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      1 /****************************************************************************
      2  ****************************************************************************
      3  ***
      4  ***   This header was automatically generated from a Linux kernel header
      5  ***   of the same name, to make information necessary for userspace to
      6  ***   call into the kernel available to libc.  It contains only constants,
      7  ***   structures, and macros generated from the original header, and thus,
      8  ***   contains no copyrightable information.
      9  ***
     10  ***   To edit the content of this header, modify the corresponding
     11  ***   source file (e.g. under external/kernel-headers/original/) then
     12  ***   run bionic/libc/kernel/tools/update_all.py
     13  ***
     14  ***   Any manual change here will be lost the next time this script will
     15  ***   be run. You've been warned!
     16  ***
     17  ****************************************************************************
     18  ****************************************************************************/
     19 #ifndef _UAPI__SOUND_ASOUND_H
     20 #define _UAPI__SOUND_ASOUND_H
     21 #ifdef __linux__
     22 #include <linux/types.h>
     23 #else
     24 #include <sys/ioctl.h>
     25 #endif
     26 #include <stdlib.h>
     27 #define SNDRV_PROTOCOL_VERSION(major,minor,subminor) (((major) << 16) | ((minor) << 8) | (subminor))
     28 #define SNDRV_PROTOCOL_MAJOR(version) (((version) >> 16) & 0xffff)
     29 #define SNDRV_PROTOCOL_MINOR(version) (((version) >> 8) & 0xff)
     30 #define SNDRV_PROTOCOL_MICRO(version) ((version) & 0xff)
     31 #define SNDRV_PROTOCOL_INCOMPATIBLE(kversion,uversion) (SNDRV_PROTOCOL_MAJOR(kversion) != SNDRV_PROTOCOL_MAJOR(uversion) || (SNDRV_PROTOCOL_MAJOR(kversion) == SNDRV_PROTOCOL_MAJOR(uversion) && SNDRV_PROTOCOL_MINOR(kversion) != SNDRV_PROTOCOL_MINOR(uversion)))
     32 struct snd_aes_iec958 {
     33   unsigned char status[24];
     34   unsigned char subcode[147];
     35   unsigned char pad;
     36   unsigned char dig_subframe[4];
     37 };
     38 struct snd_cea_861_aud_if {
     39   unsigned char db1_ct_cc;
     40   unsigned char db2_sf_ss;
     41   unsigned char db3;
     42   unsigned char db4_ca;
     43   unsigned char db5_dminh_lsv;
     44 };
     45 #define SNDRV_HWDEP_VERSION SNDRV_PROTOCOL_VERSION(1, 0, 1)
     46 enum {
     47   SNDRV_HWDEP_IFACE_OPL2 = 0,
     48   SNDRV_HWDEP_IFACE_OPL3,
     49   SNDRV_HWDEP_IFACE_OPL4,
     50   SNDRV_HWDEP_IFACE_SB16CSP,
     51   SNDRV_HWDEP_IFACE_EMU10K1,
     52   SNDRV_HWDEP_IFACE_YSS225,
     53   SNDRV_HWDEP_IFACE_ICS2115,
     54   SNDRV_HWDEP_IFACE_SSCAPE,
     55   SNDRV_HWDEP_IFACE_VX,
     56   SNDRV_HWDEP_IFACE_MIXART,
     57   SNDRV_HWDEP_IFACE_USX2Y,
     58   SNDRV_HWDEP_IFACE_EMUX_WAVETABLE,
     59   SNDRV_HWDEP_IFACE_BLUETOOTH,
     60   SNDRV_HWDEP_IFACE_USX2Y_PCM,
     61   SNDRV_HWDEP_IFACE_PCXHR,
     62   SNDRV_HWDEP_IFACE_SB_RC,
     63   SNDRV_HWDEP_IFACE_HDA,
     64   SNDRV_HWDEP_IFACE_USB_STREAM,
     65   SNDRV_HWDEP_IFACE_FW_DICE,
     66   SNDRV_HWDEP_IFACE_FW_FIREWORKS,
     67   SNDRV_HWDEP_IFACE_FW_BEBOB,
     68   SNDRV_HWDEP_IFACE_FW_OXFW,
     69   SNDRV_HWDEP_IFACE_FW_DIGI00X,
     70   SNDRV_HWDEP_IFACE_FW_TASCAM,
     71   SNDRV_HWDEP_IFACE_LINE6,
     72   SNDRV_HWDEP_IFACE_FW_MOTU,
     73   SNDRV_HWDEP_IFACE_FW_FIREFACE,
     74   SNDRV_HWDEP_IFACE_LAST = SNDRV_HWDEP_IFACE_FW_FIREFACE
     75 };
     76 struct snd_hwdep_info {
     77   unsigned int device;
     78   int card;
     79   unsigned char id[64];
     80   unsigned char name[80];
     81   int iface;
     82   unsigned char reserved[64];
     83 };
     84 struct snd_hwdep_dsp_status {
     85   unsigned int version;
     86   unsigned char id[32];
     87   unsigned int num_dsps;
     88   unsigned int dsp_loaded;
     89   unsigned int chip_ready;
     90   unsigned char reserved[16];
     91 };
     92 struct snd_hwdep_dsp_image {
     93   unsigned int index;
     94   unsigned char name[64];
     95   unsigned char __user * image;
     96   size_t length;
     97   unsigned long driver_data;
     98 };
     99 #define SNDRV_HWDEP_IOCTL_PVERSION _IOR('H', 0x00, int)
    100 #define SNDRV_HWDEP_IOCTL_INFO _IOR('H', 0x01, struct snd_hwdep_info)
    101 #define SNDRV_HWDEP_IOCTL_DSP_STATUS _IOR('H', 0x02, struct snd_hwdep_dsp_status)
    102 #define SNDRV_HWDEP_IOCTL_DSP_LOAD _IOW('H', 0x03, struct snd_hwdep_dsp_image)
    103 #define SNDRV_PCM_VERSION SNDRV_PROTOCOL_VERSION(2, 0, 14)
    104 typedef unsigned long snd_pcm_uframes_t;
    105 typedef signed long snd_pcm_sframes_t;
