41     mDeviceFd = ::open(deviceName, O_RDWR, 0);  in open()
42     if (mDeviceFd < 0) {  in open()
49         int result = ioctl(mDeviceFd, VIDIOC_QUERYCAP, &caps);  in open()
57     LOG(INFO) << "Open Device: " << deviceName << " (fd = " << mDeviceFd << ")";  in open()
72         if (ioctl(mDeviceFd, VIDIOC_ENUM_FMT, &formatDescriptions) == 0) {  in open()
104     if (ioctl(mDeviceFd, VIDIOC_S_FMT, &format) < 0) {  in open()
110     if (ioctl(mDeviceFd, VIDIOC_G_FMT, &format) == 0) {  in open()
141         LOG(DEBUG) << "closing video device file handle " << mDeviceFd;  in close()
142         ::close(mDeviceFd);  in close()
143         mDeviceFd = -1;  in close()
162     if (ioctl(mDeviceFd, VIDIOC_REQBUFS, &bufrequest) < 0) {  in startStream()
172     if (ioctl(mDeviceFd, VIDIOC_QUERYBUF, &mBufferInfo) < 0) {  in startStream()
188             mDeviceFd,  in startStream()
199     if (ioctl(mDeviceFd, VIDIOC_QBUF, &mBufferInfo) < 0) {  in startStream()
206     if (ioctl(mDeviceFd, VIDIOC_STREAMON, &type) < 0) {  in startStream()
240         if (ioctl(mDeviceFd, VIDIOC_STREAMOFF, &type) < 0) {  in stopStream()
255     ioctl(mDeviceFd, VIDIOC_REQBUFS, &bufrequest);  in stopStream()
272     if (ioctl(mDeviceFd, VIDIOC_QBUF, &mBufferInfo) < 0) {  in returnFrame()
286         if (ioctl(mDeviceFd, VIDIOC_DQBUF, &mBufferInfo) < 0) {  in collectFrames()
306     int status = ioctl(mDeviceFd, VIDIOC_S_CTRL, &control);  in setParameter()
317     int status = ioctl(mDeviceFd, VIDIOC_G_CTRL, &control);  in getParameter()
320                     << " fd = " << std::hex << mDeviceFd  in getParameter()
335     while (0 == ioctl(mDeviceFd, VIDIOC_QUERYCTRL, &ctrl)) {  in enumerateCameraControls()