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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_S20_LE ((__force snd_pcm_format_t) 25)
    157 #define SNDRV_PCM_FORMAT_S20_BE ((__force snd_pcm_format_t) 26)
    158 #define SNDRV_PCM_FORMAT_U20_LE ((__force snd_pcm_format_t) 27)
    159 #define SNDRV_PCM_FORMAT_U20_BE ((__force snd_pcm_format_t) 28)
    160 #define SNDRV_PCM_FORMAT_SPECIAL ((__force snd_pcm_format_t) 31)
    161 #define SNDRV_PCM_FORMAT_S24_3LE ((__force snd_pcm_format_t) 32)
    162 #define SNDRV_PCM_FORMAT_S24_3BE ((__force snd_pcm_format_t) 33)
    163 #define SNDRV_PCM_FORMAT_U24_3LE ((__force snd_pcm_format_t) 34)
    164 #define SNDRV_PCM_FORMAT_U24_3BE ((__force snd_pcm_format_t) 35)
    165 #define SNDRV_PCM_FORMAT_S20_3LE ((__force snd_pcm_format_t) 36)
    166 #define SNDRV_PCM_FORMAT_S20_3BE ((__force snd_pcm_format_t) 37)
    167 #define SNDRV_PCM_FORMAT_U20_3LE ((__force snd_pcm_format_t) 38)
    168 #define SNDRV_PCM_FORMAT_U20_3BE ((__force snd_pcm_format_t) 39)
    169 #define SNDRV_PCM_FORMAT_S18_3LE ((__force snd_pcm_format_t) 40)
    170 #define SNDRV_PCM_FORMAT_S18_3BE ((__force snd_pcm_format_t) 41)
    171 #define SNDRV_PCM_FORMAT_U18_3LE ((__force snd_pcm_format_t) 42)
    172 #define SNDRV_PCM_FORMAT_U18_3BE ((__force snd_pcm_format_t) 43)
    173 #define SNDRV_PCM_FORMAT_G723_24 ((__force snd_pcm_format_t) 44)
    174 #define SNDRV_PCM_FORMAT_G723_24_1B ((__force snd_pcm_format_t) 45)
    175 #define SNDRV_PCM_FORMAT_G723_40 ((__force snd_pcm_format_t) 46)
    176 #define SNDRV_PCM_FORMAT_G723_40_1B ((__force snd_pcm_format_t) 47)
    177 #define SNDRV_PCM_FORMAT_DSD_U8 ((__force snd_pcm_format_t) 48)
    178 #define SNDRV_PCM_FORMAT_DSD_U16_LE ((__force snd_pcm_format_t) 49)
    179 #define SNDRV_PCM_FORMAT_DSD_U32_LE ((__force snd_pcm_format_t) 50)
    180 #define SNDRV_PCM_FORMAT_DSD_U16_BE ((__force snd_pcm_format_t) 51)
    181 #define SNDRV_PCM_FORMAT_DSD_U32_BE ((__force snd_pcm_format_t) 52)
    182 #define SNDRV_PCM_FORMAT_LAST SNDRV_PCM_FORMAT_DSD_U32_BE
    183 #define SNDRV_PCM_FORMAT_FIRST SNDRV_PCM_FORMAT_S8
    184 #ifdef SNDRV_LITTLE_ENDIAN
    185 #define SNDRV_PCM_FORMAT_S16 SNDRV_PCM_FORMAT_S16_LE
    186 #define SNDRV_PCM_FORMAT_U16 SNDRV_PCM_FORMAT_U16_LE
    187 #define SNDRV_PCM_FORMAT_S24 SNDRV_PCM_FORMAT_S24_LE
    188 #define SNDRV_PCM_FORMAT_U24 SNDRV_PCM_FORMAT_U24_LE
    189 #define SNDRV_PCM_FORMAT_S32 SNDRV_PCM_FORMAT_S32_LE
    190 #define SNDRV_PCM_FORMAT_U32 SNDRV_PCM_FORMAT_U32_LE
    191 #define SNDRV_PCM_FORMAT_FLOAT SNDRV_PCM_FORMAT_FLOAT_LE
    192 #define SNDRV_PCM_FORMAT_FLOAT64 SNDRV_PCM_FORMAT_FLOAT64_LE
    193 #define SNDRV_PCM_FORMAT_IEC958_SUBFRAME SNDRV_PCM_FORMAT_IEC958_SUBFRAME_LE
    194 #define SNDRV_PCM_FORMAT_S20 SNDRV_PCM_FORMAT_S20_LE
    195 #define SNDRV_PCM_FORMAT_U20 SNDRV_PCM_FORMAT_U20_LE
    196 #endif
    197 #ifdef SNDRV_BIG_ENDIAN
    198 #define SNDRV_PCM_FORMAT_S16 SNDRV_PCM_FORMAT_S16_BE
    199 #define SNDRV_PCM_FORMAT_U16 SNDRV_PCM_FORMAT_U16_BE
    200 #define SNDRV_PCM_FORMAT_S24 SNDRV_PCM_FORMAT_S24_BE
    201 #define SNDRV_PCM_FORMAT_U24 SNDRV_PCM_FORMAT_U24_BE
    202 #define SNDRV_PCM_FORMAT_S32 SNDRV_PCM_FORMAT_S32_BE
    203 #define SNDRV_PCM_FORMAT_U32 SNDRV_PCM_FORMAT_U32_BE
    204 #define SNDRV_PCM_FORMAT_FLOAT SNDRV_PCM_FORMAT_FLOAT_BE
    205 #define SNDRV_PCM_FORMAT_FLOAT64 SNDRV_PCM_FORMAT_FLOAT64_BE
    206 #define SNDRV_PCM_FORMAT_IEC958_SUBFRAME SNDRV_PCM_FORMAT_IEC958_SUBFRAME_BE
    207 #define SNDRV_PCM_FORMAT_S20 SNDRV_PCM_FORMAT_S20_BE
    208 #define SNDRV_PCM_FORMAT_U20 SNDRV_PCM_FORMAT_U20_BE
    209 #endif
    210 typedef int __bitwise snd_pcm_subformat_t;
    211 #define SNDRV_PCM_SUBFORMAT_STD ((__force snd_pcm_subformat_t) 0)
    212 #define SNDRV_PCM_SUBFORMAT_LAST SNDRV_PCM_SUBFORMAT_STD
