| S_usb_ac_interface_descriptor | A U D I O Specific Class-Specific AC Interface Descriptor |
| S_usb_as_interface_descriptor | Class-Specific AS Interface Descriptor |
| S_usb_configuration_descriptor | Usb Configuration Descriptor |
| S_usb_device_descriptor | Usb Device Descriptor |
| S_usb_endpoint_audio_descriptor | Usb Audio Endpoint Descriptor |
| S_usb_endpoint_audio_specific | Endpoint AUDIO Specific descriptor |
| S_usb_endpoint_descriptor | Usb Endpoint Descriptor |
| S_usb_feature_unit_descriptor | Class-Specific Feature Unit Descriptor |
| S_usb_format_type | Audio Format Type descriptor |
| S_usb_in_ter_descriptor | Class-Specific Input Terminal Descriptor |
| S_usb_interface_descriptor | Usb Interface Descriptor |
| S_usb_language_id | Usb Language Descriptor |
| S_usb_manufacturer_string_descriptor | |
| S_usb_out_ter_descriptor | Class-Specific Output Terminal Descriptor |
| S_usb_product_string_descriptor | |
| S_usb_serial_number | |
| S_usb_user_configuration_descriptor | |
| S_UsbRequest | Usb Request |
| st_audio_cmd | |
| Union16 | |
| Union32 |
1.5.3