Samsung Accessory SDK 2.6.4
API Reference

Packages 
Package Description
com.samsung.android.sdk  
com.samsung.android.sdk.accessory
Provides the classes necessary to create the Accessory application and the classes an application uses to communicate with its peer application.
com.samsung.android.sdk.accessoryfiletransfer
Provides the classes necessary to create the Accessory FileTransfer application and the classes an application uses to transfer a file to peer application.