command void* requestData( uint8_t* size );
command void storeData( void* data, uint8_t size, uint32_t seqno );
command uint32_t requestSeqno();
command void* requestData( uint8_t* size );
command void storeData( void* data, uint8_t size, uint32_t seqno );
command uint32_t requestSeqno();