    213 #define SNDRV_PCM_INFO_MMAP 0x00000001
    214 #define SNDRV_PCM_INFO_MMAP_VALID 0x00000002
    215 #define SNDRV_PCM_INFO_DOUBLE 0x00000004
    216 #define SNDRV_PCM_INFO_BATCH 0x00000010
    217 #define SNDRV_PCM_INFO_SYNC_APPLPTR 0x00000020
    218 #define SNDRV_PCM_INFO_INTERLEAVED 0x00000100
    219 #define SNDRV_PCM_INFO_NONINTERLEAVED 0x00000200
    220 #define SNDRV_PCM_INFO_COMPLEX 0x00000400
    221 #define SNDRV_PCM_INFO_BLOCK_TRANSFER 0x00010000
    222 #define SNDRV_PCM_INFO_OVERRANGE 0x00020000
    223 #define SNDRV_PCM_INFO_RESUME 0x00040000
    224 #define SNDRV_PCM_INFO_PAUSE 0x00080000
    225 #define SNDRV_PCM_INFO_HALF_DUPLEX 0x00100000
    226 #define SNDRV_PCM_INFO_JOINT_DUPLEX 0x00200000
    227 #define SNDRV_PCM_INFO_SYNC_START 0x00400000
    228 #define SNDRV_PCM_INFO_NO_PERIOD_WAKEUP 0x00800000
    229 #define SNDRV_PCM_INFO_HAS_WALL_CLOCK 0x01000000
    230 #define SNDRV_PCM_INFO_HAS_LINK_ATIME 0x01000000
    231 #define SNDRV_PCM_INFO_HAS_LINK_ABSOLUTE_ATIME 0x02000000
    232 #define SNDRV_PCM_INFO_HAS_LINK_ESTIMATED_ATIME 0x04000000
    233 #define SNDRV_PCM_INFO_HAS_LINK_SYNCHRONIZED_ATIME 0x08000000
    234 #define SNDRV_PCM_INFO_DRAIN_TRIGGER 0x40000000
    235 #define SNDRV_PCM_INFO_FIFO_IN_FRAMES 0x80000000
    236 typedef int __bitwise snd_pcm_state_t;
    237 #define SNDRV_PCM_STATE_OPEN ((__force snd_pcm_state_t) 0)
    238 #define SNDRV_PCM_STATE_SETUP ((__force snd_pcm_state_t) 1)
    239 #define SNDRV_PCM_STATE_PREPARED ((__force snd_pcm_state_t) 2)
    240 #define SNDRV_PCM_STATE_RUNNING ((__force snd_pcm_state_t) 3)
    241 #define SNDRV_PCM_STATE_XRUN ((__force snd_pcm_state_t) 4)
    242 #define SNDRV_PCM_STATE_DRAINING ((__force snd_pcm_state_t) 5)
    243 #define SNDRV_PCM_STATE_PAUSED ((__force snd_pcm_state_t) 6)
    244 #define SNDRV_PCM_STATE_SUSPENDED ((__force snd_pcm_state_t) 7)
    245 #define SNDRV_PCM_STATE_DISCONNECTED ((__force snd_pcm_state_t) 8)
    246 #define SNDRV_PCM_STATE_LAST SNDRV_PCM_STATE_DISCONNECTED
    247 enum {
    248   SNDRV_PCM_MMAP_OFFSET_DATA = 0x00000000,
    249   SNDRV_PCM_MMAP_OFFSET_STATUS = 0x80000000,
    250   SNDRV_PCM_MMAP_OFFSET_CONTROL = 0x81000000,
    251 };
    252 union snd_pcm_sync_id {
    253   unsigned char id[16];
    254   unsigned short id16[8];
    255   unsigned int id32[4];
    256 };
    257 struct snd_pcm_info {
    258   unsigned int device;
    259   unsigned int subdevice;
    260   int stream;
    261   int card;
    262   unsigned char id[64];
    263   unsigned char name[80];
    264   unsigned char subname[32];
    265   int dev_class;
    266   int dev_subclass;
    267   unsigned int subdevices_count;
    268   unsigned int subdevices_avail;
    269   union snd_pcm_sync_id sync;
    270   unsigned char reserved[64];
    271 };
    272 typedef int snd_pcm_hw_param_t;
    273 #define SNDRV_PCM_HW_PARAM_ACCESS 0
    274 #define SNDRV_PCM_HW_PARAM_FORMAT 1
    275 #define SNDRV_PCM_HW_PARAM_SUBFORMAT 2
    276 #define SNDRV_PCM_HW_PARAM_FIRST_MASK SNDRV_PCM_HW_PARAM_ACCESS
    277 #define SNDRV_PCM_HW_PARAM_LAST_MASK SNDRV_PCM_HW_PARAM_SUBFORMAT
    278 #define SNDRV_PCM_HW_PARAM_SAMPLE_BITS 8
    279 #define SNDRV_PCM_HW_PARAM_FRAME_BITS 9
    280 #define SNDRV_PCM_HW_PARAM_CHANNELS 10
    281 #define SNDRV_PCM_HW_PARAM_RATE 11
    282 #define SNDRV_PCM_HW_PARAM_PERIOD_TIME 12
    283 #define SNDRV_PCM_HW_PARAM_PERIOD_SIZE 13
    284 #define SNDRV_PCM_HW_PARAM_PERIOD_BYTES 14
    285 #define SNDRV_PCM_HW_PARAM_PERIODS 15
    286 #define SNDRV_PCM_HW_PARAM_BUFFER_TIME 16
    287 #define SNDRV_PCM_HW_PARAM_BUFFER_SIZE 17
    288 #define SNDRV_PCM_HW_PARAM_BUFFER_BYTES 18
    289 #define SNDRV_PCM_HW_PARAM_TICK_TIME 19
    290 #define SNDRV_PCM_HW_PARAM_FIRST_INTERVAL SNDRV_PCM_HW_PARAM_SAMPLE_BITS
    291 #define SNDRV_PCM_HW_PARAM_LAST_INTERVAL SNDRV_PCM_HW_PARAM_TICK_TIME
