1 #ifndef USB_AUDIO_H 2 #define USB_AUDIO_H 3 4 // (Partial) USB Device Class Definition for Audio Devices 5 // R1: Release 1.0 March 18, 1998 6 // R2: Release 2.0 May 31, 2006 7 8 #include <SupportDefs.h> 9 10 #define USB_AUDIO_DEVICE_CLASS 0x01 11 #define USB_AUDIO_CLASS_VERSION 0x0100 12 13 enum { 14 USB_AUDIO_INTERFACE_AUDIO_CLASS = 0x01 15 }; 16 17 enum { // Audio Interface Subclasses 18 USB_AUDIO_INTERFACE_UNDEFINED_SUBCLASS = 0x00, 19 USB_AUDIO_INTERFACE_AUDIOCONTROL_SUBCLASS = 0x01, 20 USB_AUDIO_INTERFACE_AUDIOSTREAMING_SUBCLASS, // 21 USB_AUDIO_INTERFACE_MIDISTREAMING_SUBCLASS // 22 }; 23 24 enum { // Audio Interface Protocol Codes 25 USB_AUDIO_PROTOCOL_UNDEFINED = 0x00 26 }; 27 28 enum { // Audio Interface Protocol Codes 29 USB_AUDIO_CS_UNDEFINED = 0x20, 30 USB_AUDIO_CS_DEVICE = 0x21, 31 USB_AUDIO_CS_CONFIGURATION = 0x22, 32 USB_AUDIO_CS_STRING = 0x23, 33 USB_AUDIO_CS_INTERFACE = 0x24, 34 USB_AUDIO_CS_ENDPOINT = 0x25 35 }; 36 37 38 enum { // Audio Class-Specific AudioControl Interface descriptor subtypes 39 USB_AUDIO_AC_DESCRIPTOR_UNDEFINED = 0x00, 40 USB_AUDIO_AC_HEADER = 0x01, 41 USB_AUDIO_AC_INPUT_TERMINAL = 0x02, 42 USB_AUDIO_AC_OUTPUT_TERMINAL = 0x03, 43 USB_AUDIO_AC_MIXER_UNIT = 0x04, 44 USB_AUDIO_AC_SELECTOR_UNIT = 0x05, 45 USB_AUDIO_AC_FEATURE_UNIT = 0x06, 46 USB_AUDIO_AC_PROCESSING_UNIT = 0x07, 47 USB_AUDIO_AC_EXTENSION_UNIT = 0x08, 48 USB_AUDIO_AC_EFFECT_UNIT_R2 = 0x07, 49 USB_AUDIO_AC_PROCESSING_UNIT_R2 = 0x08, 50 USB_AUDIO_AC_EXTENSION_UNIT_R2 = 0x09, 51 USB_AUDIO_AC_CLOCK_SOURCE_R2 = 0x0A, 52 USB_AUDIO_AC_CLOCK_SELECTOR_R2 = 0x0B, 53 USB_AUDIO_AC_CLOCK_MULTIPLIER_R2 = 0x0C, 54 USB_AUDIO_AC_SAMPLE_RATE_CONVERTER_R2 = 0x0D 55 }; 56 57 58 // Class Specific Audio Control Interface Header 59 // R1: Table 4-2 p.37 / R2: Table 4-5 p.48 60 typedef struct { 61 uint8 length; 62 uint8 descriptor_type; // USB_AUDIO_CS_INTERFACE 63 uint8 descriptor_subtype; // USB_AUDIO_AC_HEADER 64 uint16 bcd_release_no; 65 union { 66 struct { 67 uint16 total_length; 68 uint8 in_collection; 69 uint8 interface_numbers[1]; 70 } _PACKED r1; 71 72 struct { 73 uint8 function_category; 74 uint16 total_length; 75 uint8 bm_controls; 76 } _PACKED r2; 77 }; 78 } _PACKED usb_audiocontrol_header_descriptor; 79 80 81 // Input Terminal Descriptor 82 // R1: Table 4-3 p.39 / R2: Table 4-9, page 53 83 typedef struct { 84 uint8 length; 85 uint8 descriptor_type; // USB_AUDIO_CS_INTERFACE 86 uint8 descriptor_subtype; // USB_AUDIO_AC_INPUT_TERMINAL 