Int 6B Fn 15  - Npc Ncsi Extended Serial I/o - Set/retrieve Virtual Circu  [S]

   AH = 15h
   AL = virtual circuit number
   CL = direction (00h get, nonzero set)
   ES:BX -> buffer for/containing virtual circuit config (see #3402)

Return: ES:BX buffer filled

Note:  this function is also supported by TelAPI

See Also: AH=13h"NCSI",AH=14h"NCSI"

Format of virtual circuit configuration:
Offset Size    Description (Table 3402)
 00h   WORD    buffer length
 02h   WORD    port ID
 04h   WORD    receive rate
 06h   WORD    receive word length
 08h   WORD    receive stop bits
 0Ah   WORD    receive parity
 0Ch   WORD    transmit rate
 0Eh   WORD    transmit word length
 10h   WORD    transmit stop bits
 12h   WORD    transmit parity
 14h   WORD    DTR
 16h   WORD    RTS