    292 #define SNDRV_PCM_HW_PARAMS_NORESAMPLE (1 << 0)
    293 #define SNDRV_PCM_HW_PARAMS_EXPORT_BUFFER (1 << 1)
    294 #define SNDRV_PCM_HW_PARAMS_NO_PERIOD_WAKEUP (1 << 2)
    295 struct snd_interval {
    296   unsigned int min, max;
    297   unsigned int openmin : 1, openmax : 1, integer : 1, empty : 1;
    298 };
    299 #define SNDRV_MASK_MAX 256
    300 struct snd_mask {
    301   __u32 bits[(SNDRV_MASK_MAX + 31) / 32];
    302 };
    303 struct snd_pcm_hw_params {
    304   unsigned int flags;
    305   struct snd_mask masks[SNDRV_PCM_HW_PARAM_LAST_MASK - SNDRV_PCM_HW_PARAM_FIRST_MASK + 1];
    306   struct snd_mask mres[5];
    307   struct snd_interval intervals[SNDRV_PCM_HW_PARAM_LAST_INTERVAL - SNDRV_PCM_HW_PARAM_FIRST_INTERVAL + 1];
    308   struct snd_interval ires[9];
    309   unsigned int rmask;
    310   unsigned int cmask;
    311   unsigned int info;
    312   unsigned int msbits;
    313   unsigned int rate_num;
    314   unsigned int rate_den;
    315   snd_pcm_uframes_t fifo_size;
    316   unsigned char reserved[64];
    317 };
    318 enum {
    319   SNDRV_PCM_TSTAMP_NONE = 0,
    320   SNDRV_PCM_TSTAMP_ENABLE,
    321   SNDRV_PCM_TSTAMP_LAST = SNDRV_PCM_TSTAMP_ENABLE,
    322 };
    323 struct snd_pcm_sw_params {
    324   int tstamp_mode;
    325   unsigned int period_step;
    326   unsigned int sleep_min;
    327   snd_pcm_uframes_t avail_min;
    328   snd_pcm_uframes_t xfer_align;
    329   snd_pcm_uframes_t start_threshold;
    330   snd_pcm_uframes_t stop_threshold;
    331   snd_pcm_uframes_t silence_threshold;
    332   snd_pcm_uframes_t silence_size;
    333   snd_pcm_uframes_t boundary;
    334   unsigned int proto;
    335   unsigned int tstamp_type;
    336   unsigned char reserved[56];
    337 };
    338 struct snd_pcm_channel_info {
    339   unsigned int channel;
    340   __kernel_off_t offset;
    341   unsigned int first;
    342   unsigned int step;
    343 };
    344 enum {
    345   SNDRV_PCM_AUDIO_TSTAMP_TYPE_COMPAT = 0,
    346   SNDRV_PCM_AUDIO_TSTAMP_TYPE_DEFAULT = 1,
    347   SNDRV_PCM_AUDIO_TSTAMP_TYPE_LINK = 2,
    348   SNDRV_PCM_AUDIO_TSTAMP_TYPE_LINK_ABSOLUTE = 3,
    349   SNDRV_PCM_AUDIO_TSTAMP_TYPE_LINK_ESTIMATED = 4,
    350   SNDRV_PCM_AUDIO_TSTAMP_TYPE_LINK_SYNCHRONIZED = 5,
    351   SNDRV_PCM_AUDIO_TSTAMP_TYPE_LAST = SNDRV_PCM_AUDIO_TSTAMP_TYPE_LINK_SYNCHRONIZED
    352 };
    353 struct snd_pcm_status {
    354   snd_pcm_state_t state;
    355   struct timespec trigger_tstamp;
    356   struct timespec tstamp;
    357   snd_pcm_uframes_t appl_ptr;
    358   snd_pcm_uframes_t hw_ptr;
    359   snd_pcm_sframes_t delay;
    360   snd_pcm_uframes_t avail;
    361   snd_pcm_uframes_t avail_max;
    362   snd_pcm_uframes_t overrange;
    363   snd_pcm_state_t suspended_state;
    364   __u32 audio_tstamp_data;
    365   struct timespec audio_tstamp;
    366   struct timespec driver_tstamp;
    367   __u32 audio_tstamp_accuracy;
    368   unsigned char reserved[52 - 2 * sizeof(struct timespec)];
    369 };
    370 struct snd_pcm_mmap_status {
    371   snd_pcm_state_t state;
    372   int pad1;
    373   snd_pcm_uframes_t hw_ptr;
    374   struct timespec tstamp;
    375   snd_pcm_state_t suspended_state;
    376   struct timespec audio_tstamp;
    377 };
    378 struct snd_pcm_mmap_control {
    379   snd_pcm_uframes_t appl_ptr;
    380   snd_pcm_uframes_t avail_min;
    381 };
    382 #define SNDRV_PCM_SYNC_PTR_HWSYNC (1 << 0)
    383 #define SNDRV_PCM_SYNC_PTR_APPL (1 << 1)
    384 #define SNDRV_PCM_SYNC_PTR_AVAIL_MIN (1 << 2)
    385 struct snd_pcm_sync_ptr {
    386   unsigned int flags;
    387   union {
    388     struct snd_pcm_mmap_status status;
    389     unsigned char reserved[64];
    390   } s;
    391   union {
    392     struct snd_pcm_mmap_control control;