87 uint8 terminal_id; 88 uint16 terminal_type; 89 uint8 assoc_terminal; 90 union { 91 struct { 92 uint8 num_channels; 93 uint8 channel_config; 94 uint8 channel_names; 95 uint8 terminal; 96 } _PACKED r1; 97 98 struct { 99 uint8 clock_source_id; 100 uint8 num_channels; 101 uint32 channel_config; 102 uint8 channel_names; 103 uint16 bm_controls; 104 uint8 terminal; 105 } _PACKED r2; 106 }; 107 } _PACKED usb_audio_input_terminal_descriptor; 108 109 110 // Output Terminal Descriptor 111 // R1: Table 4-4 p.40 / R2: Table 4-10, page 54 112 typedef struct { 113 uint8 length; 114 uint8 descriptor_type; // USB_AUDIO_CS_INTERFACE 115 uint8 descriptor_subtype; // USB_AUDIO_AC_OUTPUT_TERMINAL 116 uint8 terminal_id; 117 uint16 terminal_type; 118 uint8 assoc_terminal; 119 uint8 source_id; 120 union { 121 struct { 122 uint8 terminal; 123 } _PACKED r1; 124 125 struct { 126 uint8 clock_source_id; 127 uint16 bm_controls; 128 uint8 terminal; 129 } _PACKED r2; 130 }; 131 } _PACKED usb_audio_output_terminal_descriptor; 132 133 134 // pseudo-descriptor for a section corresponding to logical output channels 135 // used in mixer, processing and extension descriptions. 136 typedef struct { 137 uint8 num_output_pins; // number of mixer output pins 138 uint16 channel_config; // location of logical channels 139 uint8 channel_names; // id of name string of first logical channel 140 } _PACKED usb_audio_output_channels_descriptor_r1; 141 142 typedef struct { 143 uint8 num_output_pins; // number of mixer output pins 144 uint32 channel_config; // location of logical channels 145 uint8 channel_names; // id of name string of first logical channel 146 } _PACKED usb_audio_output_channels_descriptor; 147 148 149 // Mixer Unit Descriptor 150 // R1: Table 4-5 p.41 / R2: Table 4-11, page 57 151 typedef struct { 152 uint8 length; 153 uint8 descriptor_type; // USB_AUDIO_CS_INTERFACE 154 uint8 descriptor_subtype; // USB_AUDIO_AC_MIXER_UNIT 155 uint8 unit_id; 156 uint8 num_input_pins; 157 uint8 input_pins[1]; 158 // use usb_audio_output_channels_descriptor to parse the rest 159 } _PACKED usb_audio_mixer_unit_descriptor; 160 161 162 // Selector Unit Descriptor 163 // R1: Table 4-6 p.43 / R2: Table 4-12, page 58 164 typedef struct { 165 uint8 length; 166 uint8 descriptor_type; // USB_AUDIO_CS_INTERFACE 167 uint8 descriptor_subtype; // USB_AUDIO_AC_SELECTOR_UNIT 168 uint8 unit_id; 169 uint8 num_input_pins; 170 uint8 input_pins[1]; 171 // uint8 selector_string; 172 } _PACKED usb_audio_selector_unit_descriptor; 173 174 175 // Feature Unit Descriptor 176 // R1: Table 4-7 p.43 / R2: Table 4-13, page 59 177 typedef struct { 178 uint8 length; 179 uint8 descriptor_type; // USB_AUDIO_CS_INTERFACE 180 uint8 descriptor_subtype; // USB_AUDIO_AC_FEATURE_UNIT 181 uint8 unit_id; 182 uint8 source_id; 183 union { 184 struct { 185 uint8 control_size; 186 uint8 bma_controls[1]; 187 // uint8 feature_string; 188 } _PACKED r1; 189 190 struct { 191 uint32 bma_controls[1]; 192 // uint8 feature_string; 193 } _PACKED r2; 194 }; 195 } _PACKED usb_audio_feature_unit_descriptor; 196 197 198 // Processing Unit Descriptor 199 // R1: Table 4-8 p.45 / R2: Table 4-20, page 66 200 typedef struct { 201 uint8 length; 202 uint8 descriptor_type; // USB_AUDIO_CS_INTERFACE 203 uint8 descriptor_subtype; // USB_AUDIO_AC_PROCESSING_UNIT 204 uint8 unit_id; 205 uint16 process_type; 206 uint8 num_input_pins; 207 uint8 input_pins[1]; 208 // use usb_audio_output_channels_descriptor to parse the rest 209 // TODO - the bmControl!!!! 210 } _PACKED usb_audio_processing_unit_descriptor; 211 212 // Extension Unit Descriptor 213 // R1: Table 4-15, p. 56 / R2: Table 4-24, p.73 214 typedef struct { 215 uint8 length; 216 uint8 descriptor_type; // USB_AUDIO_CS_INTERFACE 217 uint8 descriptor_subtype; // USB_AUDIO_AC_EXTENSION_UNIT 218 uint8 unit_id; 219 uint16 extension_code; 220 uint8 num_input_pins; 221 uint8 input_pins[1]; 222 // use usb_audio_output_channels_descriptor to parse the rest 223 } _PACKED usb_audio_extension_unit_descriptor; 224 225 226 enum { // Audio Class-Specific AudioStreaming Interface descriptor subtypes 227 USB_AUDIO_AS_DESCRIPTOR_UNDEFINED = 0x00, 228 USB_AUDIO_AS_GENERAL = 0x01, 229 USB_AUDIO_AS_FORMAT_TYPE = 0x02, 230 USB_AUDIO_AS_FORMAT_SPECIFIC = 0x03 231 }; 232 233 // Class Specific Audio Streaming Interface Descriptor 234 // R1: Table 4-19 p.60 / R2: Table 4-27 p.76 235 typedef struct { 236 uint8 length; 237 uint8 descriptor_type; // USB_AUDIO_CS_INTERFACE 238 uint8 descriptor_subtype; // USB_AUDIO_AS_GENERAL 239 uint8 terminal_link; 240 union { 241 struct { 242 uint8 delay; 243 uint16 format_tag; 244 } _PACKED r1; 245 246 struct { 247 uint8 bm_controls; 248 uint8 format_type; 249 uint32 bm_formats; 250 uint8 num_output_pins; 251 uint32 channel_config; 252 uint8 channel_names; 253 } _PACKED r2; 254 }; 255 } _PACKED usb_audio_streaming_interface_descriptor; 256 257 258 // Class-specific As Isochronous Audio