    106 enum {
    107   SNDRV_PCM_CLASS_GENERIC = 0,
    108   SNDRV_PCM_CLASS_MULTI,
    109   SNDRV_PCM_CLASS_MODEM,
    110   SNDRV_PCM_CLASS_DIGITIZER,
    111   SNDRV_PCM_CLASS_LAST = SNDRV_PCM_CLASS_DIGITIZER,
    112 };
    113 enum {
    114   SNDRV_PCM_SUBCLASS_GENERIC_MIX = 0,
    115   SNDRV_PCM_SUBCLASS_MULTI_MIX,
    116   SNDRV_PCM_SUBCLASS_LAST = SNDRV_PCM_SUBCLASS_MULTI_MIX,
    117 };
    118 enum {
    119   SNDRV_PCM_STREAM_PLAYBACK = 0,
    120   SNDRV_PCM_STREAM_CAPTURE,
    121   SNDRV_PCM_STREAM_LAST = SNDRV_PCM_STREAM_CAPTURE,
    122 };
    123 typedef int __bitwise snd_pcm_access_t;
    124 #define SNDRV_PCM_ACCESS_MMAP_INTERLEAVED ((__force snd_pcm_access_t) 0)
    125 #define SNDRV_PCM_ACCESS_MMAP_NONINTERLEAVED ((__force snd_pcm_access_t) 1)
    126 #define SNDRV_PCM_ACCESS_MMAP_COMPLEX ((__force snd_pcm_access_t) 2)
    127 #define SNDRV_PCM_ACCESS_RW_INTERLEAVED ((__force snd_pcm_access_t) 3)
    128 #define SNDRV_PCM_ACCESS_RW_NONINTERLEAVED ((__force snd_pcm_access_t) 4)
    129 #define SNDRV_PCM_ACCESS_LAST SNDRV_PCM_ACCESS_RW_NONINTERLEAVED
    130 typedef int __bitwise snd_pcm_format_t;
    131 #define SNDRV_PCM_FORMAT_S8 ((__force snd_pcm_format_t) 0)
    132 #define SNDRV_PCM_FORMAT_U8 ((__force snd_pcm_format_t) 1)
    133 #define SNDRV_PCM_FORMAT_S16_LE ((__force snd_pcm_format_t) 2)
    134 #define SNDRV_PCM_FORMAT_S16_BE ((__force snd_pcm_format_t) 3)
    135 #define SNDRV_PCM_FORMAT_U16_LE ((__force snd_pcm_format_t) 4)
    136 #define SNDRV_PCM_FORMAT_U16_BE ((__force snd_pcm_format_t) 5)
    137 #define SNDRV_PCM_FORMAT_S24_LE ((__force snd_pcm_format_t) 6)
    138 #define SNDRV_PCM_FORMAT_S24_BE ((__force snd_pcm_format_t) 7)
    139 #define SNDRV_PCM_FORMAT_U24_LE ((__force snd_pcm_format_t) 8)
    140 #define SNDRV_PCM_FORMAT_U24_BE ((__force snd_pcm_format_t) 9)
    141 #define SNDRV_PCM_FORMAT_S32_LE ((__force snd_pcm_format_t) 10)
    142 #define SNDRV_PCM_FORMAT_S32_BE ((__force snd_pcm_format_t) 11)
    143 #define SNDRV_PCM_FORMAT_U32_LE ((__force snd_pcm_format_t) 12)
    144 #define SNDRV_PCM_FORMAT_U32_BE ((__force snd_pcm_format_t) 13)
    145 #define SNDRV_PCM_FORMAT_FLOAT_LE ((__force snd_pcm_format_t) 14)
    146 #define SNDRV_PCM_FORMAT_FLOAT_BE ((__force snd_pcm_format_t) 15)
    147 #define SNDRV_PCM_FORMAT_FLOAT64_LE ((__force snd_pcm_format_t) 16)
    148 #define SNDRV_PCM_FORMAT_FLOAT64_BE ((__force snd_pcm_format_t) 17)
    149 #define SNDRV_PCM_FORMAT_IEC958_SUBFRAME_LE ((__force snd_pcm_format_t) 18)
    150 #define SNDRV_PCM_FORMAT_IEC958_SUBFRAME_BE ((__force snd_pcm_format_t) 19)
    151 #define SNDRV_PCM_FORMAT_MU_LAW ((__force snd_pcm_format_t) 20)
    152 #define SNDRV_PCM_FORMAT_A_LAW ((__force snd_pcm_format_t) 21)
    153 #define SNDRV_PCM_FORMAT_IMA_ADPCM ((__force snd_pcm_format_t) 22)
    154 #define SNDRV_PCM_FORMAT_MPEG ((__force snd_pcm_format_t) 23)
    155 #define SNDRV_PCM_FORMAT_GSM ((__force snd_pcm_format_t) 24)
    156 #define SNDRV_PCM_FORMAT_SPECIAL ((__force snd_pcm_format_t) 31)
    157 #define SNDRV_PCM_FORMAT_S24_3LE ((__force snd_pcm_format_t) 32)
    158 #define SNDRV_PCM_FORMAT_S24_3BE ((__force snd_pcm_format_t) 33)
    159 #define SNDRV_PCM_FORMAT_U24_3LE ((__force snd_pcm_format_t) 34)
    160 #define SNDRV_PCM_FORMAT_U24_3BE ((__force snd_pcm_format_t) 35)
    161 #define SNDRV_PCM_FORMAT_S20_3LE ((__force snd_pcm_format_t) 36)
    162 #define SNDRV_PCM_FORMAT_S20_3BE ((__force snd_pcm_format_t) 37)
    163 #define SNDRV_PCM_FORMAT_U20_3LE ((__force snd_pcm_format_t) 38)
    164 #define SNDRV_PCM_FORMAT_U20_3BE ((__force snd_pcm_format_t) 39)
    165 #define SNDRV_PCM_FORMAT_S18_3LE ((__force snd_pcm_format_t) 40)
    166 #define SNDRV_PCM_FORMAT_S18_3BE ((__force snd_pcm_format_t) 41)
    167 #define SNDRV_PCM_FORMAT_U18_3LE ((__force snd_pcm_format_t) 42)
    168 #define SNDRV_PCM_FORMAT_U18_3BE ((__force snd_pcm_format_t) 43)
    169 #define SNDRV_PCM_FORMAT_G723_24 ((__force snd_pcm_format_t) 44)
    170 #define SNDRV_PCM_FORMAT_G723_24_1B ((__force snd_pcm_format_t) 45)
    171 #define SNDRV_PCM_FORMAT_G723_40 ((__force snd_pcm_format_t) 46)
    172 #define SNDRV_PCM_FORMAT_G723_40_1B ((__force snd_pcm_format_t) 47)
    173 #define SNDRV_PCM_FORMAT_DSD_U8 ((__force snd_pcm_format_t) 48)
    174 #define SNDRV_PCM_FORMAT_DSD_U16_LE ((__force snd_pcm_format_t) 49)
    175 #define SNDRV_PCM_FORMAT_DSD_U32_LE ((__force snd_pcm_format_t) 50)
    176 #define SNDRV_PCM_FORMAT_DSD_U16_BE ((__force snd_pcm_format_t) 51)
    177 #define SNDRV_PCM_FORMAT_DSD_U32_BE ((__force snd_pcm_format_t) 52)
    178 #define SNDRV_PCM_FORMAT_LAST SNDRV_PCM_FORMAT_DSD_U32_BE
    179 #ifdef SNDRV_LITTLE_ENDIAN
