00001
00028
#ifndef __ALSA_CONTROL_H
00029
#define __ALSA_CONTROL_H
00030
00031
#ifdef __cplusplus
00032
extern "C" {
00033
#endif
00034
00043 #define SND_CONTROL_DLSYM_VERSION _dlsym_control_001
00044
00046 typedef struct snd_aes_iec958 {
00047 unsigned char status[24];
00048 unsigned char subcode[147];
00049 unsigned char pad;
00050 unsigned char dig_subframe[4];
00051 }
snd_aes_iec958_t;
00052
00054 typedef struct _snd_ctl_card_info
snd_ctl_card_info_t;
00055
00057 typedef struct _snd_ctl_elem_id
snd_ctl_elem_id_t;
00058
00060 typedef struct _snd_ctl_elem_list
snd_ctl_elem_list_t;
00061
00063 typedef struct _snd_ctl_elem_info
snd_ctl_elem_info_t;
00064
00066 typedef struct _snd_ctl_elem_value
snd_ctl_elem_value_t;
00067
00069 typedef struct _snd_ctl_event
snd_ctl_event_t;
00070
00072 typedef enum _snd_ctl_elem_type {
00074
SND_CTL_ELEM_TYPE_NONE = 0,
00076
SND_CTL_ELEM_TYPE_BOOLEAN,
00078
SND_CTL_ELEM_TYPE_INTEGER,
00080
SND_CTL_ELEM_TYPE_ENUMERATED,
00082
SND_CTL_ELEM_TYPE_BYTES,
00084
SND_CTL_ELEM_TYPE_IEC958,
00086
SND_CTL_ELEM_TYPE_INTEGER64,
00087 SND_CTL_ELEM_TYPE_LAST =
SND_CTL_ELEM_TYPE_INTEGER64
00088 }
snd_ctl_elem_type_t;
00089
00091 typedef enum _snd_ctl_elem_iface {
00093
SND_CTL_ELEM_IFACE_CARD = 0,
00095
SND_CTL_ELEM_IFACE_HWDEP,
00097
SND_CTL_ELEM_IFACE_MIXER,
00099
SND_CTL_ELEM_IFACE_PCM,
00101
SND_CTL_ELEM_IFACE_RAWMIDI,
00103
SND_CTL_ELEM_IFACE_TIMER,
00105
SND_CTL_ELEM_IFACE_SEQUENCER,
00106 SND_CTL_ELEM_IFACE_LAST =
SND_CTL_ELEM_IFACE_SEQUENCER
00107 }
snd_ctl_elem_iface_t;
00108
00110 typedef enum _snd_ctl_event_type {
00112
SND_CTL_EVENT_ELEM = 0,
00113 SND_CTL_EVENT_LAST =
SND_CTL_EVENT_ELEM
00114 }
snd_ctl_event_type_t;
00115
00118 #define SND_CTL_EVENT_MASK_REMOVE (~0U)
00119
00120 #define SND_CTL_EVENT_MASK_VALUE (1<<0)
00121
00122 #define SND_CTL_EVENT_MASK_INFO (1<<1)
00123
00124 #define SND_CTL_EVENT_MASK_ADD (1<<2)
00125
00127 #define SND_CTL_NAME_NONE ""
00128
00129 #define SND_CTL_NAME_PLAYBACK "Playback "
00130
00131 #define SND_CTL_NAME_CAPTURE "Capture "
00132
00134 #define SND_CTL_NAME_IEC958_NONE ""
00135
00136 #define SND_CTL_NAME_IEC958_SWITCH "Switch"
00137
00138 #define SND_CTL_NAME_IEC958_VOLUME "Volume"
00139
00140 #define SND_CTL_NAME_IEC958_DEFAULT "Default"
00141
00142 #define SND_CTL_NAME_IEC958_MASK "Mask"
00143
00144 #define SND_CTL_NAME_IEC958_CON_MASK "Con Mask"
00145
00146 #define SND_CTL_NAME_IEC958_PRO_MASK "Pro Mask"
00147
00148 #define SND_CTL_NAME_IEC958_PCM_STREAM "PCM Stream"
00149
00150 #define SND_CTL_NAME_IEC958(expl,direction,what) "IEC958 " expl SND_CTL_NAME_##direction SND_CTL_NAME_IEC958_##what
00151
00153 #define SND_CTL_POWER_MASK 0xff00
00154
