huawei-mrd-kernel/sound/usb/line6/midibuf.h

35 lines
1 KiB
C

/*
* Line 6 Linux USB driver
*
* Copyright (C) 2004-2010 Markus Grabner (grabner@icg.tugraz.at)
*
* This program 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, version 2.
*
*/
#ifndef MIDIBUF_H
#define MIDIBUF_H
struct midi_buffer {
unsigned char *buf;
int size;
int split;
int pos_read, pos_write;
int full;
int command_prev;
};
extern int line6_midibuf_bytes_used(struct midi_buffer *mb);
extern int line6_midibuf_bytes_free(struct midi_buffer *mb);
extern void line6_midibuf_destroy(struct midi_buffer *mb);
extern int line6_midibuf_ignore(struct midi_buffer *mb, int length);
extern int line6_midibuf_init(struct midi_buffer *mb, int size, int split);
extern int line6_midibuf_read(struct midi_buffer *mb, unsigned char *data,
int length);
extern void line6_midibuf_reset(struct midi_buffer *mb);
extern int line6_midibuf_write(struct midi_buffer *mb, unsigned char *data,
int length);
#endif