    393     unsigned char reserved[64];
    394   } c;
    395 };
    396 struct snd_xferi {
    397   snd_pcm_sframes_t result;
    398   void __user * buf;
    399   snd_pcm_uframes_t frames;
    400 };
    401 struct snd_xfern {
    402   snd_pcm_sframes_t result;
    403   void __user * __user * bufs;
    404   snd_pcm_uframes_t frames;
    405 };
    406 enum {
    407   SNDRV_PCM_TSTAMP_TYPE_GETTIMEOFDAY = 0,
    408   SNDRV_PCM_TSTAMP_TYPE_MONOTONIC,
    409   SNDRV_PCM_TSTAMP_TYPE_MONOTONIC_RAW,
    410   SNDRV_PCM_TSTAMP_TYPE_LAST = SNDRV_PCM_TSTAMP_TYPE_MONOTONIC_RAW,
    411 };
    412 enum {
    413   SNDRV_CHMAP_UNKNOWN = 0,
    414   SNDRV_CHMAP_NA,
    415   SNDRV_CHMAP_MONO,
    416   SNDRV_CHMAP_FL,
    417   SNDRV_CHMAP_FR,
    418   SNDRV_CHMAP_RL,
    419   SNDRV_CHMAP_RR,
    420   SNDRV_CHMAP_FC,
    421   SNDRV_CHMAP_LFE,
    422   SNDRV_CHMAP_SL,
    423   SNDRV_CHMAP_SR,
    424   SNDRV_CHMAP_RC,
    425   SNDRV_CHMAP_FLC,
    426   SNDRV_CHMAP_FRC,
    427   SNDRV_CHMAP_RLC,
    428   SNDRV_CHMAP_RRC,
    429   SNDRV_CHMAP_FLW,
    430   SNDRV_CHMAP_FRW,
    431   SNDRV_CHMAP_FLH,
    432   SNDRV_CHMAP_FCH,
    433   SNDRV_CHMAP_FRH,
    434   SNDRV_CHMAP_TC,
    435   SNDRV_CHMAP_TFL,
    436   SNDRV_CHMAP_TFR,
    437   SNDRV_CHMAP_TFC,
    438   SNDRV_CHMAP_TRL,
    439   SNDRV_CHMAP_TRR,
    440   SNDRV_CHMAP_TRC,
    441   SNDRV_CHMAP_TFLC,
    442   SNDRV_CHMAP_TFRC,
    443   SNDRV_CHMAP_TSL,
    444   SNDRV_CHMAP_TSR,
    445   SNDRV_CHMAP_LLFE,
    446   SNDRV_CHMAP_RLFE,
    447   SNDRV_CHMAP_BC,
    448   SNDRV_CHMAP_BLC,
    449   SNDRV_CHMAP_BRC,
    450   SNDRV_CHMAP_LAST = SNDRV_CHMAP_BRC,
    451 };
    452 #define SNDRV_CHMAP_POSITION_MASK 0xffff
    453 #define SNDRV_CHMAP_PHASE_INVERSE (0x01 << 16)
    454 #define SNDRV_CHMAP_DRIVER_SPEC (0x02 << 16)
    455 #define SNDRV_PCM_IOCTL_PVERSION _IOR('A', 0x00, int)
    456 #define SNDRV_PCM_IOCTL_INFO _IOR('A', 0x01, struct snd_pcm_info)
    457 #define SNDRV_PCM_IOCTL_TSTAMP _IOW('A', 0x02, int)
    458 #define SNDRV_PCM_IOCTL_TTSTAMP _IOW('A', 0x03, int)
    459 #define SNDRV_PCM_IOCTL_USER_PVERSION _IOW('A', 0x04, int)
    460 #define SNDRV_PCM_IOCTL_HW_REFINE _IOWR('A', 0x10, struct snd_pcm_hw_params)
    461 #define SNDRV_PCM_IOCTL_HW_PARAMS _IOWR('A', 0x11, struct snd_pcm_hw_params)
    462 #define SNDRV_PCM_IOCTL_HW_FREE _IO('A', 0x12)
    463 #define SNDRV_PCM_IOCTL_SW_PARAMS _IOWR('A', 0x13, struct snd_pcm_sw_params)
    464 #define SNDRV_PCM_IOCTL_STATUS _IOR('A', 0x20, struct snd_pcm_status)
    465 #define SNDRV_PCM_IOCTL_DELAY _IOR('A', 0x21, snd_pcm_sframes_t)
    466 #define SNDRV_PCM_IOCTL_HWSYNC _IO('A', 0x22)
    467 #define SNDRV_PCM_IOCTL_SYNC_PTR _IOWR('A', 0x23, struct snd_pcm_sync_ptr)
    468 #define SNDRV_PCM_IOCTL_STATUS_EXT _IOWR('A', 0x24, struct snd_pcm_status)
    469 #define SNDRV_PCM_IOCTL_CHANNEL_INFO _IOR('A', 0x32, struct snd_pcm_channel_info)
    470 #define SNDRV_PCM_IOCTL_PREPARE _IO('A', 0x40)
    471 #define SNDRV_PCM_IOCTL_RESET _IO('A', 0x41)
    472 #define SNDRV_PCM_IOCTL_START _IO('A', 0x42)
    473 #define SNDRV_PCM_IOCTL_DROP _IO('A', 0x43)
    474 #define SNDRV_PCM_IOCTL_DRAIN _IO('A', 0x44)
    475 #define SNDRV_PCM_IOCTL_PAUSE _IOW('A', 0x45, int)
    476 #define SNDRV_PCM_IOCTL_REWIND _IOW('A', 0x46, snd_pcm_uframes_t)
    477 #define SNDRV_PCM_IOCTL_RESUME _IO('A', 0x47)
    478 #define SNDRV_PCM_IOCTL_XRUN _IO('A', 0x48)
    479 #define SNDRV_PCM_IOCTL_FORWARD _IOW('A', 0x49, snd_pcm_uframes_t)
    480 #define SNDRV_PCM_IOCTL_WRITEI_FRAMES _IOW('A', 0x50, struct snd_xferi)
    481 #define SNDRV_PCM_IOCTL_READI_FRAMES _IOR('A', 0x51, struct snd_xferi)
    482 #define SNDRV_PCM_IOCTL_WRITEN_FRAMES _IOW('A', 0x52, struct snd_xfern)
    483 #define SNDRV_PCM_IOCTL_READN_FRAMES _IOR('A', 0x53, struct snd_xfern)
