skeleton_try_fmt_vid_cap 375 samples/v4l/v4l2-pci-skeleton.c ret = skeleton_try_fmt_vid_cap(file, priv, f); skeleton_try_fmt_vid_cap 702 samples/v4l/v4l2-pci-skeleton.c .vidioc_try_fmt_vid_cap = skeleton_try_fmt_vid_cap,