bttv_try_fmt_vbi_cap 3108 drivers/media/pci/bt8xx/bttv-driver.c .vidioc_try_fmt_vbi_cap = bttv_try_fmt_vbi_cap, bttv_try_fmt_vbi_cap 268 drivers/media/pci/bt8xx/bttvp.h int bttv_try_fmt_vbi_cap(struct file *file, void *fh, struct v4l2_format *f);