/usr/include/xenomai/analogy/descriptor.h is in libxenomai-dev 2.6.3-2.
This file is owned by root:root, with mode 0o644.
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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 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 | /**
* @file
* Analogy for Linux, descriptor related features
* @note Copyright (C) 1997-2000 David A. Schleef <ds@schleef.org>
* @note Copyright (C) 2008 Alexis Berlemont <alexis.berlemont@free.fr>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
*/
#ifndef __ANALOGY_LIB_CORE__
#define __ANALOGY_LIB_CORE__
#include <analogy/subdevice.h>
#include <analogy/device.h>
/* --- Descriptor precompilation constants --- */
/* Constant used internally */
#define MAGIC_BSC_DESC 0x1234abcd
#define MAGIC_CPLX_DESC 0xabcd1234
/*!
@addtogroup descriptor_sys
@{
*/
/*!
* @anchor ANALOGY_xxx_DESC @name ANALOGY_xxx_DESC
* @brief Constants used as argument so as to define the description
* depth to recover
* @{
*/
/**
* BSC stands for basic descriptor (device data)
*/
#define A4L_BSC_DESC 0x0
/**
* CPLX stands for complex descriptor (subdevice + channel + range
* data)
*/
#define A4L_CPLX_DESC 0x1
/*! @} ANALOGY_xxx_DESC */
/* --- Descriptor structure --- */
/*!
* @brief Structure containing device-information useful to users
* @see a4l_get_desc()
*/
struct a4l_descriptor {
char board_name[A4L_NAMELEN];
/**< Board name. */
int nb_subd;
/**< Subdevices count. */
int idx_read_subd;
/**< Input subdevice index. */
int idx_write_subd;
/**< Output subdevice index. */
int fd;
/**< File descriptor. */
unsigned int magic;
/**< Opaque field. */
int sbsize;
/**< Data buffer size. */
void *sbdata;
/**< Data buffer pointer. */
};
typedef struct a4l_descriptor a4l_desc_t;
/*! @} descriptor_sys */
#endif /* __ANALOGY_LIB_CORE__ */
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