00155 #define SND_CTL_POWER_D0 0x0000
00156
00157 #define SND_CTL_POWER_D1 0x0100
00158
00159 #define SND_CTL_POWER_D2 0x0200
00160
00161 #define SND_CTL_POWER_D3 0x0300
00162
00163 #define SND_CTL_POWER_D3hot (SND_CTL_POWER_D3|0x0000)
00164
00165 #define SND_CTL_POWER_D3cold (SND_CTL_POWER_D3|0x0001)
00166
00168 typedef enum _snd_ctl_type {
00170
SND_CTL_TYPE_HW,
00172
SND_CTL_TYPE_SHM,
00174
SND_CTL_TYPE_INET
00175 }
snd_ctl_type_t;
00176
00178 #define SND_CTL_NONBLOCK 0x0001
00179
00181 #define SND_CTL_ASYNC 0x0002
00182
00184 #define SND_CTL_READONLY 0x0004
00185
00187 typedef struct _snd_ctl
snd_ctl_t;
00188
00190 #define SND_SCTL_NOFREE 0x0001
00191
00193 typedef struct _snd_sctl
snd_sctl_t;
00194
00195
int snd_card_load(
int card);
00196
int snd_card_next(
int *card);
00197
int snd_card_get_index(
const char *name);
00198
int snd_card_get_name(
int card,
char **name);
00199
int snd_card_get_longname(
int card,
char **name);
00200
00201
int snd_ctl_open(snd_ctl_t **ctl,
const char *name,
int mode);
00202
int snd_ctl_open_lconf(snd_ctl_t **ctl,
const char *name,
int mode, snd_config_t *lconf);
00203
int snd_ctl_close(snd_ctl_t *ctl);
00204
int snd_ctl_nonblock(snd_ctl_t *ctl,
int nonblock);
00205
int snd_async_add_ctl_handler(snd_async_handler_t **handler, snd_ctl_t *ctl,
00206
snd_async_callback_t callback,
void *private_data);
00207
snd_ctl_t *
snd_async_handler_get_ctl(snd_async_handler_t *handler);
00208
int snd_ctl_poll_descriptors_count(snd_ctl_t *ctl);
00209
int snd_ctl_poll_descriptors(snd_ctl_t *ctl,
struct pollfd *pfds,
unsigned int space);
00210
int snd_ctl_poll_descriptors_revents(snd_ctl_t *ctl,
struct pollfd *pfds,
unsigned int nfds,
unsigned short *revents);
00211
int snd_ctl_subscribe_events(snd_ctl_t *ctl,
int subscribe);
00212
int snd_ctl_card_info(snd_ctl_t *ctl, snd_ctl_card_info_t *info);
00213
int snd_ctl_elem_list(snd_ctl_t *ctl, snd_ctl_elem_list_t * list);
00214
int snd_ctl_elem_info(snd_ctl_t *ctl, snd_ctl_elem_info_t *info);
00215
int snd_ctl_elem_read(snd_ctl_t *ctl, snd_ctl_elem_value_t *value);
00216
int snd_ctl_elem_write(snd_ctl_t *ctl, snd_ctl_elem_value_t *value);
00217
int snd_ctl_elem_lock(snd_ctl_t *ctl, snd_ctl_elem_id_t *
id);
00218
int snd_ctl_elem_unlock(snd_ctl_t *ctl, snd_ctl_elem_id_t *
id);
00219
int snd_ctl_hwdep_next_device(snd_ctl_t *ctl,
int * device);
00220
int snd_ctl_hwdep_info(snd_ctl_t *ctl,
snd_hwdep_info_t * info);
00221
int snd_ctl_pcm_next_device(snd_ctl_t *ctl,
int *device);
00222
int snd_ctl_pcm_info(snd_ctl_t *ctl,
snd_pcm_info_t * info);
00223
int snd_ctl_pcm_prefer_subdevice(snd_ctl_t *ctl,
int subdev);
00224
int snd_ctl_rawmidi_next_device(snd_ctl_t *ctl,
int * device);
00225