    484 #define SNDRV_PCM_IOCTL_LINK _IOW('A', 0x60, int)
    485 #define SNDRV_PCM_IOCTL_UNLINK _IO('A', 0x61)
    486 #define SNDRV_RAWMIDI_VERSION SNDRV_PROTOCOL_VERSION(2, 0, 0)
    487 enum {
    488   SNDRV_RAWMIDI_STREAM_OUTPUT = 0,
    489   SNDRV_RAWMIDI_STREAM_INPUT,
    490   SNDRV_RAWMIDI_STREAM_LAST = SNDRV_RAWMIDI_STREAM_INPUT,
    491 };
    492 #define SNDRV_RAWMIDI_INFO_OUTPUT 0x00000001
    493 #define SNDRV_RAWMIDI_INFO_INPUT 0x00000002
    494 #define SNDRV_RAWMIDI_INFO_DUPLEX 0x00000004
    495 struct snd_rawmidi_info {
    496   unsigned int device;
    497   unsigned int subdevice;
    498   int stream;
    499   int card;
    500   unsigned int flags;
    501   unsigned char id[64];
    502   unsigned char name[80];
    503   unsigned char subname[32];
    504   unsigned int subdevices_count;
    505   unsigned int subdevices_avail;
    506   unsigned char reserved[64];
    507 };
    508 struct snd_rawmidi_params {
    509   int stream;
    510   size_t buffer_size;
    511   size_t avail_min;
    512   unsigned int no_active_sensing : 1;
    513   unsigned char reserved[16];
    514 };
    515 struct snd_rawmidi_status {
    516   int stream;
    517   struct timespec tstamp;
    518   size_t avail;
    519   size_t xruns;
    520   unsigned char reserved[16];
    521 };
    522 #define SNDRV_RAWMIDI_IOCTL_PVERSION _IOR('W', 0x00, int)
    523 #define SNDRV_RAWMIDI_IOCTL_INFO _IOR('W', 0x01, struct snd_rawmidi_info)
    524 #define SNDRV_RAWMIDI_IOCTL_PARAMS _IOWR('W', 0x10, struct snd_rawmidi_params)
    525 #define SNDRV_RAWMIDI_IOCTL_STATUS _IOWR('W', 0x20, struct snd_rawmidi_status)
    526 #define SNDRV_RAWMIDI_IOCTL_DROP _IOW('W', 0x30, int)
    527 #define SNDRV_RAWMIDI_IOCTL_DRAIN _IOW('W', 0x31, int)
    528 #define SNDRV_TIMER_VERSION SNDRV_PROTOCOL_VERSION(2, 0, 6)
    529 enum {
    530   SNDRV_TIMER_CLASS_NONE = - 1,
    531   SNDRV_TIMER_CLASS_SLAVE = 0,
    532   SNDRV_TIMER_CLASS_GLOBAL,
    533   SNDRV_TIMER_CLASS_CARD,
    534   SNDRV_TIMER_CLASS_PCM,
    535   SNDRV_TIMER_CLASS_LAST = SNDRV_TIMER_CLASS_PCM,
    536 };
    537 enum {
    538   SNDRV_TIMER_SCLASS_NONE = 0,
    539   SNDRV_TIMER_SCLASS_APPLICATION,
    540   SNDRV_TIMER_SCLASS_SEQUENCER,
    541   SNDRV_TIMER_SCLASS_OSS_SEQUENCER,
    542   SNDRV_TIMER_SCLASS_LAST = SNDRV_TIMER_SCLASS_OSS_SEQUENCER,
    543 };
    544 #define SNDRV_TIMER_GLOBAL_SYSTEM 0
    545 #define SNDRV_TIMER_GLOBAL_RTC 1
    546 #define SNDRV_TIMER_GLOBAL_HPET 2
    547 #define SNDRV_TIMER_GLOBAL_HRTIMER 3
    548 #define SNDRV_TIMER_FLG_SLAVE (1 << 0)
    549 struct snd_timer_id {
    550   int dev_class;
    551   int dev_sclass;
    552   int card;
    553   int device;
    554   int subdevice;
    555 };
    556 struct snd_timer_ginfo {
    557   struct snd_timer_id tid;
    558   unsigned int flags;
    559   int card;
    560   unsigned char id[64];
    561   unsigned char name[80];
    562   unsigned long reserved0;
    563   unsigned long resolution;
    564   unsigned long resolution_min;
    565   unsigned long resolution_max;
    566   unsigned int clients;
    567   unsigned char reserved[32];
    568 };
    569 struct snd_timer_gparams {
    570   struct snd_timer_id tid;
    571   unsigned long period_num;
    572   unsigned long period_den;
    573   unsigned char reserved[32];
    574 };
    575 struct snd_timer_gstatus {
    576   struct snd_timer_id tid;
    577   unsigned long resolution;
    578   unsigned long resolution_num;
    579   unsigned long resolution_den;
    580   unsigned char reserved[32];
    581 };
    582 struct snd_timer_select {
    583   struct snd_timer_id id;
    584   unsigned char reserved[32];
    585 };
    586 struct snd_timer_info {
    587   unsigned int flags;
    588   int card;
    589   unsigned char id[64];
    590   unsigned char name[80];
