/usr/include/xenomai/analogy/context.h is in libxenomai-dev 2.6.2.1-2ubuntu2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 | /**
* @file
* Analogy for Linux, context structure / macros declarations
*
* Copyright (C) 1997-2000 David A. Schleef <ds@schleef.org>
* Copyright (C) 2008 Alexis Berlemont <alexis.berlemont@free.fr>
*
* Xenomai 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.
*
* Xenomai 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 Xenomai; if not, write to the Free Software Foundation,
* Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#ifndef __ANALOGY_CONTEXT__
#define __ANALOGY_CONTEXT__
#if defined(__KERNEL__) && !defined(DOXYGEN_CPP)
#include <rtdm/rtdm_driver.h>
struct a4l_device;
struct a4l_buffer;
struct a4l_device_context {
/* Needed to call rtdm_*_copy_from/to_user functions */
rtdm_user_info_t *user_info;
/* The adequate device pointer
(retrieved thanks to minor at open time) */
struct a4l_device *dev;
/* The buffer structure contains everything to transfer data
from asynchronous acquisition operations on a specific
subdevice */
struct a4l_buffer *buffer;
};
typedef struct a4l_device_context a4l_cxt_t;
static inline int a4l_get_minor(a4l_cxt_t *cxt)
{
/* Get a pointer on the container structure */
struct rtdm_dev_context * rtdm_cxt = rtdm_private_to_context(cxt);
/* Get the minor index */
return rtdm_cxt->device->device_id;
}
#endif /* __KERNEL__ && !DOXYGEN_CPP */
#endif /* __ANALOGY_CONTEXT__ */
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