int snd_ctl_rawmidi_info(snd_ctl_t *ctl,
snd_rawmidi_info_t * info);
00226
int snd_ctl_rawmidi_prefer_subdevice(snd_ctl_t *ctl,
int subdev);
00227
int snd_ctl_set_power_state(snd_ctl_t *ctl,
unsigned int state);
00228
int snd_ctl_get_power_state(snd_ctl_t *ctl,
unsigned int *state);
00229
00230
int snd_ctl_read(snd_ctl_t *ctl, snd_ctl_event_t *event);
00231
int snd_ctl_wait(snd_ctl_t *ctl,
int timeout);
00232
const char *
snd_ctl_name(snd_ctl_t *ctl);
00233
snd_ctl_type_t snd_ctl_type(snd_ctl_t *ctl);
00234
00235
const char *
snd_ctl_elem_type_name(snd_ctl_elem_type_t type);
00236
const char *
snd_ctl_elem_iface_name(snd_ctl_elem_iface_t iface);
00237
const char *
snd_ctl_event_type_name(snd_ctl_event_type_t type);
00238
00239
unsigned int snd_ctl_event_elem_get_mask(
const snd_ctl_event_t *obj);
00240
unsigned int snd_ctl_event_elem_get_numid(
const snd_ctl_event_t *obj);
00241
void snd_ctl_event_elem_get_id(
const snd_ctl_event_t *obj, snd_ctl_elem_id_t *ptr);
00242
snd_ctl_elem_iface_t snd_ctl_event_elem_get_interface(
const snd_ctl_event_t *obj);
00243
unsigned int snd_ctl_event_elem_get_device(
const snd_ctl_event_t *obj);
00244
unsigned int snd_ctl_event_elem_get_subdevice(
const snd_ctl_event_t *obj);
00245
const char *
snd_ctl_event_elem_get_name(
const snd_ctl_event_t *obj);
00246
unsigned int snd_ctl_event_elem_get_index(
const snd_ctl_event_t *obj);
00247
00248
int snd_ctl_elem_list_alloc_space(snd_ctl_elem_list_t *obj,
unsigned int entries);
00249
void snd_ctl_elem_list_free_space(snd_ctl_elem_list_t *obj);
00250
00251 size_t
snd_ctl_elem_id_sizeof(
void);
00256 #define snd_ctl_elem_id_alloca(ptr) do { assert(ptr); *ptr = (snd_ctl_elem_id_t *) alloca(snd_ctl_elem_id_sizeof()); memset(*ptr, 0, snd_ctl_elem_id_sizeof()); } while (0)
00257
int snd_ctl_elem_id_malloc(snd_ctl_elem_id_t **ptr);
00258
void snd_ctl_elem_id_free(snd_ctl_elem_id_t *obj);
00259
void snd_ctl_elem_id_clear(snd_ctl_elem_id_t *obj);
00260
void snd_ctl_elem_id_copy(snd_ctl_elem_id_t *dst,
const snd_ctl_elem_id_t *src);
00261
unsigned int snd_ctl_elem_id_get_numid(
const snd_ctl_elem_id_t *obj);
00262
snd_ctl_elem_iface_t snd_ctl_elem_id_get_interface(
const snd_ctl_elem_id_t *obj);
00263
unsigned int snd_ctl_elem_id_get_device(
const snd_ctl_elem_id_t *obj);
00264
unsigned int snd_ctl_elem_id_get_subdevice(
const snd_ctl_elem_id_t *obj);
00265
const char *
snd_ctl_elem_id_get_name(
const snd_ctl_elem_id_t *obj);
00266
unsigned int snd_ctl_elem_id_get_index(
const snd_ctl_elem_id_t *obj);
00267
void snd_ctl_elem_id_set_numid(snd_ctl_elem_id_t *obj,
unsigned int val);
00268
void snd_ctl_elem_id_set_interface(snd_ctl_elem_id_t *obj, snd_ctl_elem_iface_t val);
