linux/drivers/media/pci/ivtv/ivtv-ioctl.h
Hans Verkuil 314527acbb [media] v4l2: pass std by value to the write-only s_std ioctl
This ioctl is defined as IOW, so pass the argument by value instead of by
reference. I could have chosen to add const instead, but this is 1) easier
to handle in drivers and 2) consistent with the s_std subdev operation.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Jonathan Corbet <corbet@lwn.net>
Acked-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Acked-by: Lad, Prabhakar <prabhakar.csengg@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-03-24 06:47:00 -03:00

36 lines
1.5 KiB
C

/*
ioctl system call
Copyright (C) 2003-2004 Kevin Thayer <nufan_wfk at yahoo.com>
Copyright (C) 2005-2007 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_IOCTL_H
#define IVTV_IOCTL_H
u16 ivtv_service2vbi(int type);
void ivtv_expand_service_set(struct v4l2_sliced_vbi_format *fmt, int is_pal);
u16 ivtv_get_service_set(struct v4l2_sliced_vbi_format *fmt);
void ivtv_set_osd_alpha(struct ivtv *itv);
int ivtv_set_speed(struct ivtv *itv, int speed);
void ivtv_set_funcs(struct video_device *vdev);
void ivtv_s_std_enc(struct ivtv *itv, v4l2_std_id std);
void ivtv_s_std_dec(struct ivtv *itv, v4l2_std_id std);
int ivtv_s_frequency(struct file *file, void *fh, const struct v4l2_frequency *vf);
int ivtv_s_input(struct file *file, void *fh, unsigned int inp);
#endif