    180 #define SNDRV_PCM_FORMAT_S16 SNDRV_PCM_FORMAT_S16_LE
    181 #define SNDRV_PCM_FORMAT_U16 SNDRV_PCM_FORMAT_U16_LE
    182 #define SNDRV_PCM_FORMAT_S24 SNDRV_PCM_FORMAT_S24_LE
    183 #define SNDRV_PCM_FORMAT_U24 SNDRV_PCM_FORMAT_U24_LE
    184 #define SNDRV_PCM_FORMAT_S32 SNDRV_PCM_FORMAT_S32_LE
    185 #define SNDRV_PCM_FORMAT_U32 SNDRV_PCM_FORMAT_U32_LE
    186 #define SNDRV_PCM_FORMAT_FLOAT SNDRV_PCM_FORMAT_FLOAT_LE
    187 #define SNDRV_PCM_FORMAT_FLOAT64 SNDRV_PCM_FORMAT_FLOAT64_LE
    188 #define SNDRV_PCM_FORMAT_IEC958_SUBFRAME SNDRV_PCM_FORMAT_IEC958_SUBFRAME_LE
    189 #endif
    190 #ifdef SNDRV_BIG_ENDIAN
    191 #define SNDRV_PCM_FORMAT_S16 SNDRV_PCM_FORMAT_S16_BE
    192 #define SNDRV_PCM_FORMAT_U16 SNDRV_PCM_FORMAT_U16_BE
    193 #define SNDRV_PCM_FORMAT_S24 SNDRV_PCM_FORMAT_S24_BE
    194 #define SNDRV_PCM_FORMAT_U24 SNDRV_PCM_FORMAT_U24_BE
    195 #define SNDRV_PCM_FORMAT_S32 SNDRV_PCM_FORMAT_S32_BE
    196 #define SNDRV_PCM_FORMAT_U32 SNDRV_PCM_FORMAT_U32_BE
    197 #define SNDRV_PCM_FORMAT_FLOAT SNDRV_PCM_FORMAT_FLOAT_BE
    198 #define SNDRV_PCM_FORMAT_FLOAT64 SNDRV_PCM_FORMAT_FLOAT64_BE
    199 #define SNDRV_PCM_FORMAT_IEC958_SUBFRAME SNDRV_PCM_FORMAT_IEC958_SUBFRAME_BE
    200 #endif
    201 typedef int __bitwise snd_pcm_subformat_t;
    202 #define SNDRV_PCM_SUBFORMAT_STD ((__force snd_pcm_subformat_t) 0)
    203 #define SNDRV_PCM_SUBFORMAT_LAST SNDRV_PCM_SUBFORMAT_STD
    204 #define SNDRV_PCM_INFO_MMAP 0x00000001
    205 #define SNDRV_PCM_INFO_MMAP_VALID 0x00000002
    206 #define SNDRV_PCM_INFO_DOUBLE 0x00000004
    207 #define SNDRV_PCM_INFO_BATCH 0x00000010
    208 #define SNDRV_PCM_INFO_SYNC_APPLPTR 0x00000020
    209 #define SNDRV_PCM_INFO_INTERLEAVED 0x00000100
    210 #define SNDRV_PCM_INFO_NONINTERLEAVED 0x00000200
    211 #define SNDRV_PCM_INFO_COMPLEX 0x00000400
    212 #define SNDRV_PCM_INFO_BLOCK_TRANSFER 0x00010000
    213 #define SNDRV_PCM_INFO_OVERRANGE 0x00020000
    214 #define SNDRV_PCM_INFO_RESUME 0x00040000
    215 #define SNDRV_PCM_INFO_PAUSE 0x00080000
    216 #define SNDRV_PCM_INFO_HALF_DUPLEX 0x00100000
    217 #define SNDRV_PCM_INFO_JOINT_DUPLEX 0x00200000
    218 #define SNDRV_PCM_INFO_SYNC_START 0x00400000
    219 #define SNDRV_PCM_INFO_NO_PERIOD_WAKEUP 0x00800000
    220 #define SNDRV_PCM_INFO_HAS_WALL_CLOCK 0x01000000
    221 #define SNDRV_PCM_INFO_HAS_LINK_ATIME 0x01000000
    222 #define SNDRV_PCM_INFO_HAS_LINK_ABSOLUTE_ATIME 0x02000000
    223 #define SNDRV_PCM_INFO_HAS_LINK_ESTIMATED_ATIME 0x04000000
    224 #define SNDRV_PCM_INFO_HAS_LINK_SYNCHRONIZED_ATIME 0x08000000
    225 #define SNDRV_PCM_INFO_DRAIN_TRIGGER 0x40000000
    226 #define SNDRV_PCM_INFO_FIFO_IN_FRAMES 0x80000000
    227 typedef int __bitwise snd_pcm_state_t;
    228 #define SNDRV_PCM_STATE_OPEN ((__force snd_pcm_state_t) 0)
    229 #define SNDRV_PCM_STATE_SETUP ((__force snd_pcm_state_t) 1)
    230 #define SNDRV_PCM_STATE_PREPARED ((__force snd_pcm_state_t) 2)
    231 #define SNDRV_PCM_STATE_RUNNING ((__force snd_pcm_state_t) 3)
    232 #define SNDRV_PCM_STATE_XRUN ((__force snd_pcm_state_t) 4)
    233 #define SNDRV_PCM_STATE_DRAINING ((__force snd_pcm_state_t) 5)
    234 #define SNDRV_PCM_STATE_PAUSED ((__force snd_pcm_state_t) 6)
    235 #define SNDRV_PCM_STATE_SUSPENDED ((__force snd_pcm_state_t) 7)
    236 #define SNDRV_PCM_STATE_DISCONNECTED ((__force snd_pcm_state_t) 8)
    237 #define SNDRV_PCM_STATE_LAST SNDRV_PCM_STATE_DISCONNECTED
    238 enum {
    239   SNDRV_PCM_MMAP_OFFSET_DATA = 0x00000000,
    240   SNDRV_PCM_MMAP_OFFSET_STATUS = 0x80000000,
    241   SNDRV_PCM_MMAP_OFFSET_CONTROL = 0x81000000,
    242 };
    243 union snd_pcm_sync_id {
    244   unsigned char id[16];
    245   unsigned short id16[8];
    246   unsigned int id32[4];
    247 };
    248 struct snd_pcm_info {
    249   unsigned int device;
    250   unsigned int subdevice;
    251   int stream;
    252   int card;
    253   unsigned char id[64];
    254   unsigned char name[80];
    255   unsigned char subname[32];
    256   int dev_class;
    257   int dev_subclass;
    258   unsigned int subdevices_count;
    259   unsigned int subdevices_avail;
    260   union snd_pcm_sync_id sync;
    261   unsigned char reserved[64];
    262 };
    263 typedef int snd_pcm_hw_param_t;
    264 #define SNDRV_PCM_HW_PARAM_ACCESS 0
    265 #define SNDRV_PCM_HW_PARAM_FORMAT 1
    266 #define SNDRV_PCM_HW_PARAM_SUBFORMAT 2
    267 #define SNDRV_PCM_HW_PARAM_FIRST_MASK SNDRV_PCM_HW_PARAM_ACCESS
    268 #define SNDRV_PCM_HW_PARAM_LAST_MASK SNDRV_PCM_HW_PARAM_SUBFORMAT
    269 #define SNDRV_PCM_HW_PARAM_SAMPLE_BITS 8
    270 #define SNDRV_PCM_HW_PARAM_FRAME_BITS 9
    271 #define SNDRV_PCM_HW_PARAM_CHANNELS 10
    272 #define SNDRV_PCM_HW_PARAM_RATE 11
