name Video device name [%s]n" - "-h | --help Print this messagen" - "-m | --mmap Use memory mapped buffers [default]n" - "-r | --read Use read() callsn" - "-u | --userp Use application allocated buffersn" - "-o | --output Outputs stream to stdoutn" - "-f | --format Force format to 640x480 YUYVn" - "-c | --count Number of frames to grab [%i]n" + "Usage: %s [options]\n\n" + "Version 1.3\n" + "Options:\n" + "-d | --device name Video device name [%s]\n" + "-h | --help Print this message\n" + "-m | --mmap Use memory mapped buffers [default]\n" + "-r | --read Use read() calls\n" + "-u | --userp Use application allocated buffers\n" + "-o | --output Outputs stream to stdout\n" + "-f | --format Force format to 640x480 YUYV\n" + "-c | --count Number of frames to grab [%i]\n" "", argv[0], dev_name, frame_count); } @@ -666,6 +659,6 @@ file: media/v4l/capture.c stop_capturing(); uninit_device(); close_device(); - fprintf(stderr, "\\n"); + fprintf(stderr, "\n"); return 0; } |