-/****************************************************************************
- * *
- * control.h *
- * Control Interface *
- * *
- ****************************************************************************/
-
-typedef struct sndrv_aes_iec958 snd_aes_iec958_t;
+/**
+ * \file include/control.h
+ * \brief Application interface library for the ALSA driver
+ * \author Jaroslav Kysela <perex@perex.cz>
+ * \author Abramo Bagnara <abramo@alsa-project.org>
+ * \author Takashi Iwai <tiwai@suse.de>
+ * \date 1998-2001
+ *
+ * Application interface library for the ALSA driver
+ */
+/*
+ * This library is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as
+ * published by the Free Software Foundation; either version 2.1 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 Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ */
+
+#ifndef __ALSA_CONTROL_H
+#define __ALSA_CONTROL_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * \defgroup Control Control Interface
+ * The control interface.
+ * See \ref control page for more details.
+ * \{
+ */
+
+/** dlsym version for interface entry callback */
+#define SND_CONTROL_DLSYM_VERSION _dlsym_control_001
+
+/** IEC958 structure */
+typedef struct snd_aes_iec958 {
+ unsigned char status[24]; /**< AES/IEC958 channel status bits */
+ unsigned char subcode[147]; /**< AES/IEC958 subcode bits */
+ unsigned char pad; /**< nothing */
+ unsigned char dig_subframe[4]; /**< AES/IEC958 subframe bits */
+} snd_aes_iec958_t;
+
+/** CTL card info container */
typedef struct _snd_ctl_card_info snd_ctl_card_info_t;
+
+/** CTL element identifier container */
typedef struct _snd_ctl_elem_id snd_ctl_elem_id_t;
+
+/** CTL element identifier list container */
typedef struct _snd_ctl_elem_list snd_ctl_elem_list_t;
+
+/** CTL element info container */
typedef struct _snd_ctl_elem_info snd_ctl_elem_info_t;
+
+/** CTL element value container */
typedef struct _snd_ctl_elem_value snd_ctl_elem_value_t;
+
+/** CTL event container */
typedef struct _snd_ctl_event snd_ctl_event_t;
-#ifdef SND_ENUM_TYPECHECK
-typedef struct __snd_card_type *snd_card_type_t;
-typedef struct __snd_ctl_elem_type *snd_ctl_elem_type_t;
-typedef struct __snd_ctl_elem_iface *snd_ctl_elem_iface_t;
-typedef struct __snd_ctl_event_type *snd_ctl_event_type_t;
-#else
-typedef enum sndrv_card_type snd_card_type_t;
-typedef enum sndrv_ctl_elem_type snd_ctl_elem_type_t;
-typedef enum sndrv_ctl_elem_iface snd_ctl_elem_iface_t;
-typedef enum sndrv_ctl_event_type snd_ctl_event_type_t;
-#endif
+/** CTL element type */
+typedef enum _snd_ctl_elem_type {
+ /** Invalid type */
+ SND_CTL_ELEM_TYPE_NONE = 0,
+ /** Boolean contents */
+ SND_CTL_ELEM_TYPE_BOOLEAN,
+ /** Integer contents */
+ SND_CTL_ELEM_TYPE_INTEGER,
+ /** Enumerated contents */
+ SND_CTL_ELEM_TYPE_ENUMERATED,
+ /** Bytes contents */
+ SND_CTL_ELEM_TYPE_BYTES,
+ /** IEC958 (S/PDIF) setting content */
+ SND_CTL_ELEM_TYPE_IEC958,
+ /** 64-bit integer contents */
+ SND_CTL_ELEM_TYPE_INTEGER64,
+ SND_CTL_ELEM_TYPE_LAST = SND_CTL_ELEM_TYPE_INTEGER64
+} snd_ctl_elem_type_t;
+
+/** CTL related interface */
+typedef enum _snd_ctl_elem_iface {
+ /** Card level */
+ SND_CTL_ELEM_IFACE_CARD = 0,
+ /** Hardware dependent device */
+ SND_CTL_ELEM_IFACE_HWDEP,
+ /** Mixer */
+ SND_CTL_ELEM_IFACE_MIXER,
+ /** PCM */
+ SND_CTL_ELEM_IFACE_PCM,
+ /** RawMidi */
+ SND_CTL_ELEM_IFACE_RAWMIDI,
+ /** Timer */
+ SND_CTL_ELEM_IFACE_TIMER,
+ /** Sequencer */
+ SND_CTL_ELEM_IFACE_SEQUENCER,
+ SND_CTL_ELEM_IFACE_LAST = SND_CTL_ELEM_IFACE_SEQUENCER
+} snd_ctl_elem_iface_t;
+
+/** Event class */
+typedef enum _snd_ctl_event_type {
+ /** Elements related event */
+ SND_CTL_EVENT_ELEM = 0,
+ SND_CTL_EVENT_LAST = SND_CTL_EVENT_ELEM
+}snd_ctl_event_type_t;
+
+/** Element has been removed (Warning: test this first and if set don't
+ * test the other masks) \hideinitializer */
+#define SND_CTL_EVENT_MASK_REMOVE (~0U)
+/** Element value has been changed \hideinitializer */
+#define SND_CTL_EVENT_MASK_VALUE (1<<0)
+/** Element info has been changed \hideinitializer */
+#define SND_CTL_EVENT_MASK_INFO (1<<1)
+/** Element has been added \hideinitializer */
+#define SND_CTL_EVENT_MASK_ADD (1<<2)
+/** Element's TLV value has been changed \hideinitializer */
+#define SND_CTL_EVENT_MASK_TLV (1<<3)
+
+/** CTL name helper */
+#define SND_CTL_NAME_NONE ""
+/** CTL name helper */
+#define SND_CTL_NAME_PLAYBACK "Playback "
+/** CTL name helper */
