+static void ivtv_write_vbi(struct ivtv *itv,
+ const struct v4l2_sliced_vbi_data *sliced,
+ size_t cnt)
+{
+ struct vbi_cc cc = { .odd = { 0x80, 0x80 }, .even = { 0x80, 0x80 } };
+ int found_cc = 0;
+ size_t i;
+
+ for (i = 0; i < cnt; i++)
+ ivtv_write_vbi_line(itv, sliced + i, &cc, &found_cc);
+
+ if (found_cc)
+ ivtv_write_vbi_cc_lines(itv, &cc);
+}
+
+ssize_t
+ivtv_write_vbi_from_user(struct ivtv *itv,
+ const struct v4l2_sliced_vbi_data __user *sliced,
+ size_t cnt)
+{
+ struct vbi_cc cc = { .odd = { 0x80, 0x80 }, .even = { 0x80, 0x80 } };
+ int found_cc = 0;
+ size_t i;
+ struct v4l2_sliced_vbi_data d;
+ ssize_t ret = cnt * sizeof(struct v4l2_sliced_vbi_data);
+
+ for (i = 0; i < cnt; i++) {
+ if (copy_from_user(&d, sliced + i,
+ sizeof(struct v4l2_sliced_vbi_data))) {
+ ret = -EFAULT;
+ break;
+ }
+ ivtv_write_vbi_line(itv, sliced + i, &cc, &found_cc);
+ }
+
+ if (found_cc)
+ ivtv_write_vbi_cc_lines(itv, &cc);
+
+ return ret;
+}
+