INT 13 - Enhanced Disk Drive Spec v3.0 - SEND PACKET COMMAND AX = 5001h DL = drive number ES:BX -> command packet (see #00284) Return: CF clear if successful AH = 00h CF set on error AH = error code Desc: send data to and from a serial packet-oriented device, such as IEEE1394 and USBsee Universal Serial Bus SeeAlso: AH=41h"INT 13 Extensions",AH=4Eh Format of Enhanced Disk Drive Spec v3.0 command packet: Offset Size Description (Table 00284) 00h WORD signature B055h 02h BYTE length of packet in bytes 03h BYTE reserved (0) 04h N BYTEs formatted packet data