00269
void snd_ctl_elem_id_set_device(snd_ctl_elem_id_t *obj,
unsigned int val);
00270
void snd_ctl_elem_id_set_subdevice(snd_ctl_elem_id_t *obj,
unsigned int val);
00271
void snd_ctl_elem_id_set_name(snd_ctl_elem_id_t *obj,
const char *val);
00272
void snd_ctl_elem_id_set_index(snd_ctl_elem_id_t *obj,
unsigned int val);
00273
00274 size_t
snd_ctl_card_info_sizeof(
void);
00279 #define snd_ctl_card_info_alloca(ptr) do { assert(ptr); *ptr = (snd_ctl_card_info_t *) alloca(snd_ctl_card_info_sizeof()); memset(*ptr, 0, snd_ctl_card_info_sizeof()); } while (0)
00280
int snd_ctl_card_info_malloc(snd_ctl_card_info_t **ptr);
00281
void snd_ctl_card_info_free(snd_ctl_card_info_t *obj);
00282
void snd_ctl_card_info_clear(snd_ctl_card_info_t *obj);
00283
void snd_ctl_card_info_copy(snd_ctl_card_info_t *dst,
const snd_ctl_card_info_t *src);
00284
int snd_ctl_card_info_get_card(
const snd_ctl_card_info_t *obj);
00285
const char *
snd_ctl_card_info_get_id(
const snd_ctl_card_info_t *obj);
00286
const char *
snd_ctl_card_info_get_driver(
const snd_ctl_card_info_t *obj);
00287
const char *
snd_ctl_card_info_get_name(
const snd_ctl_card_info_t *obj);
00288
const char *
snd_ctl_card_info_get_longname(
const snd_ctl_card_info_t *obj);
00289
const char *
snd_ctl_card_info_get_mixername(
const snd_ctl_card_info_t *obj);
00290
const char *
snd_ctl_card_info_get_components(
const snd_ctl_card_info_t *obj);
00291
00292 size_t
snd_ctl_event_sizeof(
void);
00297 #define snd_ctl_event_alloca(ptr) do { assert(ptr); *ptr = (snd_ctl_event_t *) alloca(snd_ctl_event_sizeof()); memset(*ptr, 0, snd_ctl_event_sizeof()); } while (0)
00298
int snd_ctl_event_malloc(snd_ctl_event_t **ptr);
00299
void snd_ctl_event_free(snd_ctl_event_t *obj);
00300
void snd_ctl_event_clear(snd_ctl_event_t *obj);
00301
void snd_ctl_event_copy(snd_ctl_event_t *dst,
const snd_ctl_event_t *src);
00302
snd_ctl_event_type_t snd_ctl_event_get_type(
const snd_ctl_event_t *obj);
00303
00304 size_t
snd_ctl_elem_list_sizeof(
void);
00309 #define snd_ctl_elem_list_alloca(ptr) do { assert(ptr); *ptr = (snd_ctl_elem_list_t *) alloca(snd_ctl_elem_list_sizeof()); memset(*ptr, 0, snd_ctl_elem_list_sizeof()); } while (0)
00310
int snd_ctl_elem_list_malloc(snd_ctl_elem_list_t **ptr);
00311
void snd_ctl_elem_list_free(snd_ctl_elem_list_t *obj);
00312
void snd_ctl_elem_list_clear(snd_ctl_elem_list_t *obj);
00313
void snd_ctl_elem_list_copy(snd_ctl_elem_list_t *dst,
const snd_ctl_elem_list_t *src);
00314
void snd_ctl_elem_list_set_offset(snd_ctl_elem_list_t *obj,
unsigned int val);
00315
unsigned int snd_ctl_elem_list_get_used(
const snd_ctl_elem_list_t *obj);
00316
unsigned int snd_ctl_elem_list_get_count(