    273 #define SNDRV_PCM_HW_PARAM_PERIOD_TIME 12
    274 #define SNDRV_PCM_HW_PARAM_PERIOD_SIZE 13
    275 #define SNDRV_PCM_HW_PARAM_PERIOD_BYTES 14
    276 #define SNDRV_PCM_HW_PARAM_PERIODS 15
    277 #define SNDRV_PCM_HW_PARAM_BUFFER_TIME 16
    278 #define SNDRV_PCM_HW_PARAM_BUFFER_SIZE 17
    279 #define SNDRV_PCM_HW_PARAM_BUFFER_BYTES 18
    280 #define SNDRV_PCM_HW_PARAM_TICK_TIME 19
    281 #define SNDRV_PCM_HW_PARAM_FIRST_INTERVAL SNDRV_PCM_HW_PARAM_SAMPLE_BITS
    282 #define SNDRV_PCM_HW_PARAM_LAST_INTERVAL SNDRV_PCM_HW_PARAM_TICK_TIME
    283 #define SNDRV_PCM_HW_PARAMS_NORESAMPLE (1 << 0)
    284 #define SNDRV_PCM_HW_PARAMS_EXPORT_BUFFER (1 << 1)
    285 #define SNDRV_PCM_HW_PARAMS_NO_PERIOD_WAKEUP (1 << 2)
    286 struct snd_interval {
    287   unsigned int min, max;
    288   unsigned int openmin : 1, openmax : 1, integer : 1, empty : 1;
    289 };
    290 #define SNDRV_MASK_MAX 256
    291 struct snd_mask {
    292   __u32 bits[(SNDRV_MASK_MAX + 31) / 32];
    293 };
    294 struct snd_pcm_hw_params {
    295   unsigned int flags;
    296   struct snd_mask masks[SNDRV_PCM_HW_PARAM_LAST_MASK - SNDRV_PCM_HW_PARAM_FIRST_MASK + 1];
    297   struct snd_mask mres[5];
    298   struct snd_interval intervals[SNDRV_PCM_HW_PARAM_LAST_INTERVAL - SNDRV_PCM_HW_PARAM_FIRST_INTERVAL + 1];
    299   struct snd_interval ires[9];
    300   unsigned int rmask;
    301   unsigned int cmask;
    302   unsigned int info;
    303   unsigned int msbits;
    304   unsigned int rate_num;
    305   unsigned int rate_den;
    306   snd_pcm_uframes_t fifo_size;
    307   unsigned char reserved[64];
    308 };
    309 enum {
    310   SNDRV_PCM_TSTAMP_NONE = 0,
    311   SNDRV_PCM_TSTAMP_ENABLE,
    312   SNDRV_PCM_TSTAMP_LAST = SNDRV_PCM_TSTAMP_ENABLE,
    313 };
    314 struct snd_pcm_sw_params {
    315   int tstamp_mode;
    316   unsigned int period_step;
    317   unsigned int sleep_min;
    318   snd_pcm_uframes_t avail_min;
    319   snd_pcm_uframes_t xfer_align;
    320   snd_pcm_uframes_t start_threshold;
    321   snd_pcm_uframes_t stop_threshold;
    322   snd_pcm_uframes_t silence_threshold;
    323   snd_pcm_uframes_t silence_size;
    324   snd_pcm_uframes_t boundary;
    325   unsigned int proto;
    326   unsigned int tstamp_type;
    327   unsigned char reserved[56];
    328 };
    329 struct snd_pcm_channel_info {
    330   unsigned int channel;
    331   __kernel_off_t offset;
    332   unsigned int first;
    333   unsigned int step;
    334 };
    335 enum {
    336   SNDRV_PCM_AUDIO_TSTAMP_TYPE_COMPAT = 0,
    337   SNDRV_PCM_AUDIO_TSTAMP_TYPE_DEFAULT = 1,
    338   SNDRV_PCM_AUDIO_TSTAMP_TYPE_LINK = 2,
    339   SNDRV_PCM_AUDIO_TSTAMP_TYPE_LINK_ABSOLUTE = 3,
    340   SNDRV_PCM_AUDIO_TSTAMP_TYPE_LINK_ESTIMATED = 4,
    341   SNDRV_PCM_AUDIO_TSTAMP_TYPE_LINK_SYNCHRONIZED = 5,
    342   SNDRV_PCM_AUDIO_TSTAMP_TYPE_LAST = SNDRV_PCM_AUDIO_TSTAMP_TYPE_LINK_SYNCHRONIZED
    343 };
    344 struct snd_pcm_status {
    345   snd_pcm_state_t state;
    346   struct timespec trigger_tstamp;
    347   struct timespec tstamp;
    348   snd_pcm_uframes_t appl_ptr;
    349   snd_pcm_uframes_t hw_ptr;
    350   snd_pcm_sframes_t delay;
    351   snd_pcm_uframes_t avail;
    352   snd_pcm_uframes_t avail_max;
    353   snd_pcm_uframes_t overrange;
    354   snd_pcm_state_t suspended_state;
    355   __u32 audio_tstamp_data;
    356   struct timespec audio_tstamp;
    357   struct timespec driver_tstamp;
    358   __u32 audio_tstamp_accuracy;
    359   unsigned char reserved[52 - 2 * sizeof(struct timespec)];
    360 };
    361 struct snd_pcm_mmap_status {
    362   snd_pcm_state_t state;
    363   int pad1;
    364   snd_pcm_uframes_t hw_ptr;
    365   struct timespec tstamp;
    366   snd_pcm_state_t suspended_state;
    367   struct timespec audio_tstamp;
    368 };
    369 struct snd_pcm_mmap_control {
    370   snd_pcm_uframes_t appl_ptr;
    371   snd_pcm_uframes_t avail_min;
    372 };
    373 #define SNDRV_PCM_SYNC_PTR_HWSYNC (1 << 0)
    374 #define SNDRV_PCM_SYNC_PTR_APPL (1 << 1)
    375 #define SNDRV_PCM_SYNC_PTR_AVAIL_MIN (1 << 2)
    376 struct snd_pcm_sync_ptr {
    377   unsigned int flags;
    378   union {
    379     struct snd_pcm_mmap_status status;
    380     unsigned char reserved[64];
    381   } s;
    382   union {
    383     struct snd_pcm_mmap_control control;
    384     unsigned char reserved[64];
    385   } c;
    386 };
    387 struct snd_xferi {
    388   snd_pcm_sframes_t result;
    389   void __user * buf;
    390   snd_pcm_uframes_t frames;
    391 };
    392 struct snd_xfern {
    393   snd_pcm_sframes_t result;
    394   void __user * __user * bufs;
    395   snd_pcm_uframes_t frames;