Data Endpoint descriptor 259 // R1: Table 4-21, p. 62 / R2: Table 4-34, page 87 260 typedef struct { 261 uint8 length; 262 uint8 descriptor_type; // USB_AUDIO_CS_ENDPOINT 263 uint8 descriptor_subtype; // USB_AUDIO_EP_GENERAL 264 uint8 attributes; 265 uint8 lock_delay_units; 266 uint16 lock_delay; 267 } _PACKED usb_audio_streaming_endpoint_descriptor; 268 269 270 // Sampling Rate are represented as 3-byte integer 271 typedef struct { 272 uint8 bytes[3]; 273 } _PACKED usb_audio_sampling_freq; 274 275 276 // Format Type I/II/III Descriptors 277 // T1: Table 2-1, p.10 etc. 278 // T2: Table 2-2, p.15 etc. 279 typedef struct { 280 uint8 length; 281 uint8 descriptor_type; // USB_AUDIO_CS_INTERFACE 282 uint8 descriptor_subtype; // USB_AUDIO_AS_FORMAT_TYPE 283 uint8 format_type; // USB_AUDIO_FORMAT_TYPE_I/II/III 284 union { 285 struct { 286 uint8 nr_channels; 287 uint8 subframe_size; 288 uint8 bit_resolution; 289 uint8 sam_freq_type; 290 usb_audio_sampling_freq sam_freqs[1]; 291 } _PACKED typeI; 292 293 struct { 294 uint16 max_bit_rate; 295 uint16 samples_per_frame; 296 uint8 sam_freq_type; 297 usb_audio_sampling_freq sam_freqs[1]; 298 } _PACKED typeII; 299 300 struct { 301 uint8 nr_channels; 302 uint8 subframe_size; 303 uint8 bit_resolution; 304 uint8 sam_freq_type; 305 usb_audio_sampling_freq sam_freqs[1]; 306 } _PACKED typeIII; 307 }; 308 } _PACKED usb_audio_format_descriptor; 309 310 311 enum { // Processing Unit Process Types (for USB_AUDIO_AC_PROCESSING_UNIT) 312 USB_AUDIO_UPDOWNMIX_PROCESS = 0x01, 313 USB_AUDIO_DOLBY_PROLOGIC_PROCESS, 314 USB_AUDIO_3D_STEREO_EXTENDER_PROCESS, 315 USB_AUDIO_REVERBERATION_PROCESS, 316 USB_AUDIO_CHORUS_PROCESS, 317 USB_AUDIO_DYN_RANGE_COMP_PROCESS 318 }; 319 320 enum { // Audio Class-Specific Request Codes 321 USB_AUDIO_SET_CUR = 0x01, 322 USB_AUDIO_GET_CUR = 0x81, 323 USB_AUDIO_SET_MIN = 0x02, 324 USB_AUDIO_GET_MIN = 0x82, 325 USB_AUDIO_SET_MAX = 0x03, 326 USB_AUDIO_GET_MAX = 0x83, 327 USB_AUDIO_SET_RES = 0x04, 328 USB_AUDIO_GET_RES = 0x84, 329 USB_AUDIO_SET_MEM = 0x05, 330 USB_AUDIO_GET_MEM = 0x85, 331 USB_AUDIO_GET_STATUS = 0xFF 332 }; 333 334 enum { // Terminal Control Selectors 335 USB_AUDIO_COPY_PROTECT_CONTROL = 0x01 336 }; 337 338 // R2: A.17.5 Mixer Unit Control Selectors 339 enum { 340 USB_AUDIO_MU_CONTROL_UNDEFINED = 0x00, 341 USB_AUDIO_MIXER_CONTROL = 0x01, 342 USB_AUDIO_CLUSTER_CONTROL = 0x02, 343 USB_AUDIO_UNDERFLOW_CONTROL = 0x03, 344 USB_AUDIO_OVERFLOW_CONTROL = 0x04, 345 