This file is indexed.

/usr/x86_64-linux-gnu/include/linux/hdlcdrv.h is in linux-libc-dev-amd64-cross 4.15.0-18.19cross1.

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
 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
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
/*
 * hdlcdrv.h  -- HDLC packet radio network driver.
 * The Linux soundcard driver for 1200 baud and 9600 baud packet radio
 * (C) 1996-1998 by Thomas Sailer, HB9JNX/AE4WA
 */

#ifndef _HDLCDRV_H
#define _HDLCDRV_H

/* -------------------------------------------------------------------- */
/*
 * structs for the IOCTL commands
 */

struct hdlcdrv_params {
	int iobase;
	int irq;
	int dma;
	int dma2;
	int seriobase;
	int pariobase;
	int midiiobase;
};	

struct hdlcdrv_channel_params {
	int tx_delay;  /* the transmitter keyup delay in 10ms units */
	int tx_tail;   /* the transmitter keyoff delay in 10ms units */
	int slottime;  /* the slottime in 10ms; usually 10 = 100ms */
	int ppersist;  /* the p-persistence 0..255 */
	int fulldup;   /* some driver do not support full duplex, setting */
	               /* this just makes them send even if DCD is on */
};	

struct hdlcdrv_old_channel_state {
  	int ptt;
  	int dcd;
  	int ptt_keyed;
};

struct hdlcdrv_channel_state {
 	int ptt;
 	int dcd;
 	int ptt_keyed;
 	unsigned long tx_packets;
 	unsigned long tx_errors;
 	unsigned long rx_packets;
 	unsigned long rx_errors;
};

struct hdlcdrv_ioctl {
	int cmd;
	union {
		struct hdlcdrv_params mp;
		struct hdlcdrv_channel_params cp;
		struct hdlcdrv_channel_state cs;
		struct hdlcdrv_old_channel_state ocs;
		unsigned int calibrate;
		unsigned char bits;
		char modename[128];
		char drivername[32];
	} data;
};

/* -------------------------------------------------------------------- */

/*
 * ioctl values
 */
#define HDLCDRVCTL_GETMODEMPAR       0
#define HDLCDRVCTL_SETMODEMPAR       1
#define HDLCDRVCTL_MODEMPARMASK      2  /* not handled by hdlcdrv */
#define HDLCDRVCTL_GETCHANNELPAR    10
#define HDLCDRVCTL_SETCHANNELPAR    11
#define HDLCDRVCTL_OLDGETSTAT       20
#define HDLCDRVCTL_CALIBRATE        21
#define HDLCDRVCTL_GETSTAT          22

/*
 * these are mainly for debugging purposes
 */
#define HDLCDRVCTL_GETSAMPLES       30
#define HDLCDRVCTL_GETBITS          31

/*
 * not handled by hdlcdrv, but by its depending drivers
 */
#define HDLCDRVCTL_GETMODE          40
#define HDLCDRVCTL_SETMODE          41
#define HDLCDRVCTL_MODELIST         42
#define HDLCDRVCTL_DRIVERNAME       43

/*
 * mask of needed modem parameters, returned by HDLCDRVCTL_MODEMPARMASK
 */
#define HDLCDRV_PARMASK_IOBASE      (1<<0)
#define HDLCDRV_PARMASK_IRQ         (1<<1)
#define HDLCDRV_PARMASK_DMA         (1<<2)
#define HDLCDRV_PARMASK_DMA2        (1<<3)
#define HDLCDRV_PARMASK_SERIOBASE   (1<<4)
#define HDLCDRV_PARMASK_PARIOBASE   (1<<5)
#define HDLCDRV_PARMASK_MIDIIOBASE  (1<<6)

/* -------------------------------------------------------------------- */


/* -------------------------------------------------------------------- */

#endif /* _HDLCDRV_H */

/* -------------------------------------------------------------------- */