    591   unsigned long reserved0;
    592   unsigned long resolution;
    593   unsigned char reserved[64];
    594 };
    595 #define SNDRV_TIMER_PSFLG_AUTO (1 << 0)
    596 #define SNDRV_TIMER_PSFLG_EXCLUSIVE (1 << 1)
    597 #define SNDRV_TIMER_PSFLG_EARLY_EVENT (1 << 2)
    598 struct snd_timer_params {
    599   unsigned int flags;
    600   unsigned int ticks;
    601   unsigned int queue_size;
    602   unsigned int reserved0;
    603   unsigned int filter;
    604   unsigned char reserved[60];
    605 };
    606 struct snd_timer_status {
    607   struct timespec tstamp;
    608   unsigned int resolution;
    609   unsigned int lost;
    610   unsigned int overrun;
    611   unsigned int queue;
    612   unsigned char reserved[64];
    613 };
    614 #define SNDRV_TIMER_IOCTL_PVERSION _IOR('T', 0x00, int)
    615 #define SNDRV_TIMER_IOCTL_NEXT_DEVICE _IOWR('T', 0x01, struct snd_timer_id)
    616 #define SNDRV_TIMER_IOCTL_TREAD _IOW('T', 0x02, int)
    617 #define SNDRV_TIMER_IOCTL_GINFO _IOWR('T', 0x03, struct snd_timer_ginfo)
    618 #define SNDRV_TIMER_IOCTL_GPARAMS _IOW('T', 0x04, struct snd_timer_gparams)
    619 #define SNDRV_TIMER_IOCTL_GSTATUS _IOWR('T', 0x05, struct snd_timer_gstatus)
    620 #define SNDRV_TIMER_IOCTL_SELECT _IOW('T', 0x10, struct snd_timer_select)
    621 #define SNDRV_TIMER_IOCTL_INFO _IOR('T', 0x11, struct snd_timer_info)
    622 #define SNDRV_TIMER_IOCTL_PARAMS _IOW('T', 0x12, struct snd_timer_params)
    623 #define SNDRV_TIMER_IOCTL_STATUS _IOR('T', 0x14, struct snd_timer_status)
    624 #define SNDRV_TIMER_IOCTL_START _IO('T', 0xa0)
    625 #define SNDRV_TIMER_IOCTL_STOP _IO('T', 0xa1)
    626 #define SNDRV_TIMER_IOCTL_CONTINUE _IO('T', 0xa2)
    627 #define SNDRV_TIMER_IOCTL_PAUSE _IO('T', 0xa3)
    628 struct snd_timer_read {
    629   unsigned int resolution;
    630   unsigned int ticks;
    631 };
    632 enum {
    633   SNDRV_TIMER_EVENT_RESOLUTION = 0,
    634   SNDRV_TIMER_EVENT_TICK,
    635   SNDRV_TIMER_EVENT_START,
    636   SNDRV_TIMER_EVENT_STOP,
    637   SNDRV_TIMER_EVENT_CONTINUE,
    638   SNDRV_TIMER_EVENT_PAUSE,
    639   SNDRV_TIMER_EVENT_EARLY,
    640   SNDRV_TIMER_EVENT_SUSPEND,
    641   SNDRV_TIMER_EVENT_RESUME,
    642   SNDRV_TIMER_EVENT_MSTART = SNDRV_TIMER_EVENT_START + 10,
    643   SNDRV_TIMER_EVENT_MSTOP = SNDRV_TIMER_EVENT_STOP + 10,
    644   SNDRV_TIMER_EVENT_MCONTINUE = SNDRV_TIMER_EVENT_CONTINUE + 10,
    645   SNDRV_TIMER_EVENT_MPAUSE = SNDRV_TIMER_EVENT_PAUSE + 10,
    646   SNDRV_TIMER_EVENT_MSUSPEND = SNDRV_TIMER_EVENT_SUSPEND + 10,
    647   SNDRV_TIMER_EVENT_MRESUME = SNDRV_TIMER_EVENT_RESUME + 10,
    648 };
    649 struct snd_timer_tread {
    650   int event;
    651   struct timespec tstamp;
    652   unsigned int val;
    653 };
    654 #define SNDRV_CTL_VERSION SNDRV_PROTOCOL_VERSION(2, 0, 7)
    655 struct snd_ctl_card_info {
    656   int card;
    657   int pad;
    658   unsigned char id[16];
    659   unsigned char driver[16];
    660   unsigned char name[32];
    661   unsigned char longname[80];
    662   unsigned char reserved_[16];
    663   unsigned char mixername[80];
    664   unsigned char components[128];
    665 };
    666 typedef int __bitwise snd_ctl_elem_type_t;
    667 #define SNDRV_CTL_ELEM_TYPE_NONE ((__force snd_ctl_elem_type_t) 0)
    668 #define SNDRV_CTL_ELEM_TYPE_BOOLEAN ((__force snd_ctl_elem_type_t) 1)
    669 #define SNDRV_CTL_ELEM_TYPE_INTEGER ((__force snd_ctl_elem_type_t) 2)
    670 #define SNDRV_CTL_ELEM_TYPE_ENUMERATED ((__force snd_ctl_elem_type_t) 3)
    671 #define SNDRV_CTL_ELEM_TYPE_BYTES ((__force snd_ctl_elem_type_t) 4)
    672 #define SNDRV_CTL_ELEM_TYPE_IEC958 ((__force snd_ctl_elem_type_t) 5)
    673 #define SNDRV_CTL_ELEM_TYPE_INTEGER64 ((__force snd_ctl_elem_type_t) 6)
    674 #define SNDRV_CTL_ELEM_TYPE_LAST SNDRV_CTL_ELEM_TYPE_INTEGER64