USB_AUDIO_LATENCY_CONTROL = 0x05 346 }; 347 348 /* A.10.2 Feature Unit Control Selectors */ 349 enum { 350 USB_AUDIO_AC_FU_CONTROL_UNDEFINED = 0x00, 351 USB_AUDIO_MUTE_CONTROL = 0x01, 352 USB_AUDIO_VOLUME_CONTROL = 0x02, 353 USB_AUDIO_BASS_CONTROL = 0x03, 354 USB_AUDIO_MID_CONTROL = 0x04, 355 USB_AUDIO_TREBLE_CONTROL = 0x05, 356 USB_AUDIO_GRAPHIC_EQUALIZER_CONTROL = 0x06, 357 USB_AUDIO_AUTOMATIC_GAIN_CONTROL = 0x07, 358 USB_AUDIO_DELAY_CONTROL = 0x08, 359 USB_AUDIO_BASS_BOOST_CONTROL = 0x09, 360 USB_AUDIO_LOUDNESS_CONTROL = 0x0A 361 }; 362 363 /* A.10.3.1 Up/Down-mix Processing Unit Control Selectors */ 364 #define USB_AUDIO_UD_CONTROL_UNDEFINED 0x00 365 #define USB_AUDIO_UD_ENABLED_CONTROL 0x01 366 #define USB_AUDIO_UD_MODE_SELECT_CONTROL 0x02 367 368 /* A.10.3.2 Dolby Prologic(tm) Processing Unit Control Selectors */ 369 #define USB_AUDIO_DP_CONTROL_UNDEFINED 0x00 370 #define USB_AUDIO_DP_ENABLE_CONTROL 0x01 371 #define USB_AUDIO_DP_MODE_SELECT_CONTROL 0x02 372 373 /* A.10.3.3 3D Stereo Extender Processing Unit Control Selectors */ 374 #define USB_AUDIO_3D_CONTROL_UNDEFINED 0x00 375 #define USB_AUDIO_3D_ENABLED_CONTROL 0x01 376 #define USB_AUDIO_3D_SPACIOUSNESS_CONTROL 0x03 377 378 /* A.10.3.4 Reverberation Processing Unit Control Selectors */ 379 #define USB_AUDIO_RV_CONTROL_UNDEFINED 0x00 380 #define USB_AUDIO_RV_ENABLE_CONTROL 0x01 381 #define USB_AUDIO_RV_REVERB_LEVEL_CONTROL 0x02 382 #define USB_AUDIO_RV_REVERB_TIME_CONTROL 0x03 383 #define USB_AUDIO_RV_REVERB_FEEDBACK_CONTROL 0x04 384 385 /* A.10.3.5 Chorus Processing Unit Control Selectors */ 386 #define USB_AUDIO_CH_CONTROL_UNDEFINED 0x00 387 #define USB_AUDIO_CH_ENABLE_CONTROL 0x01 388 #define USB_AUDIO_CHORUS_LEVEL_CONTROL 0x02 389 #define USB_AUDIO_CHORUS_RATE_CONTROL 0x03 390 #define USB_AUDIO_CHORUS_DETH_CONTROL 0x04 391 392 /* A.10.3.6 Dynamic Range Compressor Processing Unit Control Selectors */ 393 #define USB_AUDIO_DR_CONTROL_UNDEFINED 0x00 394 #define USB_AUDIO_DR_ENABLE_CONTROL 0x01 395 #define USB_AUDIO_COMPRESSION_RATE_CONTROL 0x02 396 #define USB_AUDIO_MAXAMPL_CONTROL 0x03 397 #define USB_AUDIO_THRESHOLD_CONTROL 0x04 398 #define USB_AUDIO_ATTACK_TIME 0x05 399 #define USB_AUDIO_RELEASE_TIME 0x06 400 401 /* A.10.4 Extension Unit Control Selectors */ 402 #define USB_AUDIO_XU_CONTROL_UNDEFINED 0x00 403 #define USB_AUDIO_XU_ENABLE_CONTROL 0x01 404 405 /* A.10.5 Endpoint Control Selectors */ 406 enum { 407 USB_AUDIO_EP_CONTROL_UNDEFINED = 0x00, 408 