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- #ifndef EXEC_IO_H
- #define EXEC_IO_H
- /*
- ** $Filename: exec/io.h $
- ** $Release: 2.04 Includes, V37.4 $
- ** $Revision: 36.4 $
- ** $Date: 90/05/10 $
- **
- ** Message structures used for device communication
- **
- ** (C) Copyright 1985-1991 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 */
-