const snd_ctl_elem_list_t *obj);
00317
void snd_ctl_elem_list_get_id(
const snd_ctl_elem_list_t *obj,
unsigned int idx, snd_ctl_elem_id_t *ptr);
00318
unsigned int snd_ctl_elem_list_get_numid(
const snd_ctl_elem_list_t *obj,
unsigned int idx);
00319
snd_ctl_elem_iface_t snd_ctl_elem_list_get_interface(
const snd_ctl_elem_list_t *obj,
unsigned int idx);
00320
unsigned int snd_ctl_elem_list_get_device(
const snd_ctl_elem_list_t *obj,
unsigned int idx);
00321
unsigned int snd_ctl_elem_list_get_subdevice(
const snd_ctl_elem_list_t *obj,
unsigned int idx);
00322
const char *
snd_ctl_elem_list_get_name(
const snd_ctl_elem_list_t *obj,
unsigned int idx);
00323
unsigned int snd_ctl_elem_list_get_index(
const snd_ctl_elem_list_t *obj,
unsigned int idx);
00324
00325 size_t
snd_ctl_elem_info_sizeof(
void);
00330 #define snd_ctl_elem_info_alloca(ptr) do { assert(ptr); *ptr = (snd_ctl_elem_info_t *) alloca(snd_ctl_elem_info_sizeof()); memset(*ptr, 0, snd_ctl_elem_info_sizeof()); } while (0)
00331
int snd_ctl_elem_info_malloc(snd_ctl_elem_info_t **ptr);
00332
void snd_ctl_elem_info_free(snd_ctl_elem_info_t *obj);
00333
void snd_ctl_elem_info_clear(snd_ctl_elem_info_t *obj);
00334
void snd_ctl_elem_info_copy(snd_ctl_elem_info_t *dst,
const snd_ctl_elem_info_t *src);
00335
snd_ctl_elem_type_t snd_ctl_elem_info_get_type(
const snd_ctl_elem_info_t *obj);
00336
int snd_ctl_elem_info_is_readable(
const snd_ctl_elem_info_t *obj);
00337
int snd_ctl_elem_info_is_writable(
const snd_ctl_elem_info_t *obj);
00338
int snd_ctl_elem_info_is_volatile(
const snd_ctl_elem_info_t *obj);
00339
int snd_ctl_elem_info_is_inactive(
const snd_ctl_elem_info_t *obj);
00340
int snd_ctl_elem_info_is_locked(
const snd_ctl_elem_info_t *obj);
00341
int snd_ctl_elem_info_is_owner(
const snd_ctl_elem_info_t *obj);
00342 pid_t
snd_ctl_elem_info_get_owner(
const snd_ctl_elem_info_t *obj);
00343
unsigned int snd_ctl_elem_info_get_count(
const snd_ctl_elem_info_t *obj);
00344
long snd_ctl_elem_info_get_min(
const snd_ctl_elem_info_t *obj);
00345
long snd_ctl_elem_info_get_max(
const snd_ctl_elem_info_t *obj);
00346
long snd_ctl_elem_info_get_step(
const snd_ctl_elem_info_t *obj);
00347
long long snd_ctl_elem_info_get_min64(
const snd_ctl_elem_info_t *obj);
00348
long long snd_ctl_elem_info_get_max64(
const snd_ctl_elem_info_t *obj);
00349
long long snd_ctl_elem_info_get_step64(
const snd_ctl_elem_info_t *obj);
00350
unsigned int snd_ctl_elem_info_get_items(
const snd_ctl_elem_info_t *obj);
00351
void snd_ctl_elem_info_set_item(snd_ctl_elem_info_t *obj,
unsigned int val);
00352
const char *
snd_ctl_elem_info_get_item_name(
const snd_ctl_elem_info_t *obj);
00353
