Scott Baker to All (Orig: 11:11, Fri, Feb 24, 1995):

 SB>    In particular, I need the ASYNC_xxx constants (i.e. 
 SB>    Any help is greatly appreciated!

Hope this helps (straight from BSEDEV.H):

#define ASYNC_SETBAUDRATE                  0x0041
#define ASYNC_SETLINECTRL                  0x0042
#define ASYNC_TRANSMITIMM                  0x0044
#define ASYNC_SETBREAKOFF                  0x0045
#define ASYNC_SETMODEMCTRL                 0x0046
#define ASYNC_SETBREAKON                   0x004B
#define ASYNC_STOPTRANSMIT                 0x0047
#define ASYNC_STARTTRANSMIT                0x0048
#define ASYNC_SETDCBINFO                   0x0053
#define ASYNC_GETBAUDRATE                  0x0061
#define ASYNC_GETLINECTRL                  0x0062
#define ASYNC_GETCOMMSTATUS                0x0064
#define ASYNC_GETLINESTATUS                0x0065
#define ASYNC_GETMODEMOUTPUT               0x0066
#define ASYNC_GETMODEMINPUT                0x0067
#define ASYNC_GETINQUECOUNT                0x0068
#define ASYNC_GETOUTQUECOUNT               0x0069
#define ASYNC_GETCOMMERROR                 0x006D
#define ASYNC_GETCOMMEVENT                 0x0072
#define ASYNC_GETDCBINFO                   0x0073

typedef struct _LINECONTROL     /* lnctl */
        {
        BYTE bDataBits;
        BYTE bParity;
        BYTE bStopBits;
        BYTE fTransBreak;
        } LINECONTROL;
typedef LINECONTROL *PLINECONTROL;

/* MODEMSTATUS.fbModemOn, ASYNC_GETMODEMOUTPUT */
#define DTR_ON                             0x01
#define RTS_ON                             0x02

/* MODEMSTATUS.fbModemOff */
#define DTR_OFF                            0xFE
#define RTS_OFF                            0xFD

typedef struct _MODEMSTATUS     /* mdmst */
        {
        BYTE fbModemOn;
        BYTE fbModemOff;
        } MODEMSTATUS;
typedef MODEMSTATUS *PMODEMSTATUS;

typedef struct _DCBINFO         /* dcbinf */
        {
        USHORT usWriteTimeout;
        USHORT usReadTimeout;
        BYTE   fbCtlHndShake;
        BYTE   fbFlowReplace;
        BYTE   fbTimeout;
        BYTE   bErrorReplacementChar;
        BYTE   bBreakReplacementChar;
        BYTE   bXONChar;
        BYTE   bXOFFChar;
        } DCBINFO, *PDCBINFO;

GeeCee/2
Team OS/2 New England
gchambers{at}maine.com

... Topsham, ME 43 57.0'N 69 57.0'W 
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