    396 };
    397 enum {
    398   SNDRV_PCM_TSTAMP_TYPE_GETTIMEOFDAY = 0,
    399   SNDRV_PCM_TSTAMP_TYPE_MONOTONIC,
    400   SNDRV_PCM_TSTAMP_TYPE_MONOTONIC_RAW,
    401   SNDRV_PCM_TSTAMP_TYPE_LAST = SNDRV_PCM_TSTAMP_TYPE_MONOTONIC_RAW,
    402 };
    403 enum {
    404   SNDRV_CHMAP_UNKNOWN = 0,
    405   SNDRV_CHMAP_NA,
    406   SNDRV_CHMAP_MONO,
    407   SNDRV_CHMAP_FL,
    408   SNDRV_CHMAP_FR,
    409   SNDRV_CHMAP_RL,
    410   SNDRV_CHMAP_RR,
    411   SNDRV_CHMAP_FC,
    412   SNDRV_CHMAP_LFE,
    413   SNDRV_CHMAP_SL,
    414   SNDRV_CHMAP_SR,
    415   SNDRV_CHMAP_RC,
    416   SNDRV_CHMAP_FLC,
    417   SNDRV_CHMAP_FRC,
    418   SNDRV_CHMAP_RLC,
    419   SNDRV_CHMAP_RRC,
    420   SNDRV_CHMAP_FLW,
    421   SNDRV_CHMAP_FRW,
    422   SNDRV_CHMAP_FLH,
    423   SNDRV_CHMAP_FCH,
    424   SNDRV_CHMAP_FRH,
    425   SNDRV_CHMAP_TC,
    426   SNDRV_CHMAP_TFL,
    427   SNDRV_CHMAP_TFR,
    428   SNDRV_CHMAP_TFC,
    429   SNDRV_CHMAP_TRL,
    430   SNDRV_CHMAP_TRR,
    431   SNDRV_CHMAP_TRC,
    432   SNDRV_CHMAP_TFLC,
    433   SNDRV_CHMAP_TFRC,
    434   SNDRV_CHMAP_TSL,
    435   SNDRV_CHMAP_TSR,
    436   SNDRV_CHMAP_LLFE,
    437   SNDRV_CHMAP_RLFE,
    438   SNDRV_CHMAP_BC,
    439   SNDRV_CHMAP_BLC,
    440   SNDRV_CHMAP_BRC,
    441   SNDRV_CHMAP_LAST = SNDRV_CHMAP_BRC,
    442 };
    443 #define SNDRV_CHMAP_POSITION_MASK 0xffff
    444 #define SNDRV_CHMAP_PHASE_INVERSE (0x01 << 16)
    445 #define SNDRV_CHMAP_DRIVER_SPEC (0x02 << 16)
    446 #define SNDRV_PCM_IOCTL_PVERSION _IOR('A', 0x00, int)
    447 #define SNDRV_PCM_IOCTL_INFO _IOR('A', 0x01, struct snd_pcm_info)
    448 #define SNDRV_PCM_IOCTL_TSTAMP _IOW('A', 0x02, int)
    449 #define SNDRV_PCM_IOCTL_TTSTAMP _IOW('A', 0x03, int)
    450 #define SNDRV_PCM_IOCTL_USER_PVERSION _IOW('A', 0x04, int)
    451 #define SNDRV_PCM_IOCTL_HW_REFINE _IOWR('A', 0x10, struct snd_pcm_hw_params)
    452 #define SNDRV_PCM_IOCTL_HW_PARAMS _IOWR('A', 0x11, struct snd_pcm_hw_params)
    453 #define SNDRV_PCM_IOCTL_HW_FREE _IO('A', 0x12)
    454 #define SNDRV_PCM_IOCTL_SW_PARAMS _IOWR('A', 0x13, struct snd_pcm_sw_params)
    455 #define SNDRV_PCM_IOCTL_STATUS _IOR('A', 0x20, struct snd_pcm_status)
    456 #define SNDRV_PCM_IOCTL_DELAY _IOR('A', 0x21, snd_pcm_sframes_t)
    457 #define SNDRV_PCM_IOCTL_HWSYNC _IO('A', 0x22)
    458 #define SNDRV_PCM_IOCTL_SYNC_PTR _IOWR('A', 0x23, struct snd_pcm_sync_ptr)
    459 #define SNDRV_PCM_IOCTL_STATUS_EXT _IOWR('A', 0x24, struct snd_pcm_status)
    460 #define SNDRV_PCM_IOCTL_CHANNEL_INFO _IOR('A', 0x32, struct snd_pcm_channel_info)
    461 #define SNDRV_PCM_IOCTL_PREPARE _IO('A', 0x40)
    462 #define SNDRV_PCM_IOCTL_RESET _IO('A', 0x41)
    463 #define SNDRV_PCM_IOCTL_START _IO('A', 0x42)
    464 #define SNDRV_PCM_IOCTL_DROP _IO('A', 0x43)
    465 #define SNDRV_PCM_IOCTL_DRAIN _IO('A', 0x44)
    466 #define SNDRV_PCM_IOCTL_PAUSE _IOW('A', 0x45, int)
    467 #define SNDRV_PCM_IOCTL_REWIND _IOW('A', 0x46, snd_pcm_uframes_t)
    468 #define SNDRV_PCM_IOCTL_RESUME _IO('A', 0x47)
    469 #define SNDRV_PCM_IOCTL_XRUN _IO('A', 0x48)
    470 #define SNDRV_PCM_IOCTL_FORWARD _IOW('A', 0x49, snd_pcm_uframes_t)
    471 #define SNDRV_PCM_IOCTL_WRITEI_FRAMES _IOW('A', 0x50, struct snd_xferi)
    472 #define SNDRV_PCM_IOCTL_READI_FRAMES _IOR('A', 0x51, struct snd_xferi)
    473 #define SNDRV_PCM_IOCTL_WRITEN_FRAMES _IOW('A', 0x52, struct snd_xfern)
    474 #define SNDRV_PCM_IOCTL_READN_FRAMES _IOR('A', 0x53, struct snd_xfern)
    475 #define SNDRV_PCM_IOCTL_LINK _IOW('A', 0x60, int)
    476 #define SNDRV_PCM_IOCTL_UNLINK _IO('A', 0x61)
    477 #define SNDRV_RAWMIDI_VERSION SNDRV_PROTOCOL_VERSION(2, 0, 0)
    478 enum {
    479   SNDRV_RAWMIDI_STREAM_OUTPUT = 0,
    480   SNDRV_RAWMIDI_STREAM_INPUT,
    481   SNDRV_RAWMIDI_STREAM_LAST = SNDRV_RAWMIDI_STREAM_INPUT,
    482 };
    483 #define SNDRV_RAWMIDI_INFO_OUTPUT 0x00000001
    484 #define SNDRV_RAWMIDI_INFO_INPUT 0x00000002
    485 #define SNDRV_RAWMIDI_INFO_DUPLEX 0x00000004
    486 struct snd_rawmidi_info {
    487   unsigned int device;
    488   unsigned int subdevice;
    489   int stream;
    490   int card;
    491   unsigned int flags;
    492   unsigned char id[64];
    493   unsigned char name[80];
    494   unsigned char subname[32];
    495   unsigned int subdevices_count;
    496   unsigned int subdevices_avail;
    497   unsigned char reserved[64];
    498 };
    499 struct snd_rawmidi_params {
    500   int stream;
    501   size_t buffer_size;
    502   size_t avail_min;
    503   unsigned int no_active_sensing : 1;
    504   unsigned char reserved[16];
    505 };
    506 struct snd_rawmidi_status {
    507   int stream;
    508   struct timespec tstamp;