int snd_ctl_elem_info_get_dimensions(
const snd_ctl_elem_info_t *obj);
00354
int snd_ctl_elem_info_get_dimension(
const snd_ctl_elem_info_t *obj,
unsigned int idx);
00355
void snd_ctl_elem_info_get_id(
const snd_ctl_elem_info_t *obj, snd_ctl_elem_id_t *ptr);
00356
unsigned int snd_ctl_elem_info_get_numid(
const snd_ctl_elem_info_t *obj);
00357
snd_ctl_elem_iface_t snd_ctl_elem_info_get_interface(
const snd_ctl_elem_info_t *obj);
00358
unsigned int snd_ctl_elem_info_get_device(
const snd_ctl_elem_info_t *obj);
00359
unsigned int snd_ctl_elem_info_get_subdevice(
const snd_ctl_elem_info_t *obj);
00360
const char *
snd_ctl_elem_info_get_name(
const snd_ctl_elem_info_t *obj);
00361
unsigned int snd_ctl_elem_info_get_index(
const snd_ctl_elem_info_t *obj);
00362
void snd_ctl_elem_info_set_id(snd_ctl_elem_info_t *obj,
const snd_ctl_elem_id_t *ptr);
00363
void snd_ctl_elem_info_set_numid(snd_ctl_elem_info_t *obj,
unsigned int val);
00364
void snd_ctl_elem_info_set_interface(snd_ctl_elem_info_t *obj, snd_ctl_elem_iface_t val);
00365
void snd_ctl_elem_info_set_device(snd_ctl_elem_info_t *obj,
unsigned int val);
00366
void snd_ctl_elem_info_set_subdevice(snd_ctl_elem_info_t *obj,
unsigned int val);
00367
void snd_ctl_elem_info_set_name(snd_ctl_elem_info_t *obj,
const char *val);
00368
void snd_ctl_elem_info_set_index(snd_ctl_elem_info_t *obj,
unsigned int val);
00369
00370 size_t
snd_ctl_elem_value_sizeof(
void);
00375 #define snd_ctl_elem_value_alloca(ptr) do { assert(ptr); *ptr = (snd_ctl_elem_value_t *) alloca(snd_ctl_elem_value_sizeof()); memset(*ptr, 0, snd_ctl_elem_value_sizeof()); } while (0)
00376
int snd_ctl_elem_value_malloc(snd_ctl_elem_value_t **ptr);
00377
void snd_ctl_elem_value_free(snd_ctl_elem_value_t *obj);
00378
void snd_ctl_elem_value_clear(snd_ctl_elem_value_t *obj);
00379
void snd_ctl_elem_value_copy(snd_ctl_elem_value_t *dst,
const snd_ctl_elem_value_t *src);
00380
void snd_ctl_elem_value_get_id(
const snd_ctl_elem_value_t *obj, snd_ctl_elem_id_t *ptr);
00381
unsigned int snd_ctl_elem_value_get_numid(
const snd_ctl_elem_value_t *obj);
00382
snd_ctl_elem_iface_t snd_ctl_elem_value_get_interface(
const snd_ctl_elem_value_t *obj);
00383
unsigned int snd_ctl_elem_value_get_device(
const snd_ctl_elem_value_t *obj);
00384
unsigned int snd_ctl_elem_value_get_subdevice(
const snd_ctl_elem_value_t *obj);
00385
const char *
snd_ctl_elem_value_get_name(
const snd_ctl_elem_value_t *obj);
00386
unsigned int snd_ctl_elem_value_get_index(
const snd_ctl_elem_value_t *obj);
00387
void snd_ctl_elem_value_set_id(snd_ctl_elem_value_t *obj,
const snd_ctl_elem_id_t *ptr);
00388
void snd_ctl_elem_value_set_numid(snd_ctl_elem_value_t *obj,