+#define SND_CTL_NAME_CAPTURE "Capture "
+
+/** CTL name helper */
+#define SND_CTL_NAME_IEC958_NONE ""
+/** CTL name helper */
+#define SND_CTL_NAME_IEC958_SWITCH "Switch"
+/** CTL name helper */
+#define SND_CTL_NAME_IEC958_VOLUME "Volume"
+/** CTL name helper */
+#define SND_CTL_NAME_IEC958_DEFAULT "Default"
+/** CTL name helper */
+#define SND_CTL_NAME_IEC958_MASK "Mask"
+/** CTL name helper */
+#define SND_CTL_NAME_IEC958_CON_MASK "Con Mask"
+/** CTL name helper */
+#define SND_CTL_NAME_IEC958_PRO_MASK "Pro Mask"
+/** CTL name helper */
+#define SND_CTL_NAME_IEC958_PCM_STREAM "PCM Stream"
+/** Element name for IEC958 (S/PDIF) */
+#define SND_CTL_NAME_IEC958(expl,direction,what) "IEC958 " expl SND_CTL_NAME_##direction SND_CTL_NAME_IEC958_##what
+
+/** Mask for the major Power State identifier */
+#define SND_CTL_POWER_MASK 0xff00
+/** ACPI/PCI Power State D0 */
+#define SND_CTL_POWER_D0 0x0000
+/** ACPI/PCI Power State D1 */
+#define SND_CTL_POWER_D1 0x0100
+/** ACPI/PCI Power State D2 */
+#define SND_CTL_POWER_D2 0x0200
+/** ACPI/PCI Power State D3 */
+#define SND_CTL_POWER_D3 0x0300
+/** ACPI/PCI Power State D3hot */
+#define SND_CTL_POWER_D3hot (SND_CTL_POWER_D3|0x0000)
+/** ACPI/PCI Power State D3cold */
+#define SND_CTL_POWER_D3cold (SND_CTL_POWER_D3|0x0001)
+
+/** TLV type - Container */
+#define SND_CTL_TLVT_CONTAINER 0x0000
+/** TLV type - basic dB scale */
+#define SND_CTL_TLVT_DB_SCALE 0x0001
+/** TLV type - linear volume */
+#define SND_CTL_TLVT_DB_LINEAR 0x0002
+/** TLV type - dB range container */
+#define SND_CTL_TLVT_DB_RANGE 0x0003
+/** TLV type - dB scale specified by min/max values */
+#define SND_CTL_TLVT_DB_MINMAX 0x0004
+/** TLV type - dB scale specified by min/max values (with mute) */
+#define SND_CTL_TLVT_DB_MINMAX_MUTE 0x0005
+
+/** Mute state */
+#define SND_CTL_TLV_DB_GAIN_MUTE -9999999
-#define SND_CARD_TYPE_GUS_CLASSIC ((snd_card_type_t) SNDRV_CARD_TYPE_GUS_CLASSIC)
-#define SND_CARD_TYPE_GUS_EXTREME ((snd_card_type_t) SNDRV_CARD_TYPE_GUS_EXTREME)
-#define SND_CARD_TYPE_GUS_ACE ((snd_card_type_t) SNDRV_CARD_TYPE_GUS_ACE)
-#define SND_CARD_TYPE_GUS_MAX ((snd_card_type_t) SNDRV_CARD_TYPE_GUS_MAX)
-#define SND_CARD_TYPE_AMD_INTERWAVE ((snd_card_type_t) SNDRV_CARD_TYPE_AMD_INTERWAVE)
-#define SND_CARD_TYPE_SB_10 ((snd_card_type_t) SNDRV_CARD_TYPE_SB_10)
-#define SND_CARD_TYPE_SB_20 ((snd_card_type_t) SNDRV_CARD_TYPE_SB_20)
-#define SND_CARD_TYPE_SB_PRO ((snd_card_type_t) SNDRV_CARD_TYPE_SB_PRO)
-#define SND_CARD_TYPE_SB_16 ((snd_card_type_t) SNDRV_CARD_TYPE_SB_16)
-#define SND_CARD_TYPE_SB_AWE ((snd_card_type_t) SNDRV_CARD_TYPE_SB_AWE)
-#define SND_CARD_TYPE_ESS_ES1688 ((snd_card_type_t) SNDRV_CARD_TYPE_ESS_ES1688)
-#define SND_CARD_TYPE_OPL3_SA2 ((snd_card_type_t) SNDRV_CARD_TYPE_OPL3_SA2)
-#define SND_CARD_TYPE_MOZART ((snd_card_type_t) SNDRV_CARD_TYPE_MOZART)
-#define SND_CARD_TYPE_S3_SONICVIBES ((snd_card_type_t) SNDRV_CARD_TYPE_S3_SONICVIBES)
-#define SND_CARD_TYPE_ENS1370 ((snd_card_type_t) SNDRV_CARD_TYPE_ENS1370)
-#define SND_CARD_TYPE_ENS1371 ((snd_card_type_t) SNDRV_CARD_TYPE_ENS1371)
-#define SND_CARD_TYPE_CS4232 ((snd_card_type_t) SNDRV_CARD_TYPE_CS4232)
-#define SND_CARD_TYPE_CS4236 ((snd_card_type_t) SNDRV_CARD_TYPE_CS4236)
-#define SND_CARD_TYPE_AMD_INTERWAVE_STB ((snd_card_type_t) SNDRV_CARD_TYPE_AMD_INTERWAVE_STB)
-#define SND_CARD_TYPE_ESS_ES1938 ((snd_card_type_t) SNDRV_CARD_TYPE_ESS_ES1938)
-#define SND_CARD_TYPE_ESS_ES18XX ((snd_card_type_t) SNDRV_CARD_TYPE_ESS_ES18XX)
-#define SND_CARD_TYPE_CS4231 ((snd_card_type_t) SNDRV_CARD_TYPE_CS4231)
-#define SND_CARD_TYPE_OPTI92X ((snd_card_type_t) SNDRV_CARD_TYPE_OPTI92X)
-#define SND_CARD_TYPE_SERIAL ((snd_card_type_t) SNDRV_CARD_TYPE_SERIAL)
-#define SND_CARD_TYPE_AD1848 ((snd_card_type_t) SNDRV_CARD_TYPE_AD1848)
-#define SND_CARD_TYPE_TRID4DWAVEDX ((snd_card_type_t) SNDRV_CARD_TYPE_TRID4DWAVEDX)
-#define SND_CARD_TYPE_TRID4DWAVENX ((snd_card_type_t) SNDRV_CARD_TYPE_TRID4DWAVENX)
-#define SND_CARD_TYPE_SGALAXY ((snd_card_type_t) SNDRV_CARD_TYPE_SGALAXY)
-#define SND_CARD_TYPE_CS46XX ((snd_card_type_t) SNDRV_CARD_TYPE_CS46XX)
-#define SND_CARD_TYPE_WAVEFRONT ((snd_card_type_t) SNDRV_CARD_TYPE_WAVEFRONT)
-#define SND_CARD_TYPE_TROPEZ ((snd_card_type_t) SNDRV_CARD_TYPE_TROPEZ)
-#define SND_CARD_TYPE_TROPEZPLUS ((snd_card_type_t) SNDRV_CARD_TYPE_TROPEZPLUS)
-#define SND_CARD_TYPE_MAUI ((snd_card_type_t) SNDRV_CARD_TYPE_MAUI)
-#define SND_CARD_TYPE_CMI8330 ((snd_card_type_t) SNDRV_CARD_TYPE_CMI8330)