    509   size_t avail;
    510   size_t xruns;
    511   unsigned char reserved[16];
    512 };
    513 #define SNDRV_RAWMIDI_IOCTL_PVERSION _IOR('W', 0x00, int)
    514 #define SNDRV_RAWMIDI_IOCTL_INFO _IOR('W', 0x01, struct snd_rawmidi_info)
    515 #define SNDRV_RAWMIDI_IOCTL_PARAMS _IOWR('W', 0x10, struct snd_rawmidi_params)
    516 #define SNDRV_RAWMIDI_IOCTL_STATUS _IOWR('W', 0x20, struct snd_rawmidi_status)
    517 #define SNDRV_RAWMIDI_IOCTL_DROP _IOW('W', 0x30, int)
    518 #define SNDRV_RAWMIDI_IOCTL_DRAIN _IOW('W', 0x31, int)
    519 #define SNDRV_TIMER_VERSION SNDRV_PROTOCOL_VERSION(2, 0, 6)
    520 enum {
    521   SNDRV_TIMER_CLASS_NONE = - 1,
    522   SNDRV_TIMER_CLASS_SLAVE = 0,
    523   SNDRV_TIMER_CLASS_GLOBAL,
    524   SNDRV_TIMER_CLASS_CARD,
    525   SNDRV_TIMER_CLASS_PCM,
    526   SNDRV_TIMER_CLASS_LAST = SNDRV_TIMER_CLASS_PCM,
    527 };
    528 enum {
    529   SNDRV_TIMER_SCLASS_NONE = 0,
    530   SNDRV_TIMER_SCLASS_APPLICATION,
    531   SNDRV_TIMER_SCLASS_SEQUENCER,
    532   SNDRV_TIMER_SCLASS_OSS_SEQUENCER,
    533   SNDRV_TIMER_SCLASS_LAST = SNDRV_TIMER_SCLASS_OSS_SEQUENCER,
    534 };
    535 #define SNDRV_TIMER_GLOBAL_SYSTEM 0
    536 #define SNDRV_TIMER_GLOBAL_RTC 1
    537 #define SNDRV_TIMER_GLOBAL_HPET 2
    538 #define SNDRV_TIMER_GLOBAL_HRTIMER 3
    539 #define SNDRV_TIMER_FLG_SLAVE (1 << 0)
    540 struct snd_timer_id {
    541   int dev_class;
    542   int dev_sclass;
    543   int card;
    544   int device;
    545   int subdevice;
    546 };
    547 struct snd_timer_ginfo {
    548   struct snd_timer_id tid;
    549   unsigned int flags;
    550   int card;
    551   unsigned char id[64];
    552   unsigned char name[80];
    553   unsigned long reserved0;
    554   unsigned long resolution;
    555   unsigned long resolution_min;
    556   unsigned long resolution_max;
    557   unsigned int clients;
    558   unsigned char reserved[32];
    559 };
    560 struct snd_timer_gparams {
    561   struct snd_timer_id tid;
    562   unsigned long period_num;
    563   unsigned long period_den;
    564   unsigned char reserved[32];
    565 };
    566 struct snd_timer_gstatus {
    567   struct snd_timer_id tid;
    568   unsigned long resolution;
    569   unsigned long resolution_num;
    570   unsigned long resolution_den;
    571   unsigned char reserved[32];
    572 };
    573 struct snd_timer_select {
    574   struct snd_timer_id id;
    575   unsigned char reserved[32];
    576 };
    577 struct snd_timer_info {
    578   unsigned int flags;
    579   int card;
    580   unsigned char id[64];
    581   unsigned char name[80];
    582   unsigned long reserved0;
    583   unsigned long resolution;
    584   unsigned char reserved[64];
    585 };
    586 #define SNDRV_TIMER_PSFLG_AUTO (1 << 0)
    587 #define SNDRV_TIMER_PSFLG_EXCLUSIVE (1 << 1)
    588 #define SNDRV_TIMER_PSFLG_EARLY_EVENT (1 << 2)
    589 struct snd_timer_params {
    590   unsigned int flags;
    591   unsigned int ticks;
    592   unsigned int queue_size;
    593   unsigned int reserved0;
    594   unsigned int filter;
    595   unsigned char reserved[60];
    596 };
    597 struct snd_timer_status {
    598   struct timespec tstamp;
    599   unsigned int resolution;
    600   unsigned int lost;
    601   unsigned int overrun;
    602   unsigned int queue;
    603   unsigned char reserved[64];
    604 };
    605 #define SNDRV_TIMER_IOCTL_PVERSION _IOR('T', 0x00, int)
    606 #define SNDRV_TIMER_IOCTL_NEXT_DEVICE _IOWR('T', 0x01, struct snd_timer_id)
    607 #define SNDRV_TIMER_IOCTL_TREAD _IOW('T', 0x02, int)
    608 #define SNDRV_TIMER_IOCTL_GINFO _IOWR('T', 0x03, struct snd_timer_ginfo)
    609 #define SNDRV_TIMER_IOCTL_GPARAMS _IOW('T', 0x04, struct snd_timer_gparams)
    610 #define SNDRV_TIMER_IOCTL_GSTATUS _IOWR('T', 0x05, struct snd_timer_gstatus)
    611 #define SNDRV_TIMER_IOCTL_SELECT _IOW('T', 0x10, struct snd_timer_select)
    612 #define SNDRV_TIMER_IOCTL_INFO _IOR('T', 0x11, struct snd_timer_info)
    613 #define SNDRV_TIMER_IOCTL_PARAMS _IOW('T', 0x12, struct snd_timer_params)
    614 #define SNDRV_TIMER_IOCTL_STATUS _IOR('T', 0x14, struct snd_timer_status)
    615 #define SNDRV_TIMER_IOCTL_START _IO('T', 0xa0)
    616 #define SNDRV_TIMER_IOCTL_STOP _IO('T', 0xa1)
    617 #define SNDRV_TIMER_IOCTL_CONTINUE _IO('T', 0xa2)
    618 #define SNDRV_TIMER_IOCTL_PAUSE _IO('T', 0xa3)
    619 struct snd_timer_read {
    620   unsigned int resolution;
    621   unsigned int ticks;
    622 };
    623 enum {
    624   SNDRV_TIMER_EVENT_RESOLUTION = 0,
    625   SNDRV_TIMER_EVENT_TICK,
    626   SNDRV_TIMER_EVENT_START,
    627   SNDRV_TIMER_EVENT_STOP,
    628   SNDRV_TIMER_EVENT_CONTINUE,