    675 typedef int __bitwise snd_ctl_elem_iface_t;
    676 #define SNDRV_CTL_ELEM_IFACE_CARD ((__force snd_ctl_elem_iface_t) 0)
    677 #define SNDRV_CTL_ELEM_IFACE_HWDEP ((__force snd_ctl_elem_iface_t) 1)
    678 #define SNDRV_CTL_ELEM_IFACE_MIXER ((__force snd_ctl_elem_iface_t) 2)
    679 #define SNDRV_CTL_ELEM_IFACE_PCM ((__force snd_ctl_elem_iface_t) 3)
    680 #define SNDRV_CTL_ELEM_IFACE_RAWMIDI ((__force snd_ctl_elem_iface_t) 4)
    681 #define SNDRV_CTL_ELEM_IFACE_TIMER ((__force snd_ctl_elem_iface_t) 5)
    682 #define SNDRV_CTL_ELEM_IFACE_SEQUENCER ((__force snd_ctl_elem_iface_t) 6)
    683 #define SNDRV_CTL_ELEM_IFACE_LAST SNDRV_CTL_ELEM_IFACE_SEQUENCER
    684 #define SNDRV_CTL_ELEM_ACCESS_READ (1 << 0)
    685 #define SNDRV_CTL_ELEM_ACCESS_WRITE (1 << 1)
    686 #define SNDRV_CTL_ELEM_ACCESS_READWRITE (SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_WRITE)
    687 #define SNDRV_CTL_ELEM_ACCESS_VOLATILE (1 << 2)
    688 #define SNDRV_CTL_ELEM_ACCESS_TIMESTAMP (1 << 3)
    689 #define SNDRV_CTL_ELEM_ACCESS_TLV_READ (1 << 4)
    690 #define SNDRV_CTL_ELEM_ACCESS_TLV_WRITE (1 << 5)
    691 #define SNDRV_CTL_ELEM_ACCESS_TLV_READWRITE (SNDRV_CTL_ELEM_ACCESS_TLV_READ | SNDRV_CTL_ELEM_ACCESS_TLV_WRITE)
    692 #define SNDRV_CTL_ELEM_ACCESS_TLV_COMMAND (1 << 6)
    693 #define SNDRV_CTL_ELEM_ACCESS_INACTIVE (1 << 8)
    694 #define SNDRV_CTL_ELEM_ACCESS_LOCK (1 << 9)
    695 #define SNDRV_CTL_ELEM_ACCESS_OWNER (1 << 10)
    696 #define SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK (1 << 28)
    697 #define SNDRV_CTL_ELEM_ACCESS_USER (1 << 29)
    698 #define SNDRV_CTL_POWER_D0 0x0000
    699 #define SNDRV_CTL_POWER_D1 0x0100
    700 #define SNDRV_CTL_POWER_D2 0x0200
    701 #define SNDRV_CTL_POWER_D3 0x0300
    702 #define SNDRV_CTL_POWER_D3hot (SNDRV_CTL_POWER_D3 | 0x0000)
    703 #define SNDRV_CTL_POWER_D3cold (SNDRV_CTL_POWER_D3 | 0x0001)
    704 #define SNDRV_CTL_ELEM_ID_NAME_MAXLEN 44
    705 struct snd_ctl_elem_id {
    706   unsigned int numid;
    707   snd_ctl_elem_iface_t iface;
    708   unsigned int device;
    709   unsigned int subdevice;
    710   unsigned char name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
    711   unsigned int index;
    712 };
    713 struct snd_ctl_elem_list {
    714   unsigned int offset;
    715   unsigned int space;
    716   unsigned int used;
    717   unsigned int count;
    718   struct snd_ctl_elem_id __user * pids;
    719   unsigned char reserved[50];
    720 };
    721 struct snd_ctl_elem_info {
    722   struct snd_ctl_elem_id id;
    723   snd_ctl_elem_type_t type;
    724   unsigned int access;
    725   unsigned int count;
    726   __kernel_pid_t owner;
    727   union {
    728     struct {
    729       long min;
    730       long max;
    731       long step;
    732     } integer;
    733     struct {
    734       long long min;
    735       long long max;
    736       long long step;
    737     } integer64;
    738     struct {
    739       unsigned int items;
    740       unsigned int item;
    741       char name[64];
    742       __u64 names_ptr;
    743       unsigned int names_length;
    744     } enumerated;
    745     unsigned char reserved[128];
    746   } value;
    747   union {
    748     unsigned short d[4];
    749     unsigned short * d_ptr;
    750   } dimen;
    751   unsigned char reserved[64 - 4 * sizeof(unsigned short)];
    752 };
    753 struct snd_ctl_elem_value {
    754   struct snd_ctl_elem_id id;
    755   unsigned int indirect : 1;
    756   union {
    757     union {
    758       long value[128];
    759       long * value_ptr;
    760     } integer;
    761     union {
    762       long long value[64];
    763       long long * value_ptr;
    764     } integer64;
    765     union {
    766       unsigned int item[128];
