FTP driver - driver info

        Entry:
          AX = 01FFh
          BX = handler returned by function 02h
        Return:
          CF set on error
            DH = error code (see below)
          CF clear if successful
            BX = version
            CH = network interface class (see below)
            DX = interface type (see below)
            CL = number
            DS:SI -> name
            AL = driver type
                01h basic
                02h extended
                FFh not installed

        Values for error code:

          01h invalid handle number
          02h no interfaces of the specified class found
          03h no interfaces of the specified type found
          04h no interfaces of the specified number found
          05h bad packet type
          06h interface does not support multicast messages
          07h this packet driver cannot terminate
          08h invalid receiver mode
          09h insufficient space
          0Ah type accessed but never released
          0Bh bad command
          0Ch packet could not be sent

        Values for Network Interface classes/types:

        Class 01h  Ethernet/IEEE 802.3
          01h 3COM 3C500/3C501
          02h 3COM 3C505
          03h MICOM-Interlan NI5010
          04h BICC Data Networks 4110
          05h BICC Data Networks 4117
          06h MICOM-Interlan NP600
          08h Ungermann-Bass PC-NIC
          09h Univation NC-516
          0Ah TRW PC-2000
          0Bh MICOM-Interlan NI5210
          0Ch 3COM 3C503
          0Dh 3COM 3C523
          0Eh Western Digital WD8003
          0Fh Spider Systems S4
        Class 02h  ProNET-10
          01h Proteon p1300
        Class 03h  IEEE 802.5/ProNet-4
          01h IBM Token-Ring Adapter
          02h Proteon p1340
          03h Proteon p1344
        Class 04h  Omninet
        Class 05h  Appletalk
        Class 06h  Serial Line
        Class 07h  StarLAN
        Class 08h  ARCnet
          01h Datapoint RIM