    629   SNDRV_TIMER_EVENT_PAUSE,
    630   SNDRV_TIMER_EVENT_EARLY,
    631   SNDRV_TIMER_EVENT_SUSPEND,
    632   SNDRV_TIMER_EVENT_RESUME,
    633   SNDRV_TIMER_EVENT_MSTART = SNDRV_TIMER_EVENT_START + 10,
    634   SNDRV_TIMER_EVENT_MSTOP = SNDRV_TIMER_EVENT_STOP + 10,
    635   SNDRV_TIMER_EVENT_MCONTINUE = SNDRV_TIMER_EVENT_CONTINUE + 10,
    636   SNDRV_TIMER_EVENT_MPAUSE = SNDRV_TIMER_EVENT_PAUSE + 10,
    637   SNDRV_TIMER_EVENT_MSUSPEND = SNDRV_TIMER_EVENT_SUSPEND + 10,
    638   SNDRV_TIMER_EVENT_MRESUME = SNDRV_TIMER_EVENT_RESUME + 10,
    639 };
    640 struct snd_timer_tread {
    641   int event;
    642   struct timespec tstamp;
    643   unsigned int val;
    644 };
    645 #define SNDRV_CTL_VERSION SNDRV_PROTOCOL_VERSION(2, 0, 7)
    646 struct snd_ctl_card_info {
    647   int card;
    648   int pad;
    649   unsigned char id[16];
    650   unsigned char driver[16];
    651   unsigned char name[32];
    652   unsigned char longname[80];
    653   unsigned char reserved_[16];
    654   unsigned char mixername[80];
    655   unsigned char components[128];
    656 };
    657 typedef int __bitwise snd_ctl_elem_type_t;
    658 #define SNDRV_CTL_ELEM_TYPE_NONE ((__force snd_ctl_elem_type_t) 0)
    659 #define SNDRV_CTL_ELEM_TYPE_BOOLEAN ((__force snd_ctl_elem_type_t) 1)
    660 #define SNDRV_CTL_ELEM_TYPE_INTEGER ((__force snd_ctl_elem_type_t) 2)
    661 #define SNDRV_CTL_ELEM_TYPE_ENUMERATED ((__force snd_ctl_elem_type_t) 3)
    662 #define SNDRV_CTL_ELEM_TYPE_BYTES ((__force snd_ctl_elem_type_t) 4)
    663 #define SNDRV_CTL_ELEM_TYPE_IEC958 ((__force snd_ctl_elem_type_t) 5)
    664 #define SNDRV_CTL_ELEM_TYPE_INTEGER64 ((__force snd_ctl_elem_type_t) 6)
    665 #define SNDRV_CTL_ELEM_TYPE_LAST SNDRV_CTL_ELEM_TYPE_INTEGER64
    666 typedef int __bitwise snd_ctl_elem_iface_t;
    667 #define SNDRV_CTL_ELEM_IFACE_CARD ((__force snd_ctl_elem_iface_t) 0)
    668 #define SNDRV_CTL_ELEM_IFACE_HWDEP ((__force snd_ctl_elem_iface_t) 1)
    669 #define SNDRV_CTL_ELEM_IFACE_MIXER ((__force snd_ctl_elem_iface_t) 2)
    670 #define SNDRV_CTL_ELEM_IFACE_PCM ((__force snd_ctl_elem_iface_t) 3)
    671 #define SNDRV_CTL_ELEM_IFACE_RAWMIDI ((__force snd_ctl_elem_iface_t) 4)
    672 #define SNDRV_CTL_ELEM_IFACE_TIMER ((__force snd_ctl_elem_iface_t) 5)
    673 #define SNDRV_CTL_ELEM_IFACE_SEQUENCER ((__force snd_ctl_elem_iface_t) 6)
    674 #define SNDRV_CTL_ELEM_IFACE_LAST SNDRV_CTL_ELEM_IFACE_SEQUENCER
    675 #define SNDRV_CTL_ELEM_ACCESS_READ (1 << 0)
    676 #define SNDRV_CTL_ELEM_ACCESS_WRITE (1 << 1)
    677 #define SNDRV_CTL_ELEM_ACCESS_READWRITE (SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_WRITE)
    678 #define SNDRV_CTL_ELEM_ACCESS_VOLATILE (1 << 2)
    679 #define SNDRV_CTL_ELEM_ACCESS_TIMESTAMP (1 << 3)
    680 #define SNDRV_CTL_ELEM_ACCESS_TLV_READ (1 << 4)
    681 #define SNDRV_CTL_ELEM_ACCESS_TLV_WRITE (1 << 5)
    682 #define SNDRV_CTL_ELEM_ACCESS_TLV_READWRITE (SNDRV_CTL_ELEM_ACCESS_TLV_READ | SNDRV_CTL_ELEM_ACCESS_TLV_WRITE)
    683 #define SNDRV_CTL_ELEM_ACCESS_TLV_COMMAND (1 << 6)
    684 #define SNDRV_CTL_ELEM_ACCESS_INACTIVE (1 << 8)
    685 #define SNDRV_CTL_ELEM_ACCESS_LOCK (1 << 9)
    686 #define SNDRV_CTL_ELEM_ACCESS_OWNER (1 << 10)
    687 #define SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK (1 << 28)
    688 #define SNDRV_CTL_ELEM_ACCESS_USER (1 << 29)
    689 #define SNDRV_CTL_POWER_D0 0x0000
    690 #define SNDRV_CTL_POWER_D1 0x0100
    691 #define SNDRV_CTL_POWER_D2 0x0200
    692 #define SNDRV_CTL_POWER_D3 0x0300
    693 #define SNDRV_CTL_POWER_D3hot (SNDRV_CTL_POWER_D3 | 0x0000)
    694 #define SNDRV_CTL_POWER_D3cold (SNDRV_CTL_POWER_D3 | 0x0001)
    695 #define SNDRV_CTL_ELEM_ID_NAME_MAXLEN 44
    696 struct snd_ctl_elem_id {
    697   unsigned int numid;
    698   snd_ctl_elem_iface_t iface;
    699   unsigned int device;
    700   unsigned int subdevice;
    701   unsigned char name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
    702   unsigned int index;
    703 };
    704 struct snd_ctl_elem_list {
    705   unsigned int offset;
    706   unsigned int space;
    707   unsigned int used;
    708   unsigned int count;
    709   struct snd_ctl_elem_id __user * pids;
    710   unsigned char reserved[50];
    711 };
    712 struct snd_ctl_elem_info {
    713   struct snd_ctl_elem_id id;
    714   snd_ctl_elem_type_t type;
    715   unsigned int access;
    716   unsigned int count;
    717   __kernel_pid_t owner;
    718   union {
    719     struct {
    720       long min;
    721       long max;
    722       long step;
    723     } integer;
    724     struct {
    725       long long min;
    726       long long max;
    727       long long step;
