Function SendCameraCommand

tensorflow/contrib/pi_examples/camera/camera.cc:61–73

Wrapper around camera command sending.

// Wrapper around camera command sending.
Status SendCameraCommand(int fh, int request, void* arg) {
  int r;
  do {
    r = v4l2_ioctl(fh, request, arg);
  } while (r == -1 && ((errno == EINTR) || (errno == EAGAIN)));
  if (r == -1) {
    LOG(ERROR) << "SendCameraCommand error " << errno << " (" << strerror(errno)
               << ")";
    return tensorflow::errors::Unknown("SendCameraCommand error ", errno,
                                       strerror(errno));
  }
  return Status::OK();
}

Status OpenCamera(int* camera_handle) {
  const char* dev_name = "/dev/video0";