home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
Fresh Fish 4
/
FreshFish_May-June1994.bin
/
useful
/
dist
/
cbm
/
v39
/
include
/
exec
/
io.h
< prev
next >
Wrap
C/C++ Source or Header
|
1992-09-24
|
2KB
|
62 lines
#ifndef EXEC_IO_H
#define EXEC_IO_H
/*
** $VER: io.h 39.0 (15.10.91)
** Includes Release 39.108
**
** Message structures used for device communication
**
** (C) Copyright 1985-1992 Commodore-Amiga, Inc.
** All Rights Reserved
*/
#ifndef EXEC_PORTS_H
#include "exec/ports.h"
#endif /* EXEC_PORTS_H */
struct IORequest {
struct Message io_Message;
struct Device *io_Device; /* device node pointer */
struct Unit *io_Unit; /* unit (driver private)*/
UWORD io_Command; /* device command */
UBYTE io_Flags;
BYTE io_Error; /* error or warning num */
};
struct IOStdReq {
struct Message io_Message;
struct Device *io_Device; /* device node pointer */
struct Unit *io_Unit; /* unit (driver private)*/
UWORD io_Command; /* device command */
UBYTE io_Flags;
BYTE io_Error; /* error or warning num */
ULONG io_Actual; /* actual number of bytes transferred */
ULONG io_Length; /* requested number bytes transferred*/
APTR io_Data; /* points to data area */
ULONG io_Offset; /* offset for block structured devices */
};
/* library vector offsets for device reserved vectors */
#define DEV_BEGINIO (-30)
#define DEV_ABORTIO (-36)
/* io_Flags defined bits */
#define IOB_QUICK 0
#define IOF_QUICK (1<<0)
#define CMD_INVALID 0
#define CMD_RESET 1
#define CMD_READ 2
#define CMD_WRITE 3
#define CMD_UPDATE 4
#define CMD_CLEAR 5
#define CMD_STOP 6
#define CMD_START 7
#define CMD_FLUSH 8
#define CMD_NONSTD 9
#endif /* EXEC_IO_H */