| RTOS Feature | Usage | |--------------|-------| | Mutex | Protect object list during concurrent host access | | Message queue | Deliver USB events to MTP task | | Semaphore | Block waiting for MTP response when acting as initiator |
uint32_t mtp_get_num_storages(void); uint32_t mtp_get_storage_id(uint8_t idx); const char* mtp_get_storage_description(uint32_t storage_id); Implement object operations: Media Transfer Protocol Porting Kit
void mtp_send_event(uint16_t event_code, uint32_t param1); Implement storage enumeration: | RTOS Feature | Usage | |--------------|-------| |
| Layer | Description | |-------|-------------| | | Handles USB endpoint read/write, interrupt events, and session management. | | Command Processor | Parses MTP operation codes, validates parameters, invokes handlers. | | Object Manager | Interfaces with file system (FAT, exFAT, SPIFFS) to create/read/delete/rename objects. | | Property Provider | Maps standard MTP properties (e.g., StorageID , ObjectFormat ) to device metadata. | | | Property Provider | Maps standard MTP properties (e