-#define SND_CARD_TYPE_DUMMY ((snd_card_type_t) SNDRV_CARD_TYPE_DUMMY)
-#define SND_CARD_TYPE_ALS100 ((snd_card_type_t) SNDRV_CARD_TYPE_ALS100)
-#define SND_CARD_TYPE_SHARE ((snd_card_type_t) SNDRV_CARD_TYPE_SHARE)
-#define SND_CARD_TYPE_SI_7018 ((snd_card_type_t) SNDRV_CARD_TYPE_SI_7018)
-#define SND_CARD_TYPE_OPTI93X ((snd_card_type_t) SNDRV_CARD_TYPE_OPTI93X)
-#define SND_CARD_TYPE_MTPAV ((snd_card_type_t) SNDRV_CARD_TYPE_MTPAV)
-#define SND_CARD_TYPE_VIRMIDI ((snd_card_type_t) SNDRV_CARD_TYPE_VIRMIDI)
-#define SND_CARD_TYPE_EMU10K1 ((snd_card_type_t) SNDRV_CARD_TYPE_EMU10K1)
-#define SND_CARD_TYPE_HAMMERFALL ((snd_card_type_t) SNDRV_CARD_TYPE_HAMMERFALL)
-#define SND_CARD_TYPE_HAMMERFALL_LIGHT ((snd_card_type_t) SNDRV_CARD_TYPE_HAMMERFALL_LIGHT)
-#define SND_CARD_TYPE_ICE1712 ((snd_card_type_t) SNDRV_CARD_TYPE_ICE1712)
-#define SND_CARD_TYPE_CMI8338 ((snd_card_type_t) SNDRV_CARD_TYPE_CMI8338)
-#define SND_CARD_TYPE_CMI8738 ((snd_card_type_t) SNDRV_CARD_TYPE_CMI8738)
-#define SND_CARD_TYPE_AD1816A ((snd_card_type_t) SNDRV_CARD_TYPE_AD1816A)
-#define SND_CARD_TYPE_INTEL8X0 ((snd_card_type_t) SNDRV_CARD_TYPE_INTEL8X0)
-#define SND_CARD_TYPE_ESS_ESOLDM1 ((snd_card_type_t) SNDRV_CARD_TYPE_ESS_ESOLDM1)
-#define SND_CARD_TYPE_ESS_ES1968 ((snd_card_type_t) SNDRV_CARD_TYPE_ESS_ES1968)
-#define SND_CARD_TYPE_ESS_ES1978 ((snd_card_type_t) SNDRV_CARD_TYPE_ESS_ES1978)
-#define SND_CARD_TYPE_DIGI96 ((snd_card_type_t) SNDRV_CARD_TYPE_DIGI96)
-#define SND_CARD_TYPE_VIA82C686A ((snd_card_type_t) SNDRV_CARD_TYPE_VIA82C686A)
-#define SND_CARD_TYPE_FM801 ((snd_card_type_t) SNDRV_CARD_TYPE_FM801)
-#define SND_CARD_TYPE_AZT2320 ((snd_card_type_t) SNDRV_CARD_TYPE_AZT2320)
-#define SND_CARD_TYPE_PRODIF_PLUS ((snd_card_type_t) SNDRV_CARD_TYPE_PRODIF_PLUS)
-#define SND_CARD_TYPE_YMFPCI ((snd_card_type_t) SNDRV_CARD_TYPE_YMFPCI)
-#define SND_CARD_TYPE_CS4281 ((snd_card_type_t) SNDRV_CARD_TYPE_CS4281)
-#define SND_CARD_TYPE_MPU401_UART ((snd_card_type_t) SNDRV_CARD_TYPE_MPU401_UART)
-#define SND_CARD_TYPE_ALS4000 ((snd_card_type_t) SNDRV_CARD_TYPE_ALS4000)
-#define SND_CARD_TYPE_ALLEGRO_1 ((snd_card_type_t) SNDRV_CARD_TYPE_ALLEGRO_1)
-#define SND_CARD_TYPE_ALLEGRO ((snd_card_type_t) SNDRV_CARD_TYPE_ALLEGRO)
-#define SND_CARD_TYPE_MAESTRO3 ((snd_card_type_t) SNDRV_CARD_TYPE_MAESTRO3)
-#define SND_CARD_TYPE_AWACS ((snd_card_type_t) SNDRV_CARD_TYPE_AWACS)
-#define SND_CARD_TYPE_NM256AV ((snd_card_type_t) SNDRV_CARD_TYPE_NM256AV)
-#define SND_CARD_TYPE_NM256ZX ((snd_card_type_t) SNDRV_CARD_TYPE_NM256ZX)
-#define SND_CARD_TYPE_VIA8233 ((snd_card_type_t) SNDRV_CARD_TYPE_VIA8233)
-#define SND_CARD_TYPE_LAST ((snd_card_type_t) SNDRV_CARD_TYPE_LAST)
-
-#define SND_CTL_ELEM_TYPE_NONE ((snd_ctl_elem_type_t) SNDRV_CTL_ELEM_TYPE_NONE)
-#define SND_CTL_ELEM_TYPE_BOOLEAN ((snd_ctl_elem_type_t) SNDRV_CTL_ELEM_TYPE_BOOLEAN)
-#define SND_CTL_ELEM_TYPE_INTEGER ((snd_ctl_elem_type_t) SNDRV_CTL_ELEM_TYPE_INTEGER)
-#define SND_CTL_ELEM_TYPE_ENUMERATED ((snd_ctl_elem_type_t) SNDRV_CTL_ELEM_TYPE_ENUMERATED)
-#define SND_CTL_ELEM_TYPE_BYTES ((snd_ctl_elem_type_t) SNDRV_CTL_ELEM_TYPE_BYTES)
-#define SND_CTL_ELEM_TYPE_IEC958 ((snd_ctl_elem_type_t) SNDRV_CTL_ELEM_TYPE_IEC958)
-#define SND_CTL_ELEM_TYPE_LAST ((snd_ctl_elem_type_t) SNDRV_CTL_ELEM_TYPE_LAST)
-
-#define SND_CTL_ELEM_IFACE_CARD ((snd_ctl_elem_iface_t) SNDRV_CTL_ELEM_IFACE_CARD)
-#define SND_CTL_ELEM_IFACE_HWDEP ((snd_ctl_elem_iface_t) SNDRV_CTL_ELEM_IFACE_HWDEP)
-#define SND_CTL_ELEM_IFACE_MIXER ((snd_ctl_elem_iface_t) SNDRV_CTL_ELEM_IFACE_MIXER)
-#define SND_CTL_ELEM_IFACE_PCM ((snd_ctl_elem_iface_t) SNDRV_CTL_ELEM_IFACE_PCM)
-#define SND_CTL_ELEM_IFACE_RAWMIDI ((snd_ctl_elem_iface_t) SNDRV_CTL_ELEM_IFACE_RAWMIDI)
-#define SND_CTL_ELEM_IFACE_TIMER ((snd_ctl_elem_iface_t) SNDRV_CTL_ELEM_IFACE_TIMER)
-#define SND_CTL_ELEM_IFACE_SEQUENCER ((snd_ctl_elem_iface_t) SNDRV_CTL_ELEM_IFACE_SEQUENCER)
-#define SND_CTL_ELEM_IFACE_LAST ((snd_ctl_elem_iface_t) SNDRV_CTL_ELEM_IFACE_LAST)
-
-#define SND_CTL_EVENT_ELEM ((snd_ctl_event_type_t) SNDRV_CTL_EVENT_ELEM)
-#define SND_CTL_EVENT_LAST ((snd_ctl_event_type_t) SNDRV_CTL_EVENT_LAST)
-
-#define SND_CTL_EVENT_MASK_ADD SNDRV_CTL_EVENT_MASK_ADD
-#define SND_CTL_EVENT_MASK_INFO SNDRV_CTL_EVENT_MASK_INFO
-#define SND_CTL_EVENT_MASK_VALUE SNDRV_CTL_EVENT_MASK_VALUE
-#define SND_CTL_EVENT_MASK_REMOVE SNDRV_CTL_EVENT_MASK_REMOVE
-
-enum _snd_ctl_type {
+/** TLV type - fixed channel map positions */