    767       unsigned int * item_ptr;
    768     } enumerated;
    769     union {
    770       unsigned char data[512];
    771       unsigned char * data_ptr;
    772     } bytes;
    773     struct snd_aes_iec958 iec958;
    774   } value;
    775   struct timespec tstamp;
    776   unsigned char reserved[128 - sizeof(struct timespec)];
    777 };
    778 struct snd_ctl_tlv {
    779   unsigned int numid;
    780   unsigned int length;
    781   unsigned int tlv[0];
    782 };
    783 #define SNDRV_CTL_IOCTL_PVERSION _IOR('U', 0x00, int)
    784 #define SNDRV_CTL_IOCTL_CARD_INFO _IOR('U', 0x01, struct snd_ctl_card_info)
    785 #define SNDRV_CTL_IOCTL_ELEM_LIST _IOWR('U', 0x10, struct snd_ctl_elem_list)
    786 #define SNDRV_CTL_IOCTL_ELEM_INFO _IOWR('U', 0x11, struct snd_ctl_elem_info)
    787 #define SNDRV_CTL_IOCTL_ELEM_READ _IOWR('U', 0x12, struct snd_ctl_elem_value)
    788 #define SNDRV_CTL_IOCTL_ELEM_WRITE _IOWR('U', 0x13, struct snd_ctl_elem_value)
    789 #define SNDRV_CTL_IOCTL_ELEM_LOCK _IOW('U', 0x14, struct snd_ctl_elem_id)
    790 #define SNDRV_CTL_IOCTL_ELEM_UNLOCK _IOW('U', 0x15, struct snd_ctl_elem_id)
    791 #define SNDRV_CTL_IOCTL_SUBSCRIBE_EVENTS _IOWR('U', 0x16, int)
    792 #define SNDRV_CTL_IOCTL_ELEM_ADD _IOWR('U', 0x17, struct snd_ctl_elem_info)
    793 #define SNDRV_CTL_IOCTL_ELEM_REPLACE _IOWR('U', 0x18, struct snd_ctl_elem_info)
    794 #define SNDRV_CTL_IOCTL_ELEM_REMOVE _IOWR('U', 0x19, struct snd_ctl_elem_id)
    795 #define SNDRV_CTL_IOCTL_TLV_READ _IOWR('U', 0x1a, struct snd_ctl_tlv)
    796 #define SNDRV_CTL_IOCTL_TLV_WRITE _IOWR('U', 0x1b, struct snd_ctl_tlv)
    797 #define SNDRV_CTL_IOCTL_TLV_COMMAND _IOWR('U', 0x1c, struct snd_ctl_tlv)
    798 #define SNDRV_CTL_IOCTL_HWDEP_NEXT_DEVICE _IOWR('U', 0x20, int)
    799 #define SNDRV_CTL_IOCTL_HWDEP_INFO _IOR('U', 0x21, struct snd_hwdep_info)
    800 #define SNDRV_CTL_IOCTL_PCM_NEXT_DEVICE _IOR('U', 0x30, int)
    801 #define SNDRV_CTL_IOCTL_PCM_INFO _IOWR('U', 0x31, struct snd_pcm_info)
    802 #define SNDRV_CTL_IOCTL_PCM_PREFER_SUBDEVICE _IOW('U', 0x32, int)
    803 #define SNDRV_CTL_IOCTL_RAWMIDI_NEXT_DEVICE _IOWR('U', 0x40, int)
    804 #define SNDRV_CTL_IOCTL_RAWMIDI_INFO _IOWR('U', 0x41, struct snd_rawmidi_info)
    805 #define SNDRV_CTL_IOCTL_RAWMIDI_PREFER_SUBDEVICE _IOW('U', 0x42, int)
    806 #define SNDRV_CTL_IOCTL_POWER _IOWR('U', 0xd0, int)
    807 #define SNDRV_CTL_IOCTL_POWER_STATE _IOR('U', 0xd1, int)
    808 enum sndrv_ctl_event_type {
    809   SNDRV_CTL_EVENT_ELEM = 0,
    810   SNDRV_CTL_EVENT_LAST = SNDRV_CTL_EVENT_ELEM,
    811 };
    812 #define SNDRV_CTL_EVENT_MASK_VALUE (1 << 0)
    813 #define SNDRV_CTL_EVENT_MASK_INFO (1 << 1)
    814 #define SNDRV_CTL_EVENT_MASK_ADD (1 << 2)
    815 #define SNDRV_CTL_EVENT_MASK_TLV (1 << 3)
    816 #define SNDRV_CTL_EVENT_MASK_REMOVE (~0U)
    817 struct snd_ctl_event {
    818   int type;
    819   union {
    820     struct {
    821       unsigned int mask;
    822       struct snd_ctl_elem_id id;
    823     } elem;
    824     unsigned char data8[60];
    825   } data;
    826 };
    827 #define SNDRV_CTL_NAME_NONE ""
    828 #define SNDRV_CTL_NAME_PLAYBACK "Playback "
    829 #define SNDRV_CTL_NAME_CAPTURE "Capture "
    830 #define SNDRV_CTL_NAME_IEC958_NONE ""
    831 #define SNDRV_CTL_NAME_IEC958_SWITCH "Switch"
    832 #define SNDRV_CTL_NAME_IEC958_VOLUME "Volume"
    833 #define SNDRV_CTL_NAME_IEC958_DEFAULT "Default"
    834 #define SNDRV_CTL_NAME_IEC958_MASK "Mask"
    835 #define SNDRV_CTL_NAME_IEC958_CON_MASK "Con Mask"
    836 #define SNDRV_CTL_NAME_IEC958_PRO_MASK "Pro Mask"
    837 #define SNDRV_CTL_NAME_IEC958_PCM_STREAM "PCM Stream"
    838 #define SNDRV_CTL_NAME_IEC958(expl,direction,what) "IEC958 " expl SNDRV_CTL_NAME_ ##direction SNDRV_CTL_NAME_IEC958_ ##what
    839 #endif
    840