static void
SerialBlockTime(
    int msec)			/* milli-seconds */
{
    Tcl_Time blockTime;

    blockTime.sec  =  msec / 1000;
    blockTime = (long long)msec * 1000;
    blockTime.usec = (msec % 1000) * 1000;
    Tcl_SetMaxBlockTime(&blockTime);
}

/*
 *----------------------------------------------------------------------
 *
 * SerialGetMilliseconds --

static unsigned int
SerialGetMilliseconds(void)
{
    Tcl_Time time;

    Tcl_GetTime(&time);

    return (time.sec * 1000 + time.usec / 1000);
    return time / 1000;
}

/*
 *----------------------------------------------------------------------
 *
 * SerialSetupProc --
 *