+#define SND_CTL_TLVT_CHMAP_FIXED 0x00101
+/** TLV type - freely swappable channel map positions */
+#define SND_CTL_TLVT_CHMAP_VAR 0x00102
+/** TLV type - pair-wise swappable channel map positions */
+#define SND_CTL_TLVT_CHMAP_PAIRED 0x00103
+
+/** CTL type */
+typedef enum _snd_ctl_type {
+ /** Kernel level CTL */
SND_CTL_TYPE_HW,
+ /** Shared memory client CTL */
SND_CTL_TYPE_SHM,
- SND_CTL_TYPE_INET
-};
+ /** INET client CTL (not yet implemented) */
+ SND_CTL_TYPE_INET,
+ /** External control plugin */
+ SND_CTL_TYPE_EXT
+} snd_ctl_type_t;
-#ifdef SND_ENUM_TYPECHECK
-typedef struct __snd_ctl_type *snd_ctl_type_t;
-#else
-typedef enum _snd_ctl_type snd_ctl_type_t;
-#endif
+/** Non blocking mode (flag for open mode) \hideinitializer */
+#define SND_CTL_NONBLOCK 0x0001
+
+/** Async notification (flag for open mode) \hideinitializer */
+#define SND_CTL_ASYNC 0x0002
-#define SND_CTL_TYPE_HW ((snd_ctl_type_t) SND_CTL_TYPE_HW)
-#define SND_CTL_TYPE_SHM ((snd_ctl_type_t) SND_CTL_TYPE_SHM)
-#define SND_CTL_TYPE_INET ((snd_ctl_type_t) SND_CTL_TYPE_INET)
+/** Read only (flag for open mode) \hideinitializer */
+#define SND_CTL_READONLY 0x0004
+/** CTL handle */
typedef struct _snd_ctl snd_ctl_t;
-#ifdef __cplusplus
-extern "C" {
-#endif
+/** Don't destroy the ctl handle when close */
+#define SND_SCTL_NOFREE 0x0001
+
+/** SCTL type */
+typedef struct _snd_sctl snd_sctl_t;
int snd_card_load(int card);
int snd_card_next(int *card);
int snd_card_get_name(int card, char **name);
int snd_card_get_longname(int card, char **name);
-int snd_defaults_card(void);
-int snd_defaults_mixer_card(void);
-int snd_defaults_pcm_card(void);
-int snd_defaults_pcm_device(void);
-int snd_defaults_rawmidi_card(void);
-int snd_defaults_rawmidi_device(void);
+int snd_device_name_hint(int card, const char *iface, void ***hints);
+int snd_device_name_free_hint(void **hints);
+char *snd_device_name_get_hint(const void *hint, const char *id);
-snd_ctl_type_t snd_ctl_type(snd_ctl_t *ctl);
-int snd_ctl_open(snd_ctl_t **ctl, const char *name);
+int snd_ctl_open(snd_ctl_t **ctl, const char *name, int mode);
+int snd_ctl_open_lconf(snd_ctl_t **ctl, const char *name, int mode, snd_config_t *lconf);
+int snd_ctl_open_fallback(snd_ctl_t **ctl, snd_config_t *root, const char *name, const char *orig_name, int mode);
int snd_ctl_close(snd_ctl_t *ctl);
int snd_ctl_nonblock(snd_ctl_t *ctl, int nonblock);
-int snd_ctl_async(snd_ctl_t *ctl, int sig, pid_t pid);
-int snd_ctl_poll_descriptors_count(snd_ctl_t *ctl, unsigned int *count);
+static __inline__ int snd_ctl_abort(snd_ctl_t *ctl) { return snd_ctl_nonblock(ctl, 2); }
+int snd_async_add_ctl_handler(snd_async_handler_t **handler, snd_ctl_t *ctl,
+ snd_async_callback_t callback, void *private_data);
+snd_ctl_t *snd_async_handler_get_ctl(snd_async_handler_t *handler);
+int snd_ctl_poll_descriptors_count(snd_ctl_t *ctl);
int snd_ctl_poll_descriptors(snd_ctl_t *ctl, struct pollfd *pfds, unsigned int space);
+int snd_ctl_poll_descriptors_revents(snd_ctl_t *ctl, struct pollfd *pfds, unsigned int nfds, unsigned short *revents);
int snd_ctl_subscribe_events(snd_ctl_t *ctl, int subscribe);
int snd_ctl_card_info(snd_ctl_t *ctl, snd_ctl_card_info_t *info);
-int snd_ctl_elem_list(snd_ctl_t *ctl, snd_ctl_elem_list_t * list);
+int snd_ctl_elem_list(snd_ctl_t *ctl, snd_ctl_elem_list_t *list);
int snd_ctl_elem_info(snd_ctl_t *ctl, snd_ctl_elem_info_t *info);
int snd_ctl_elem_read(snd_ctl_t *ctl, snd_ctl_elem_value_t *value);
int snd_ctl_elem_write(snd_ctl_t *ctl, snd_ctl_elem_value_t *value);
+int snd_ctl_elem_lock(snd_ctl_t *ctl, snd_ctl_elem_id_t *id);
+int snd_ctl_elem_unlock(snd_ctl_t *ctl, snd_ctl_elem_id_t *id);
+int snd_ctl_elem_tlv_read(snd_ctl_t *ctl, const snd_ctl_elem_id_t *id,
+ unsigned int *tlv, unsigned int tlv_size);
+int snd_ctl_elem_tlv_write(snd_ctl_t *ctl, const snd_ctl_elem_id_t *id,
+ const unsigned int *tlv);
+int snd_ctl_elem_tlv_command(snd_ctl_t *ctl, const snd_ctl_elem_id_t *id,
+ const unsigned int *tlv);
+#ifdef __ALSA_HWDEP_H
int snd_ctl_hwdep_next_device(snd_ctl_t *ctl, int * device);
int snd_ctl_hwdep_info(snd_ctl_t *ctl, snd_hwdep_info_t * info);
+#endif
+#ifdef __ALSA_PCM_H
int snd_ctl_pcm_next_device(snd_ctl_t *ctl, int *device);
int snd_ctl_pcm_info(snd_ctl_t *ctl, snd_pcm_info_t * info);
int snd_ctl_pcm_prefer_subdevice(snd_ctl_t *ctl, int subdev);
+#endif
+#ifdef __ALSA_RAWMIDI_H
int snd_ctl_rawmidi_next_device(snd_ctl_t *ctl, int * device);