unsigned int val);
00389
void snd_ctl_elem_value_set_interface(snd_ctl_elem_value_t *obj, snd_ctl_elem_iface_t val);
00390
void snd_ctl_elem_value_set_device(snd_ctl_elem_value_t *obj,
unsigned int val);
00391
void snd_ctl_elem_value_set_subdevice(snd_ctl_elem_value_t *obj,
unsigned int val);
00392
void snd_ctl_elem_value_set_name(snd_ctl_elem_value_t *obj,
const char *val);
00393
void snd_ctl_elem_value_set_index(snd_ctl_elem_value_t *obj,
unsigned int val);
00394
int snd_ctl_elem_value_get_boolean(
const snd_ctl_elem_value_t *obj,
unsigned int idx);
00395
long snd_ctl_elem_value_get_integer(
const snd_ctl_elem_value_t *obj,
unsigned int idx);
00396
long long snd_ctl_elem_value_get_integer64(
const snd_ctl_elem_value_t *obj,
unsigned int idx);
00397
unsigned int snd_ctl_elem_value_get_enumerated(
const snd_ctl_elem_value_t *obj,
unsigned int idx);
00398
unsigned char snd_ctl_elem_value_get_byte(
const snd_ctl_elem_value_t *obj,
unsigned int idx);
00399
void snd_ctl_elem_value_set_boolean(snd_ctl_elem_value_t *obj,
unsigned int idx,
long val);
00400
void snd_ctl_elem_value_set_integer(snd_ctl_elem_value_t *obj,
unsigned int idx,
long val);
00401
void snd_ctl_elem_value_set_integer64(snd_ctl_elem_value_t *obj,
unsigned int idx,
long long val);
00402
void snd_ctl_elem_value_set_enumerated(snd_ctl_elem_value_t *obj,
unsigned int idx,
unsigned int val);
00403
void snd_ctl_elem_value_set_byte(snd_ctl_elem_value_t *obj,
unsigned int idx,
unsigned char val);
00404
void snd_ctl_elem_set_bytes(snd_ctl_elem_value_t *obj,
void *data, size_t size);
00405
const void *
snd_ctl_elem_value_get_bytes(
const snd_ctl_elem_value_t *obj);
00406
void snd_ctl_elem_value_get_iec958(
const snd_ctl_elem_value_t *obj,
snd_aes_iec958_t *ptr);
00407
void snd_ctl_elem_value_set_iec958(snd_ctl_elem_value_t *obj,
const snd_aes_iec958_t *ptr);
00408
00418 typedef struct _snd_hctl_elem
snd_hctl_elem_t;
00419
00421 typedef struct _snd_hctl
snd_hctl_t;
00422
00429 typedef int (*
snd_hctl_compare_t)(
const snd_hctl_elem_t *e1,
00430
const snd_hctl_elem_t *e2);
00431
int snd_hctl_compare_fast(
const snd_hctl_elem_t *c1,
00432
const snd_hctl_elem_t *c2);
00440 typedef int (*
snd_hctl_callback_t)(
snd_hctl_t *hctl,
00441
unsigned int mask,
00442
snd_hctl_elem_t *elem);
00449 typedef int (*
snd_hctl_elem_callback_t)(
snd_hctl_elem_t *elem,
00450
unsigned int mask);
00451
00452
int snd_hctl_open(snd_hctl_t **hctl,
const char *name,
int mode);
00453
int snd_hctl_open_ctl(snd_hctl_t **hctlp, snd_ctl_t *ctl);
00454
int snd_hctl_close(snd_hctl_t *hctl);
00455
int snd_hctl_nonblock(snd_hctl_t *hctl,
int nonblock);
00456
int snd_hctl_poll_descriptors_count(snd_hctl_t *hctl);
00457
