Access Mask Functions

Macros
#define	snd_pcm_access_mask_alloca(ptr)
	allocate an empty snd_pcm_access_mask_t using standard alloca More...

Functions
size_t	snd_pcm_access_mask_sizeof (void)
	get size of snd_pcm_access_mask_t More...
int	snd_pcm_access_mask_malloc (snd_pcm_access_mask_t **ptr)
	allocate an empty snd_pcm_access_mask_t using standard malloc More...
void	snd_pcm_access_mask_free (snd_pcm_access_mask_t *obj)
	frees a previously allocated snd_pcm_access_mask_t More...
void	snd_pcm_access_mask_copy (snd_pcm_access_mask_t *dst, const snd_pcm_access_mask_t *src)
	copy one snd_pcm_access_mask_t to another More...
void	snd_pcm_access_mask_none (snd_pcm_access_mask_t *mask)
	reset all bits in a snd_pcm_access_mask_t More...
void	snd_pcm_access_mask_any (snd_pcm_access_mask_t *mask)
	set all bits in a snd_pcm_access_mask_t More...
int	snd_pcm_access_mask_test (const snd_pcm_access_mask_t *mask, snd_pcm_access_t val)
	test the presence of an access type in a snd_pcm_access_mask_t More...
int	snd_pcm_access_mask_empty (const snd_pcm_access_mask_t *mask)
	test, if given a snd_pcm_access_mask_t is empty More...
void	snd_pcm_access_mask_set (snd_pcm_access_mask_t *mask, snd_pcm_access_t val)
	make an access type present in a snd_pcm_access_mask_t More...
void	snd_pcm_access_mask_reset (snd_pcm_access_mask_t *mask, snd_pcm_access_t val)
	make an access type missing from a snd_pcm_access_mask_t More...

Detailed Description

See the PCM (digital audio) interface page for more details.

Macro Definition Documentation

snd_pcm_access_mask_alloca

#define snd_pcm_access_mask_alloca

(

ptr

)

allocate an empty snd_pcm_access_mask_t using standard alloca

Parameters

ptr	returned pointer

Function Documentation

snd_pcm_access_mask_any()

void snd_pcm_access_mask_any

(

snd_pcm_access_mask_t *

mask

)

set all bits in a snd_pcm_access_mask_t

Parameters

mask	pointer to mask

snd_pcm_access_mask_copy()

void snd_pcm_access_mask_copy	(	snd_pcm_access_mask_t *	dst,
		const snd_pcm_access_mask_t *	src
	)

copy one snd_pcm_access_mask_t to another

Parameters

dst	pointer to destination
src	pointer to source

snd_pcm_access_mask_empty()

int snd_pcm_access_mask_empty

(

const snd_pcm_access_mask_t *

mask

)

test, if given a snd_pcm_access_mask_t is empty

Parameters

mask	pointer to mask

Return values

0	not empty
1	empty

snd_pcm_access_mask_free()

void snd_pcm_access_mask_free

(

snd_pcm_access_mask_t *

obj

)

frees a previously allocated snd_pcm_access_mask_t

Parameters

obj	pointer to object to free

snd_pcm_access_mask_malloc()

int snd_pcm_access_mask_malloc

(

snd_pcm_access_mask_t **

ptr

)

allocate an empty snd_pcm_access_mask_t using standard malloc

Parameters

ptr	returned pointer

Returns

0 on success otherwise negative error code

snd_pcm_access_mask_none()

void snd_pcm_access_mask_none

(

snd_pcm_access_mask_t *

mask

)

reset all bits in a snd_pcm_access_mask_t

Parameters

mask	pointer to mask

snd_pcm_access_mask_reset()

void snd_pcm_access_mask_reset	(	snd_pcm_access_mask_t *	mask,
		snd_pcm_access_t	val
	)

make an access type missing from a snd_pcm_access_mask_t

Parameters

mask	pointer to mask
val	access type

snd_pcm_access_mask_set()

void snd_pcm_access_mask_set	(	snd_pcm_access_mask_t *	mask,
		snd_pcm_access_t	val
	)

make an access type present in a snd_pcm_access_mask_t

Parameters

mask	pointer to mask
val	access type

snd_pcm_access_mask_sizeof()

size_t snd_pcm_access_mask_sizeof

(

void

)

get size of snd_pcm_access_mask_t

Returns

size in bytes

snd_pcm_access_mask_test()

int snd_pcm_access_mask_test	(	const snd_pcm_access_mask_t *	mask,
		snd_pcm_access_t	val
	)

test the presence of an access type in a snd_pcm_access_mask_t

Parameters

mask	pointer to mask
val	access type