int snd_ctl_rawmidi_info(snd_ctl_t *ctl, snd_rawmidi_info_t * info);
int snd_ctl_rawmidi_prefer_subdevice(snd_ctl_t *ctl, int subdev);
+#endif
+int snd_ctl_set_power_state(snd_ctl_t *ctl, unsigned int state);
+int snd_ctl_get_power_state(snd_ctl_t *ctl, unsigned int *state);
int snd_ctl_read(snd_ctl_t *ctl, snd_ctl_event_t *event);
int snd_ctl_wait(snd_ctl_t *ctl, int timeout);
const char *snd_ctl_name(snd_ctl_t *ctl);
snd_ctl_type_t snd_ctl_type(snd_ctl_t *ctl);
-void snd_ctl_elem_set_bytes(snd_ctl_elem_value_t *obj, void *data, size_t size);
const char *snd_ctl_elem_type_name(snd_ctl_elem_type_t type);
const char *snd_ctl_elem_iface_name(snd_ctl_elem_iface_t iface);
const char *snd_ctl_event_type_name(snd_ctl_event_type_t type);
int snd_ctl_elem_list_alloc_space(snd_ctl_elem_list_t *obj, unsigned int entries);
void snd_ctl_elem_list_free_space(snd_ctl_elem_list_t *obj);
-#ifdef __cplusplus
-}
-#endif
+char *snd_ctl_ascii_elem_id_get(snd_ctl_elem_id_t *id);
+int snd_ctl_ascii_elem_id_parse(snd_ctl_elem_id_t *dst, const char *str);
+int snd_ctl_ascii_value_parse(snd_ctl_t *handle,
+ snd_ctl_elem_value_t *dst,
+ snd_ctl_elem_info_t *info,
+ const char *value);
-/*
- * Highlevel API for controls
+size_t snd_ctl_elem_id_sizeof(void);
+/** \hideinitializer
+ * \brief allocate an invalid #snd_ctl_elem_id_t using standard alloca
+ * \param ptr returned pointer
+ */
+#define snd_ctl_elem_id_alloca(ptr) __snd_alloca(ptr, snd_ctl_elem_id)
+int snd_ctl_elem_id_malloc(snd_ctl_elem_id_t **ptr);
+void snd_ctl_elem_id_free(snd_ctl_elem_id_t *obj);
+void snd_ctl_elem_id_clear(snd_ctl_elem_id_t *obj);
+void snd_ctl_elem_id_copy(snd_ctl_elem_id_t *dst, const snd_ctl_elem_id_t *src);
+unsigned int snd_ctl_elem_id_get_numid(const snd_ctl_elem_id_t *obj);
+snd_ctl_elem_iface_t snd_ctl_elem_id_get_interface(const snd_ctl_elem_id_t *obj);
+unsigned int snd_ctl_elem_id_get_device(const snd_ctl_elem_id_t *obj);
+unsigned int snd_ctl_elem_id_get_subdevice(const snd_ctl_elem_id_t *obj);
+const char *snd_ctl_elem_id_get_name(const snd_ctl_elem_id_t *obj);
+unsigned int snd_ctl_elem_id_get_index(const snd_ctl_elem_id_t *obj);
+void snd_ctl_elem_id_set_numid(snd_ctl_elem_id_t *obj, unsigned int val);
+void snd_ctl_elem_id_set_interface(snd_ctl_elem_id_t *obj, snd_ctl_elem_iface_t val);
+void snd_ctl_elem_id_set_device(snd_ctl_elem_id_t *obj, unsigned int val);
+void snd_ctl_elem_id_set_subdevice(snd_ctl_elem_id_t *obj, unsigned int val);
+void snd_ctl_elem_id_set_name(snd_ctl_elem_id_t *obj, const char *val);
+void snd_ctl_elem_id_set_index(snd_ctl_elem_id_t *obj, unsigned int val);
+
+size_t snd_ctl_card_info_sizeof(void);
+/** \hideinitializer
+ * \brief allocate an invalid #snd_ctl_card_info_t using standard alloca
+ * \param ptr returned pointer
+ */
+#define snd_ctl_card_info_alloca(ptr) __snd_alloca(ptr, snd_ctl_card_info)
+int snd_ctl_card_info_malloc(snd_ctl_card_info_t **ptr);
+void snd_ctl_card_info_free(snd_ctl_card_info_t *obj);
+void snd_ctl_card_info_clear(snd_ctl_card_info_t *obj);
+void snd_ctl_card_info_copy(snd_ctl_card_info_t *dst, const snd_ctl_card_info_t *src);
+int snd_ctl_card_info_get_card(const snd_ctl_card_info_t *obj);
+const char *snd_ctl_card_info_get_id(const snd_ctl_card_info_t *obj);
+const char *snd_ctl_card_info_get_driver(const snd_ctl_card_info_t *obj);
+const char *snd_ctl_card_info_get_name(const snd_ctl_card_info_t *obj);
+const char *snd_ctl_card_info_get_longname(const snd_ctl_card_info_t *obj);
+const char *snd_ctl_card_info_get_mixername(const snd_ctl_card_info_t *obj);
+const char *snd_ctl_card_info_get_components(const snd_ctl_card_info_t *obj);
+
+size_t snd_ctl_event_sizeof(void);
+/** \hideinitializer
+ * \brief allocate an invalid #snd_ctl_event_t using standard alloca
+ * \param ptr returned pointer
+ */
+#define snd_ctl_event_alloca(ptr) __snd_alloca(ptr, snd_ctl_event)
+int snd_ctl_event_malloc(snd_ctl_event_t **ptr);
+void snd_ctl_event_free(snd_ctl_event_t *obj);
+void snd_ctl_event_clear(snd_ctl_event_t *obj);
+void snd_ctl_event_copy(snd_ctl_event_t *dst, const snd_ctl_event_t *src);
+snd_ctl_event_type_t snd_ctl_event_get_type(const snd_ctl_event_t *obj);
+
+size_t snd_ctl_elem_list_sizeof(void);
+/** \hideinitializer
+ * \brief allocate an invalid #snd_ctl_elem_list_t using standard alloca
+ * \param ptr returned pointer
+ */
+#define snd_ctl_elem_list_alloca(ptr) __snd_alloca(ptr, snd_ctl_elem_list)
