libs/alsa-lib-1.0.13/src/mixer/simple_abst.c File Reference

Mixer Simple Element Class Interface - Module Abstraction. More...

#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include <fcntl.h>
#include <sys/ioctl.h>
#include <math.h>
#include <dlfcn.h>
#include "config.h"
#include "asoundlib.h"
#include "mixer_simple.h"

Include dependency graph for simple_abst.c:

Go to the source code of this file.

Data Structures
struct	_class_priv
Defines
#define	SO_PATH   PKGLIBDIR "/smixer"
Typedefs
typedef _class_priv	class_priv_t
typedef int(*)	snd_mixer_sbasic_init_t (snd_mixer_class_t *class)
Functions
static int	try_open (snd_mixer_class_t *class, const char *lib)
static int	match (snd_mixer_class_t *class, const char *lib, const char *searchl)
static int	find_module (snd_mixer_class_t *class, snd_config_t *top)
static void	private_free (snd_mixer_class_t *class)
int	snd_mixer_simple_basic_register (snd_mixer_t *mixer, struct snd_mixer_selem_regopt *options, snd_mixer_class_t **classp)
	Register mixer simple element class - basic abstraction.
int	snd_mixer_sbasic_info (const snd_mixer_class_t *class, sm_class_basic_t *info)
	Basic Mixer Abstraction - Get information about device.
void *	snd_mixer_sbasic_get_private (const snd_mixer_class_t *class)
	Get private data for basic abstraction.
void	snd_mixer_sbasic_set_private (const snd_mixer_class_t *class, void *private_data)
	Set private data for basic abstraction.
void	snd_mixer_sbasic_set_private_free (const snd_mixer_class_t *class, void(*private_free)(snd_mixer_class_t *class))
	Set private data free callback for basic abstraction.

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Detailed Description

Mixer Simple Element Class Interface - Module Abstraction.

Author:

Jaroslav Kysela <perex@suse.cz>

Date:

2005

Mixer simple element class interface.

Definition in file simple_abst.c.

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Define Documentation

#define SO_PATH   PKGLIBDIR "/smixer"

Definition at line 44 of file simple_abst.c.

Referenced by try_open().

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Typedef Documentation

typedef struct _class_priv class_priv_t

typedef int(*) snd_mixer_sbasic_init_t(snd_mixer_class_t *class)

Definition at line 57 of file simple_abst.c.

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Function Documentation

static int find_module	(	snd_mixer_class_t *	class,
		snd_config_t *	top
	)			[static]

Definition at line 129 of file simple_abst.c.

References id, match(), n, snd_config_get_id(), snd_config_get_string(), and snd_config_iterator_entry().

Referenced by snd_mixer_simple_basic_register().

static int match	(	snd_mixer_class_t *	class,
		const char *	lib,
		const char *	searchl
	)			[static]

Definition at line 110 of file simple_abst.c.

References _class_priv::info, and try_open().

Referenced by find_module(), and handle_labels().

static void private_free

(

snd_mixer_class_t *

class

)

[static]

Definition at line 169 of file simple_abst.c.

References _class_priv::attach_flag, _class_priv::ctl, _class_priv::device, _class_priv::dlhandle, free(), _class_priv::hctl, _class_priv::info, and _class_priv::private_free.

Referenced by snd_mixer_simple_basic_register().

void* snd_mixer_sbasic_get_private

(

const snd_mixer_class_t *

class

)

Get private data for basic abstraction.

Parameters:

class

Mixer class

Returns:

private data

Definition at line 305 of file simple_abst.c.

References _class_priv::private_data.

int snd_mixer_sbasic_info	(	const snd_mixer_class_t *	class,
		sm_class_basic_t *	info
	)

Basic Mixer Abstraction - Get information about device.

Parameters:

	class	Mixer class
	info	Info structure

Returns:

0 on success otherwise a negative error code

Definition at line 287 of file simple_abst.c.

References _class_priv::ctl, _class_priv::device, _class_priv::hctl, and _class_priv::info.

void snd_mixer_sbasic_set_private	(	const snd_mixer_class_t *	class,
		void *	private_data
	)

Set private data for basic abstraction.

Parameters:

	class	Mixer class
	private_data	Private data

Definition at line 319 of file simple_abst.c.

References _class_priv::private_data.

void snd_mixer_sbasic_set_private_free	(	const snd_mixer_class_t *	class,
		void(*)(snd_mixer_class_t *class)	private_free
	)

Set private data free callback for basic abstraction.

Parameters:

	class	Mixer class
	private_free	free callback for private data

Definition at line 334 of file simple_abst.c.

References _class_priv::private_free.

int snd_mixer_simple_basic_register	(	snd_mixer_t *	mixer,
		struct snd_mixer_selem_regopt *	options,
		snd_mixer_class_t **	classp
	)

Register mixer simple element class - basic abstraction.

Parameters:

	mixer	Mixer handle
	options	Options container
	classp	Pointer to returned mixer simple element class handle (or NULL

Returns:

0 on success otherwise a negative error code

Definition at line 196 of file simple_abst.c.

References find_module(), free(), private_free(), snd_config_delete(), snd_config_load(), and snd_config_top().

static int try_open	(	snd_mixer_class_t *	class,
		const char *	lib
	)			[static]

Definition at line 61 of file simple_abst.c.

References _class_priv::dlhandle, free(), malloc(), and SO_PATH.

Referenced by match().

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