    728     } integer64;
    729     struct {
    730       unsigned int items;
    731       unsigned int item;
    732       char name[64];
    733       __u64 names_ptr;
    734       unsigned int names_length;
    735     } enumerated;
    736     unsigned char reserved[128];
    737   } value;
    738   union {
    739     unsigned short d[4];
    740     unsigned short * d_ptr;
    741   } dimen;
    742   unsigned char reserved[64 - 4 * sizeof(unsigned short)];
    743 };
    744 struct snd_ctl_elem_value {
    745   struct snd_ctl_elem_id id;
    746   unsigned int indirect : 1;
    747   union {
    748     union {
    749       long value[128];
    750       long * value_ptr;
    751     } integer;
    752     union {
    753       long long value[64];
    754       long long * value_ptr;
    755     } integer64;
    756     union {
    757       unsigned int item[128];
    758       unsigned int * item_ptr;
    759     } enumerated;
    760     union {
    761       unsigned char data[512];
    762       unsigned char * data_ptr;
    763     } bytes;
    764     struct snd_aes_iec958 iec958;
    765   } value;
    766   struct timespec tstamp;
    767   unsigned char reserved[128 - sizeof(struct timespec)];
    768 };
    769 struct snd_ctl_tlv {
    770   unsigned int numid;
    771   unsigned int length;
    772   unsigned int tlv[0];
    773 };
    774 #define SNDRV_CTL_IOCTL_PVERSION _IOR('U', 0x00, int)
    775 #define SNDRV_CTL_IOCTL_CARD_INFO _IOR('U', 0x01, struct snd_ctl_card_info)
    776 #define SNDRV_CTL_IOCTL_ELEM_LIST _IOWR('U', 0x10, struct snd_ctl_elem_list)
    777 #define SNDRV_CTL_IOCTL_ELEM_INFO _IOWR('U', 0x11, struct snd_ctl_elem_info)
    778 #define SNDRV_CTL_IOCTL_ELEM_READ _IOWR('U', 0x12, struct snd_ctl_elem_value)
    779 #define SNDRV_CTL_IOCTL_ELEM_WRITE _IOWR('U', 0x13, struct snd_ctl_elem_value)
    780 #define SNDRV_CTL_IOCTL_ELEM_LOCK _IOW('U', 0x14, struct snd_ctl_elem_id)
    781 #define SNDRV_CTL_IOCTL_ELEM_UNLOCK _IOW('U', 0x15, struct snd_ctl_elem_id)
    782 #define SNDRV_CTL_IOCTL_SUBSCRIBE_EVENTS _IOWR('U', 0x16, int)
    783 #define SNDRV_CTL_IOCTL_ELEM_ADD _IOWR('U', 0x17, struct snd_ctl_elem_info)
    784 #define SNDRV_CTL_IOCTL_ELEM_REPLACE _IOWR('U', 0x18, struct snd_ctl_elem_info)
    785 #define SNDRV_CTL_IOCTL_ELEM_REMOVE _IOWR('U', 0x19, struct snd_ctl_elem_id)
    786 #define SNDRV_CTL_IOCTL_TLV_READ _IOWR('U', 0x1a, struct snd_ctl_tlv)
    787 #define SNDRV_CTL_IOCTL_TLV_WRITE _IOWR('U', 0x1b, struct snd_ctl_tlv)
    788 #define SNDRV_CTL_IOCTL_TLV_COMMAND _IOWR('U', 0x1c, struct snd_ctl_tlv)
    789 #define SNDRV_CTL_IOCTL_HWDEP_NEXT_DEVICE _IOWR('U', 0x20, int)
    790 #define SNDRV_CTL_IOCTL_HWDEP_INFO _IOR('U', 0x21, struct snd_hwdep_info)
    791 #define SNDRV_CTL_IOCTL_PCM_NEXT_DEVICE _IOR('U', 0x30, int)
    792 #define SNDRV_CTL_IOCTL_PCM_INFO _IOWR('U', 0x31, struct snd_pcm_info)
    793 #define SNDRV_CTL_IOCTL_PCM_PREFER_SUBDEVICE _IOW('U', 0x32, int)
    794 #define SNDRV_CTL_IOCTL_RAWMIDI_NEXT_DEVICE _IOWR('U', 0x40, int)
    795 #define SNDRV_CTL_IOCTL_RAWMIDI_INFO _IOWR('U', 0x41, struct snd_rawmidi_info)
    796 #define SNDRV_CTL_IOCTL_RAWMIDI_PREFER_SUBDEVICE _IOW('U', 0x42, int)
    797 #define SNDRV_CTL_IOCTL_POWER _IOWR('U', 0xd0, int)
    798 #define SNDRV_CTL_IOCTL_POWER_STATE _IOR('U', 0xd1, int)
    799 enum sndrv_ctl_event_type {
    800   SNDRV_CTL_EVENT_ELEM = 0,
    801   SNDRV_CTL_EVENT_LAST = SNDRV_CTL_EVENT_ELEM,
    802 };
    803 #define SNDRV_CTL_EVENT_MASK_VALUE (1 << 0)
    804 #define SNDRV_CTL_EVENT_MASK_INFO (1 << 1)
    805 #define SNDRV_CTL_EVENT_MASK_ADD (1 << 2)
    806 #define SNDRV_CTL_EVENT_MASK_TLV (1 << 3)
    807 #define SNDRV_CTL_EVENT_MASK_REMOVE (~0U)
    808 struct snd_ctl_event {
    809   int type;
    810   union {
    811     struct {
    812       unsigned int mask;
    813       struct snd_ctl_elem_id id;
    814     } elem;
    815     unsigned char data8[60];
    816   } data;
    817 };
    818 #define SNDRV_CTL_NAME_NONE ""
    819 #define SNDRV_CTL_NAME_PLAYBACK "Playback "
    820 #define SNDRV_CTL_NAME_CAPTURE "Capture "
    821 #define SNDRV_CTL_NAME_IEC958_NONE ""
    822 #define SNDRV_CTL_NAME_IEC958_SWITCH "Switch"
    823 #define SNDRV_CTL_NAME_IEC958_VOLUME "Volume"
    824 #define SNDRV_CTL_NAME_IEC958_DEFAULT "Default"
    825 #define SNDRV_CTL_NAME_IEC958_MASK "Mask"
    826 #define SNDRV_CTL_NAME_IEC958_CON_MASK "Con Mask"
    827 #define SNDRV_CTL_NAME_IEC958_PRO_MASK "Pro Mask"
    828 #define SNDRV_CTL_NAME_IEC958_PCM_STREAM "PCM Stream"
    829 #define SNDRV_CTL_NAME_IEC958(expl,direction,what) "IEC958 " expl SNDRV_CTL_NAME_ ##direction SNDRV_CTL_NAME_IEC958_ ##what
    830 #endif
    831