+int snd_ctl_elem_list_malloc(snd_ctl_elem_list_t **ptr);
+void snd_ctl_elem_list_free(snd_ctl_elem_list_t *obj);
+void snd_ctl_elem_list_clear(snd_ctl_elem_list_t *obj);
+void snd_ctl_elem_list_copy(snd_ctl_elem_list_t *dst, const snd_ctl_elem_list_t *src);
+void snd_ctl_elem_list_set_offset(snd_ctl_elem_list_t *obj, unsigned int val);
+unsigned int snd_ctl_elem_list_get_used(const snd_ctl_elem_list_t *obj);
+unsigned int snd_ctl_elem_list_get_count(const snd_ctl_elem_list_t *obj);
+void snd_ctl_elem_list_get_id(const snd_ctl_elem_list_t *obj, unsigned int idx, snd_ctl_elem_id_t *ptr);
+unsigned int snd_ctl_elem_list_get_numid(const snd_ctl_elem_list_t *obj, unsigned int idx);
+snd_ctl_elem_iface_t snd_ctl_elem_list_get_interface(const snd_ctl_elem_list_t *obj, unsigned int idx);
+unsigned int snd_ctl_elem_list_get_device(const snd_ctl_elem_list_t *obj, unsigned int idx);
+unsigned int snd_ctl_elem_list_get_subdevice(const snd_ctl_elem_list_t *obj, unsigned int idx);
+const char *snd_ctl_elem_list_get_name(const snd_ctl_elem_list_t *obj, unsigned int idx);
+unsigned int snd_ctl_elem_list_get_index(const snd_ctl_elem_list_t *obj, unsigned int idx);
+
+size_t snd_ctl_elem_info_sizeof(void);
+/** \hideinitializer
+ * \brief allocate an invalid #snd_ctl_elem_info_t using standard alloca
+ * \param ptr returned pointer
+ */
+#define snd_ctl_elem_info_alloca(ptr) __snd_alloca(ptr, snd_ctl_elem_info)
+int snd_ctl_elem_info_malloc(snd_ctl_elem_info_t **ptr);
+void snd_ctl_elem_info_free(snd_ctl_elem_info_t *obj);
+void snd_ctl_elem_info_clear(snd_ctl_elem_info_t *obj);
+void snd_ctl_elem_info_copy(snd_ctl_elem_info_t *dst, const snd_ctl_elem_info_t *src);
+snd_ctl_elem_type_t snd_ctl_elem_info_get_type(const snd_ctl_elem_info_t *obj);
+int snd_ctl_elem_info_is_readable(const snd_ctl_elem_info_t *obj);
+int snd_ctl_elem_info_is_writable(const snd_ctl_elem_info_t *obj);
+int snd_ctl_elem_info_is_volatile(const snd_ctl_elem_info_t *obj);
+int snd_ctl_elem_info_is_inactive(const snd_ctl_elem_info_t *obj);
+int snd_ctl_elem_info_is_locked(const snd_ctl_elem_info_t *obj);
+int snd_ctl_elem_info_is_tlv_readable(const snd_ctl_elem_info_t *obj);
+int snd_ctl_elem_info_is_tlv_writable(const snd_ctl_elem_info_t *obj);
+int snd_ctl_elem_info_is_tlv_commandable(const snd_ctl_elem_info_t *obj);
+int snd_ctl_elem_info_is_owner(const snd_ctl_elem_info_t *obj);
+int snd_ctl_elem_info_is_user(const snd_ctl_elem_info_t *obj);
+pid_t snd_ctl_elem_info_get_owner(const snd_ctl_elem_info_t *obj);
+unsigned int snd_ctl_elem_info_get_count(const snd_ctl_elem_info_t *obj);
+long snd_ctl_elem_info_get_min(const snd_ctl_elem_info_t *obj);
+long snd_ctl_elem_info_get_max(const snd_ctl_elem_info_t *obj);
+long snd_ctl_elem_info_get_step(const snd_ctl_elem_info_t *obj);
+long long snd_ctl_elem_info_get_min64(const snd_ctl_elem_info_t *obj);
+long long snd_ctl_elem_info_get_max64(const snd_ctl_elem_info_t *obj);
+long long snd_ctl_elem_info_get_step64(const snd_ctl_elem_info_t *obj);
+unsigned int snd_ctl_elem_info_get_items(const snd_ctl_elem_info_t *obj);
+void snd_ctl_elem_info_set_item(snd_ctl_elem_info_t *obj, unsigned int val);
+const char *snd_ctl_elem_info_get_item_name(const snd_ctl_elem_info_t *obj);
+int snd_ctl_elem_info_get_dimensions(const snd_ctl_elem_info_t *obj);
+int snd_ctl_elem_info_get_dimension(const snd_ctl_elem_info_t *obj, unsigned int idx);
+void snd_ctl_elem_info_get_id(const snd_ctl_elem_info_t *obj, snd_ctl_elem_id_t *ptr);
+unsigned int snd_ctl_elem_info_get_numid(const snd_ctl_elem_info_t *obj);
+snd_ctl_elem_iface_t snd_ctl_elem_info_get_interface(const snd_ctl_elem_info_t *obj);
+unsigned int snd_ctl_elem_info_get_device(const snd_ctl_elem_info_t *obj);
+unsigned int snd_ctl_elem_info_get_subdevice(const snd_ctl_elem_info_t *obj);
+const char *snd_ctl_elem_info_get_name(const snd_ctl_elem_info_t *obj);
+unsigned int snd_ctl_elem_info_get_index(const snd_ctl_elem_info_t *obj);
+void snd_ctl_elem_info_set_id(snd_ctl_elem_info_t *obj, const snd_ctl_elem_id_t *ptr);
+void snd_ctl_elem_info_set_numid(snd_ctl_elem_info_t *obj, unsigned int val);
+void snd_ctl_elem_info_set_interface(snd_ctl_elem_info_t *obj, snd_ctl_elem_iface_t val);
+void snd_ctl_elem_info_set_device(snd_ctl_elem_info_t *obj, unsigned int val);
+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(snd_ctl_t *ctl, const snd_ctl_elem_id_t *id, unsigned int count, long imin, long imax, long istep);
