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#ifndef __SOUND_INFO_H
#define __SOUND_INFO_H
/*
* Header file for info interface
* Copyright (c) by Jaroslav Kysela <perex@perex.cz>
*
*
* 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; either version 2 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
#include <linux/poll.h>
/* buffer for information */
struct snd_info_buffer {
char *buffer; /* pointer to begin of buffer */
unsigned int curr; /* current position in buffer */
unsigned int size; /* current size */
unsigned int len; /* total length of buffer */
int stop; /* stop flag */
int error; /* error code */
};
#define SNDRV_INFO_CONTENT_TEXT 0
#define SNDRV_INFO_CONTENT_DATA 1
struct snd_info_entry;
struct snd_info_entry_text {
void (*read)(struct snd_info_entry *entry,
struct snd_info_buffer *buffer);
void (*write)(struct snd_info_entry *entry,
struct snd_info_buffer *buffer);
};
struct snd_info_entry_ops {
int (*open)(struct snd_info_entry *entry,
unsigned short mode, void **file_private_data);
int (*release)(struct snd_info_entry *entry,
unsigned short mode, void *file_private_data);
ssize_t (*read)(struct snd_info_entry *entry, void *file_private_data,
struct file *file, char __user *buf,
size_t count, loff_t pos);
ssize_t (*write)(struct snd_info_entry *entry, void *file_private_data,
struct file *file, const char __user *buf,
size_t count, loff_t pos);
loff_t (*llseek)(struct snd_info_entry *entry,
void *file_private_data, struct file *file,
loff_t offset, int orig);
unsigned int (*poll)(struct snd_info_entry *entry,
void *file_private_data, struct file *file,
poll_table *wait);
int (*ioctl)(struct snd_info_entry *entry, void *file_private_data,
struct file *file, unsigned int cmd, unsigned long arg);
int (*mmap)(struct snd_info_entry *entry, void *file_private_data,
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