USB_AUDIO_SAMPLING_FREQ_CONTROL = 0x01, 409 USB_AUDIO_PITCH_CONTROL = 0x02 410 }; 411 412 /* 413 typedef struct 414 { 415 uint8 length; 416 uint8 type; 417 uint8 subtype; 418 uint8 unit_id; 419 uint8 source_id; 420 uint8 control_size; 421 uint16 controls[0]; 422 } _PACKED usb_audio_feature_unit_descriptor; 423 424 typedef struct { 425 uint8 length; 426 uint8 type; 427 uint8 subtype; 428 uint8 format_type; 429 uint8 num_channels; 430 uint8 subframe_size; 431 uint8 bit_resolution; 432 uint8 sample_freq_type; 433 uint8 sample_freq[3]; // [0] + [1] << 8 + [2] << 16 434 // if sample_freq_type != 1, 435 // (sample_freq_type - 1) x uint8 sample_freq[3] follows... 436 } _PACKED usb_audio_format_type_descriptor; 437 */ 438 // bitset for feature control bitmap 439 // Table 4-7, page 44, bmaControls field 440 enum { 441 BMA_CTL_MUTE_R1 = 0X0001, 442 BMA_CTL_VOLUME_R1 = 0X0002, 443 BMA_CTL_BASS_R1 = 0X0004, 444 BMA_CTL_MID_R1 = 0X0008, 445 BMA_CTL_TREBLE_R1 = 0X0010, 446 BMA_CTL_GRAPHEQ_R1 = 0X0020, 447 BMA_CTL_AUTOGAIN_R1 = 0X0040, 448 BMA_CTL_DELAY_R1 = 0X0080, 449 BMA_CTL_BASSBOOST_R1 = 0X0100, 450 BMA_CTL_LOUDNESS_R1 = 0X0200, 451 // Release 2.0 452 BMA_CTL_MUTE = 0X00000003, 453 BMA_CTL_VOLUME = 0X0000000C, 454 BMA_CTL_BASS = 0X00000030, 455 BMA_CTL_MID = 0X000000C0, 456 BMA_CTL_TREBLE = 0X00000300, 457 BMA_CTL_GRAPHEQ = 0X00000C00, 458 BMA_CTL_AUTOGAIN = 0X00003000, 459 BMA_CTL_DELAY = 0X0000C000, 460 BMA_CTL_BASSBOOST = 0X00030000, 461 BMA_CTL_LOUDNESS = 0X000C0000, 462 BMA_CTL_INPUTGAIN = 0X00300000, 463 BMA_CTL_INPUTGAINPAD = 0X00C00000, 464 BMA_CTL_PHASEINVERTER = 0X03000000, 465 BMA_CTL_UNDERFLOW = 0X0C000000, 466 BMA_CTL_OVERFLOW = 0X30000000 467 }; 468 469 // Table A-4, page 30 470 // Format Type Codes 471 enum { 472 USB_AUDIO_FORMAT_TYPE_UNDEFINED = 0x00, 473 USB_AUDIO_FORMAT_TYPE_I = 0x01, 474 USB_AUDIO_FORMAT_TYPE_II = 0x02, 475 USB_AUDIO_FORMAT_TYPE_III = 0x03 476 }; 477 478 // Table A-1, page 29, wFormatTag 479 // Audio Data Format Type I codes 480 enum { 481 USB_AUDIO_FORMAT_TYPE_I_UNDEFINED = 0x0000, 482 USB_AUDIO_FORMAT_PCM = 0x0001, 483 USB_AUDIO_FORMAT_PCM8 = 0x0002, 484 USB_AUDIO_FORMAT_IEEE_FLOAT = 0x0003, 485 USB_AUDIO_FORMAT_ALAW = 0x0004, 486 USB_AUDIO_FORMAT_MULAW = 0x0005 487 }; 488 489 490 enum { 491 // USB Terminal Types 492 USB_AUDIO_UNDEFINED_USB_IO = 0x100, 493 USB_AUDIO_STREAMING_USB_IO = 0x101, 494 USB_AUDIO_VENDOR_USB_IO = 0x1ff, 495 // Input Terminal Types 496 USB_AUDIO_UNDEFINED_IN = 0x200, 