+int snd_ctl_elem_add_integer64(snd_ctl_t *ctl, const snd_ctl_elem_id_t *id, unsigned int count, long long imin, long long imax, long long istep);
+int snd_ctl_elem_add_boolean(snd_ctl_t *ctl, const snd_ctl_elem_id_t *id, unsigned int count);
+int snd_ctl_elem_add_enumerated(snd_ctl_t *ctl, const snd_ctl_elem_id_t *id, unsigned int count, unsigned int items, const char *const names[]);
+int snd_ctl_elem_add_iec958(snd_ctl_t *ctl, const snd_ctl_elem_id_t *id);
+int snd_ctl_elem_remove(snd_ctl_t *ctl, snd_ctl_elem_id_t *id);
+
+size_t snd_ctl_elem_value_sizeof(void);
+/** \hideinitializer
+ * \brief allocate an invalid #snd_ctl_elem_value_t using standard alloca
+ * \param ptr returned pointer
*/
+#define snd_ctl_elem_value_alloca(ptr) __snd_alloca(ptr, snd_ctl_elem_value)
+int snd_ctl_elem_value_malloc(snd_ctl_elem_value_t **ptr);
+void snd_ctl_elem_value_free(snd_ctl_elem_value_t *obj);
+void snd_ctl_elem_value_clear(snd_ctl_elem_value_t *obj);
+void snd_ctl_elem_value_copy(snd_ctl_elem_value_t *dst, const snd_ctl_elem_value_t *src);
+int snd_ctl_elem_value_compare(snd_ctl_elem_value_t *left, const snd_ctl_elem_value_t *right);
+void snd_ctl_elem_value_get_id(const snd_ctl_elem_value_t *obj, snd_ctl_elem_id_t *ptr);
+unsigned int snd_ctl_elem_value_get_numid(const snd_ctl_elem_value_t *obj);
+snd_ctl_elem_iface_t snd_ctl_elem_value_get_interface(const snd_ctl_elem_value_t *obj);
+unsigned int snd_ctl_elem_value_get_device(const snd_ctl_elem_value_t *obj);
+unsigned int snd_ctl_elem_value_get_subdevice(const snd_ctl_elem_value_t *obj);
+const char *snd_ctl_elem_value_get_name(const snd_ctl_elem_value_t *obj);
+unsigned int snd_ctl_elem_value_get_index(const snd_ctl_elem_value_t *obj);
+void snd_ctl_elem_value_set_id(snd_ctl_elem_value_t *obj, const snd_ctl_elem_id_t *ptr);
+void snd_ctl_elem_value_set_numid(snd_ctl_elem_value_t *obj, unsigned int val);
+void snd_ctl_elem_value_set_interface(snd_ctl_elem_value_t *obj, snd_ctl_elem_iface_t val);
+void snd_ctl_elem_value_set_device(snd_ctl_elem_value_t *obj, unsigned int val);
+void snd_ctl_elem_value_set_subdevice(snd_ctl_elem_value_t *obj, unsigned int val);
+void snd_ctl_elem_value_set_name(snd_ctl_elem_value_t *obj, const char *val);
+void snd_ctl_elem_value_set_index(snd_ctl_elem_value_t *obj, unsigned int val);
+int snd_ctl_elem_value_get_boolean(const snd_ctl_elem_value_t *obj, unsigned int idx);
+long snd_ctl_elem_value_get_integer(const snd_ctl_elem_value_t *obj, unsigned int idx);
+long long snd_ctl_elem_value_get_integer64(const snd_ctl_elem_value_t *obj, unsigned int idx);
+unsigned int snd_ctl_elem_value_get_enumerated(const snd_ctl_elem_value_t *obj, unsigned int idx);
+unsigned char snd_ctl_elem_value_get_byte(const snd_ctl_elem_value_t *obj, unsigned int idx);
+void snd_ctl_elem_value_set_boolean(snd_ctl_elem_value_t *obj, unsigned int idx, long val);
+void snd_ctl_elem_value_set_integer(snd_ctl_elem_value_t *obj, unsigned int idx, long val);
+void snd_ctl_elem_value_set_integer64(snd_ctl_elem_value_t *obj, unsigned int idx, long long val);
+void snd_ctl_elem_value_set_enumerated(snd_ctl_elem_value_t *obj, unsigned int idx, unsigned int val);
+void snd_ctl_elem_value_set_byte(snd_ctl_elem_value_t *obj, unsigned int idx, unsigned char val);
+void snd_ctl_elem_set_bytes(snd_ctl_elem_value_t *obj, void *data, size_t size);
+const void * snd_ctl_elem_value_get_bytes(const snd_ctl_elem_value_t *obj);
+void snd_ctl_elem_value_get_iec958(const snd_ctl_elem_value_t *obj, snd_aes_iec958_t *ptr);
+void snd_ctl_elem_value_set_iec958(snd_ctl_elem_value_t *obj, const snd_aes_iec958_t *ptr);
+
+int snd_tlv_parse_dB_info(unsigned int *tlv, unsigned int tlv_size,
+ unsigned int **db_tlvp);
+int snd_tlv_get_dB_range(unsigned int *tlv, long rangemin, long rangemax,
+ long *min, long *max);
+int snd_tlv_convert_to_dB(unsigned int *tlv, long rangemin, long rangemax,
+ long volume, long *db_gain);
+int snd_tlv_convert_from_dB(unsigned int *tlv, long rangemin, long rangemax,
+ long db_gain, long *value, int xdir);
+int snd_ctl_get_dB_range(snd_ctl_t *ctl, const snd_ctl_elem_id_t *id,
+ long *min, long *max);
+int snd_ctl_convert_to_dB(snd_ctl_t *ctl, const snd_ctl_elem_id_t *id,
+ long volume, long *db_gain);
+int snd_ctl_convert_from_dB(snd_ctl_t *ctl, const snd_ctl_elem_id_t *id,
+ long db_gain, long *value, int xdir);
+/**
+ * \defgroup HControl High level Control Interface
+ * \ingroup Control
+ * The high level control interface.
