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ctl: support extra information to user-defined element set

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In ALSA control feature, information of an element includes extra fields
to type-specific parameters; i.e. dimension. The fields can be extended in
future.

Meanwhile, current APIs to add user-defined element set can not support
such an extended fields. This may cause inconveniences in future.

This commit supports the fields, by changing APIs for element set.

Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Sakamoto 2016-06-29 22:42:59 +09:00 • committed by Takashi Iwai
parent 7117d22cf2
commit f9e6011255
3 changed files with 92 additions and 113 deletions
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10
include/control.h
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@ -423,24 +423,24 @@ void snd_ctl_elem_info_set_subdevice(snd_ctl_elem_info_t *obj, unsigned int val)
void snd_ctl_elem_info_set_name(snd_ctl_elem_info_t *obj, const char *val);
void snd_ctl_elem_info_set_index(snd_ctl_elem_info_t *obj, unsigned int val);
int snd_ctl_elem_add_integer_set(snd_ctl_t *ctl, snd_ctl_elem_id_t *id,
int snd_ctl_elem_add_integer_set(snd_ctl_t *ctl, snd_ctl_elem_info_t *info,
unsigned int element_count,
unsigned int member_count,
long min, long max, long step);
int snd_ctl_elem_add_integer64_set(snd_ctl_t *ctl, snd_ctl_elem_id_t *id,
int snd_ctl_elem_add_integer64_set(snd_ctl_t *ctl, snd_ctl_elem_info_t *info,
unsigned int element_count,
unsigned int member_count,
long long min, long long max,
long long step);
int snd_ctl_elem_add_boolean_set(snd_ctl_t *ctl, snd_ctl_elem_id_t *id,
int snd_ctl_elem_add_boolean_set(snd_ctl_t *ctl, snd_ctl_elem_info_t *info,
unsigned int element_count,
unsigned int member_count);
int snd_ctl_elem_add_enumerated_set(snd_ctl_t *ctl, snd_ctl_elem_id_t *id,
int snd_ctl_elem_add_enumerated_set(snd_ctl_t *ctl, snd_ctl_elem_info_t *info,
unsigned int element_count,
unsigned int member_count,
unsigned int items,
const char *const labels[]);
int snd_ctl_elem_add_bytes_set(snd_ctl_t *ctl, snd_ctl_elem_id_t *id,
int snd_ctl_elem_add_bytes_set(snd_ctl_t *ctl, snd_ctl_elem_info_t *info,
unsigned int element_count,
unsigned int member_count);