_VCOMM_Map_Ring0DCB_To_Win32

include vcomm.inc

mov     edx, Win32_DCB
mov     eax, Ring0_DCB
VxDcall _VCOMM_Map_Ring0DCB_To_Win32

The port driver functions PortGetCommConfig and PortSetCommConfig are called from Win32 and use a Win32-style DCB, not a Ring0 DCB. These port driver functions call _VCOMM_Map_Ring0DCB_To_Win32 to convert the DCBs.

• No return value.

Win32_DCB

Address of a Win32-style DCB structure.

Ring0_DCB

Address of a Ring0 (or Win16-style) DCB structure.