+ * See \ref hcontrol page for more details.
+ * \{
+ */
+
+/** HCTL element handle */
typedef struct _snd_hctl_elem snd_hctl_elem_t;
+/** HCTL handle */
typedef struct _snd_hctl snd_hctl_t;
-#ifdef __cplusplus
-extern "C" {
-#endif
-
+/**
+ * \brief Compare function for sorting HCTL elements
+ * \param e1 First element
+ * \param e2 Second element
+ * \return -1 if e1 < e2, 0 if e1 == e2, 1 if e1 > e2
+ */
typedef int (*snd_hctl_compare_t)(const snd_hctl_elem_t *e1,
const snd_hctl_elem_t *e2);
+int snd_hctl_compare_fast(const snd_hctl_elem_t *c1,
+ const snd_hctl_elem_t *c2);
+/**
+ * \brief HCTL callback function
+ * \param hctl HCTL handle
+ * \param mask event mask
+ * \param elem related HCTL element (if any)
+ * \return 0 on success otherwise a negative error code
+ */
typedef int (*snd_hctl_callback_t)(snd_hctl_t *hctl,
unsigned int mask,
snd_hctl_elem_t *elem);
+/**
+ * \brief HCTL element callback function
+ * \param elem HCTL element
+ * \param mask event mask
+ * \return 0 on success otherwise a negative error code
+ */
typedef int (*snd_hctl_elem_callback_t)(snd_hctl_elem_t *elem,
unsigned int mask);
-int snd_hctl_open(snd_hctl_t **hctl, const char *name);
+int snd_hctl_open(snd_hctl_t **hctl, const char *name, int mode);
+int snd_hctl_open_ctl(snd_hctl_t **hctlp, snd_ctl_t *ctl);
int snd_hctl_close(snd_hctl_t *hctl);
int snd_hctl_nonblock(snd_hctl_t *hctl, int nonblock);
-int snd_hctl_async(snd_hctl_t *hctl, int sig, pid_t pid);
-int snd_hctl_poll_descriptors_count(snd_hctl_t *hctl, unsigned int *count);
+static __inline__ int snd_hctl_abort(snd_hctl_t *hctl) { return snd_hctl_nonblock(hctl, 2); }
+int snd_hctl_poll_descriptors_count(snd_hctl_t *hctl);
int snd_hctl_poll_descriptors(snd_hctl_t *hctl, struct pollfd *pfds, unsigned int space);
+int snd_hctl_poll_descriptors_revents(snd_hctl_t *ctl, struct pollfd *pfds, unsigned int nfds, unsigned short *revents);
unsigned int snd_hctl_get_count(snd_hctl_t *hctl);
int snd_hctl_set_compare(snd_hctl_t *hctl, snd_hctl_compare_t hsort);
snd_hctl_elem_t *snd_hctl_first_elem(snd_hctl_t *hctl);
void *snd_hctl_get_callback_private(snd_hctl_t *hctl);
int snd_hctl_load(snd_hctl_t *hctl);
int snd_hctl_free(snd_hctl_t *hctl);
-int snd_hctl_handle_event(snd_hctl_t *hctl, snd_ctl_event_t *event);
int snd_hctl_handle_events(snd_hctl_t *hctl);
const char *snd_hctl_name(snd_hctl_t *hctl);
-snd_ctl_type_t snd_hctl_type(snd_hctl_t *hctl);
int snd_hctl_wait(snd_hctl_t *hctl, int timeout);
+snd_ctl_t *snd_hctl_ctl(snd_hctl_t *hctl);
snd_hctl_elem_t *snd_hctl_elem_next(snd_hctl_elem_t *elem);
snd_hctl_elem_t *snd_hctl_elem_prev(snd_hctl_elem_t *elem);
int snd_hctl_elem_info(snd_hctl_elem_t *elem, snd_ctl_elem_info_t * info);
int snd_hctl_elem_read(snd_hctl_elem_t *elem, snd_ctl_elem_value_t * value);
int snd_hctl_elem_write(snd_hctl_elem_t *elem, snd_ctl_elem_value_t * value);
+int snd_hctl_elem_tlv_read(snd_hctl_elem_t *elem, unsigned int *tlv, unsigned int tlv_size);
+int snd_hctl_elem_tlv_write(snd_hctl_elem_t *elem, const unsigned int *tlv);
+int snd_hctl_elem_tlv_command(snd_hctl_elem_t *elem, const unsigned int *tlv);
snd_hctl_t *snd_hctl_elem_get_hctl(snd_hctl_elem_t *elem);
+void snd_hctl_elem_get_id(const snd_hctl_elem_t *obj, snd_ctl_elem_id_t *ptr);
+unsigned int snd_hctl_elem_get_numid(const snd_hctl_elem_t *obj);
+snd_ctl_elem_iface_t snd_hctl_elem_get_interface(const snd_hctl_elem_t *obj);
+unsigned int snd_hctl_elem_get_device(const snd_hctl_elem_t *obj);
+unsigned int snd_hctl_elem_get_subdevice(const snd_hctl_elem_t *obj);
+const char *snd_hctl_elem_get_name(const snd_hctl_elem_t *obj);
+unsigned int snd_hctl_elem_get_index(const snd_hctl_elem_t *obj);
+void snd_hctl_elem_set_callback(snd_hctl_elem_t *obj, snd_hctl_elem_callback_t val);
+void * snd_hctl_elem_get_callback_private(const snd_hctl_elem_t *obj);
+void snd_hctl_elem_set_callback_private(snd_hctl_elem_t *obj, void * val);
+
+/** \} */
+
+/** \} */
+
+/**
+ * \defgroup SControl Setup Control Interface
+ * \ingroup Control
+ * The setup control interface - set or modify control elements from a configuration file.
+ * \{
+ */
+
+int snd_sctl_build(snd_sctl_t **ctl, snd_ctl_t *handle, snd_config_t *config,
+ snd_config_t *private_data, int mode);
+int snd_sctl_free(snd_sctl_t *handle);
+int snd_sctl_install(snd_sctl_t *handle);
+int snd_sctl_remove(snd_sctl_t *handle);
+
+/** \} */
+
#ifdef __cplusplus
}
#endif
+#endif /* __ALSA_CONTROL_H */
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