Media Transfer Protocol Porting Kit (2025)

bool mtp_usb_send(const uint8_t* data, uint32_t len); bool mtp_usb_recv(uint8_t* buf, uint32_t timeout_ms); void mtp_usb_attach(void); // Notify host of device availability For USB interrupt endpoint (MTP events):

| 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 | Media Transfer Protocol Porting Kit

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: bool mtp_usb_send(const uint8_t* data

void mtp_send_event(uint16_t event_code, uint32_t param1); Implement storage enumeration: bool mtp_usb_recv(uint8_t* buf