Android:USB
Media Transfer Protocol
(Android:MTP로 들어올 수 있다)
Android MTP (Media Transfer Protocol).
Provides APIs that let you interact directly with connected cameras and other devices, using the PTP (Picture Transfer Protocol) subset of the MTP (Media Transfer Protocol) specification. Your application can receive notifications when devices are attached and removed, manage files and storage on those devices, and transfer files and metadata from the devices.
Picture Transfer Protocol
(Android:PTP로 들어올 수 있다)
Android PTP (Picture Transfer Protocol).