ddda424999
If write() on a VBI device node fails due to a bad buffer pointer from userspace, we should notify the application properly with EFAULT, per the V4L2 API spec. Signed-off-by: Andy Walls <awalls@md.metrocast.net> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
35 lines
1.3 KiB
C
35 lines
1.3 KiB
C
/*
|
|
Vertical Blank Interval support functions
|
|
Copyright (C) 2004-2007 Hans Verkuil <hverkuil@xs4all.nl>
|
|
|
|
This program is free software; you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation; either version 2 of the License, or
|
|
(at your option) any later version.
|
|
|
|
This program is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with this program; if not, write to the Free Software
|
|
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
*/
|
|
|
|
#ifndef IVTV_VBI_H
|
|
#define IVTV_VBI_H
|
|
|
|
ssize_t
|
|
ivtv_write_vbi_from_user(struct ivtv *itv,
|
|
const struct v4l2_sliced_vbi_data __user *sliced,
|
|
size_t count);
|
|
void ivtv_process_vbi_data(struct ivtv *itv, struct ivtv_buffer *buf,
|
|
u64 pts_stamp, int streamtype);
|
|
int ivtv_used_line(struct ivtv *itv, int line, int field);
|
|
void ivtv_disable_cc(struct ivtv *itv);
|
|
void ivtv_set_vbi(unsigned long arg);
|
|
void ivtv_vbi_work_handler(struct ivtv *itv);
|
|
|
|
#endif
|