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);