int snd_hctl_poll_descriptors(snd_hctl_t *hctl,
struct pollfd *pfds,
unsigned int space);
00458
int snd_hctl_poll_descriptors_revents(snd_hctl_t *ctl,
struct pollfd *pfds,
unsigned int nfds,
unsigned short *revents);
00459
unsigned int snd_hctl_get_count(snd_hctl_t *hctl);
00460
int snd_hctl_set_compare(snd_hctl_t *hctl, snd_hctl_compare_t hsort);
00461
snd_hctl_elem_t *
snd_hctl_first_elem(snd_hctl_t *hctl);
00462
snd_hctl_elem_t *
snd_hctl_last_elem(snd_hctl_t *hctl);
00463
snd_hctl_elem_t *
snd_hctl_find_elem(snd_hctl_t *hctl,
const snd_ctl_elem_id_t *
id);
00464
void snd_hctl_set_callback(snd_hctl_t *hctl, snd_hctl_callback_t callback);
00465
void snd_hctl_set_callback_private(snd_hctl_t *hctl,
void *data);
00466
void *
snd_hctl_get_callback_private(snd_hctl_t *hctl);
00467
int snd_hctl_load(snd_hctl_t *hctl);
00468
int snd_hctl_free(snd_hctl_t *hctl);
00469
int snd_hctl_handle_events(snd_hctl_t *hctl);
00470
const char *
snd_hctl_name(snd_hctl_t *hctl);
00471
int snd_hctl_wait(snd_hctl_t *hctl,
int timeout);
00472
snd_ctl_t *
snd_hctl_ctl(snd_hctl_t *hctl);
00473
00474
snd_hctl_elem_t *
snd_hctl_elem_next(snd_hctl_elem_t *elem);
00475
snd_hctl_elem_t *
snd_hctl_elem_prev(snd_hctl_elem_t *elem);
00476
int snd_hctl_elem_info(snd_hctl_elem_t *elem, snd_ctl_elem_info_t * info);
00477
int snd_hctl_elem_read(snd_hctl_elem_t *elem, snd_ctl_elem_value_t * value);
00478
int snd_hctl_elem_write(snd_hctl_elem_t *elem, snd_ctl_elem_value_t * value);
00479
00480
snd_hctl_t *
snd_hctl_elem_get_hctl(snd_hctl_elem_t *elem);
00481
00482
void snd_hctl_elem_get_id(
const snd_hctl_elem_t *obj, snd_ctl_elem_id_t *ptr);
00483
unsigned int snd_hctl_elem_get_numid(
const snd_hctl_elem_t *obj);
00484
snd_ctl_elem_iface_t snd_hctl_elem_get_interface(
const snd_hctl_elem_t *obj);
00485
unsigned int snd_hctl_elem_get_device(
const snd_hctl_elem_t *obj);
00486
unsigned int snd_hctl_elem_get_subdevice(
const snd_hctl_elem_t *obj);
00487
const char *
snd_hctl_elem_get_name(
const snd_hctl_elem_t *obj);
00488
unsigned int snd_hctl_elem_get_index(
const snd_hctl_elem_t *obj);
00489
void snd_hctl_elem_set_callback(snd_hctl_elem_t *obj, snd_hctl_elem_callback_t val);
00490
void *
snd_hctl_elem_get_callback_private(
const snd_hctl_elem_t *obj);
00491
void snd_hctl_elem_set_callback_private(snd_hctl_elem_t *obj,
void * val);
00492
00504
int snd_sctl_build(snd_sctl_t **ctl, snd_ctl_t *handle, snd_config_t *config,
00505 snd_config_t *private_data,
int mode);
00506
int snd_sctl_free(snd_sctl_t *handle);
00507
int snd_sctl_install(snd_sctl_t *handle);
00508
int snd_sctl_remove(snd_sctl_t *handle);
00509
00512
#ifdef __cplusplus
00513
}
00514
#endif
00515
00516
#endif