497 USB_AUDIO_MICROPHONE_IN = 0x201, 498 USB_AUDIO_DESKTOPMIC_IN = 0x202, 499 USB_AUDIO_PERSONALMIC_IN = 0x203, 500 USB_AUDIO_OMNI_MIC_IN = 0x204, 501 USB_AUDIO_MICS_ARRAY_IN = 0x205, 502 USB_AUDIO_PROC_MICS_ARRAY_IN = 0x206, 503 // Output Terminal Types 504 USB_AUDIO_UNDEFINED_OUT = 0x300, 505 USB_AUDIO_SPEAKER_OUT = 0x301, 506 USB_AUDIO_HEAD_PHONES_OUT = 0x302, 507 USB_AUDIO_HMD_AUDIO_OUT = 0x303, 508 USB_AUDIO_DESKTOP_SPEAKER = 0x304, 509 USB_AUDIO_ROOM_SPEAKER = 0x305, 510 USB_AUDIO_COMM_SPEAKER = 0x306, 511 USB_AUDIO_LFE_SPEAKER = 0x307, 512 // Bi-directional Terminal Types 513 USB_AUDIO_UNDEFINED_IO = 0x400, 514 USB_AUDIO_HANDSET_IO = 0x401, 515 USB_AUDIO_HEADSET_IO = 0x402, 516 USB_AUDIO_SPEAKER_PHONE_IO = 0x403, 517 USB_AUDIO_SPEAKER_PHONEES_IO = 0x404, 518 USB_AUDIO_SPEAKER_PHONEEC_IO = 0x405, 519 // Telephony Terminal Types 520 USB_AUDIO_UNDEF_TELEPHONY_IO = 0x500, 521 USB_AUDIO_PHONE_LINE_IO = 0x501, 522 USB_AUDIO_TELEPHONE_IO = 0x502, 523 USB_AUDIO_DOWNLINE_PHONE_IO = 0x503, 524 // External Terminal Types 525 USB_AUDIO_UNDEFINEDEXT_IO = 0x600, 526 USB_AUDIO_ANALOG_CONNECTOR_IO = 0x601, 527 USB_AUDIO_DAINTERFACE_IO = 0x602, 528 USB_AUDIO_LINE_CONNECTOR_IO = 0x603, 529 USB_AUDIO_LEGACY_CONNECTOR_IO = 0x604, 530 USB_AUDIO_SPDIF_INTERFACE_IO = 0x605, 531 USB_AUDIO_DA1394_STREAM_IO = 0x606, 532 USB_AUDIO_DV1394_STREAMSOUND_IO = 0x607, 533 USB_AUDIO_ADAT_LIGHTPIPE_IO = 0x608, 534 USB_AUDIO_TDIF_IO = 0x609, 535 USB_AUDIO_MADI_IO = 0x60a, 536 // Embedded Terminal Types 537 USB_AUDIO_UNDEF_EMBEDDED_IO = 0x700, 538 USB_AUDIO_LC_NOISE_SOURCE_OUT = 0x701, 539 USB_AUDIO_EQUALIZATION_NOISE_OUT = 0x702, 540 USB_AUDIO_CDPLAYER_IN = 0x703, 541 USB_AUDIO_DAT_IO = 0x704, 542 USB_AUDIO_DCC_IO = 0x705, 543 USB_AUDIO_MINI_DISK_IO = 0x706, 544 USB_AUDIO_ANALOG_TAPE_IO = 0x707, 545 USB_AUDIO_PHONOGRAPH_IN = 0x708, 546 USB_AUDIO_VCR_AUDIO_IN = 0x709, 547 USB_AUDIO_VIDEO_DISC_AUDIO_IN = 0x70a, 548 USB_AUDIO_DVD_AUDIO_IN = 0x70b, 549 USB_AUDIO_TV_TUNER_AUDIO_IN = 0x70c, 550 USB_AUDIO_SAT_RECEIVER_AUDIO_IN = 0x70d, 551 USB_AUDIO_CABLE_TUNER_AUDIO_IN = 0x70e, 552 USB_AUDIO_DSS_AUDIO_IN = 0x70f, 553 USB_AUDIO_RADIO_RECEIVER_IN = 0x710, 554 USB_AUDIO_RADIO_TRANSMITTER_IN = 0x711, 555 USB_AUDIO_MULTI_TRACK_RECORDER_IO = 0x712, 556 USB_AUDIO_SYNTHESIZER_IO = 0x713, 557 USB_AUDIO_PIANO_IO = 0x714, 558 USB_AUDIO_GUITAR_IO = 0x715, 559 USB_AUDIO_DRUMS_IO = 0x716, 560 USB_AUDIO_INSTRUMENT_IO = 0x717 561 }; 562 563 564 #endif // USB_AUDIO_H 565