char ACK(int fd);
int check_lx200_connection(int fd);
int getCommandSexa(int fd, double *value, const char *cmd);
int getCommandString(int fd, char *data, const char *cmd);
int getCommandInt(int fd, int *value, const char *cmd);
int getTrackFreq(int fd, double *value);
int getSiteLatitude(int fd, int *dd, int *mm);
int getSiteLongitude(int fd, int *ddd, int *mm);
int getCalendarDate(int fd, char *date);
int getSiteName(int fd, char *siteName, int siteNum);
int getHomeSearchStatus(int fd, int *status);
int getOTATemp(int fd, double *value);
int getTimeFormat(int fd, int *format);
int setCommandInt(int fd, int data, const char *cmd);
int setCommandXYZ(int fd, int x, int y, int z, const char *cmd);
int setStandardProcedure(int fd, const char *writeData);
int setSlewMode(int fd, int slewMode);
int setAlignmentMode(int fd, unsigned int alignMode);
int setObjectRA(int fd, double ra);
int setObjectDEC(int fd, double dec);
int setCalenderDate(int fd, int dd, int mm, int yy);
int setUTCOffset(int fd, double hours);
int setTrackFreq(int fd, double trackF);
int setSiteLongitude(int fd, double Long);
int setSiteLatitude(int fd, double Lat);
int setObjAz(int fd, double az);
int setObjAlt(int fd, double alt);
int setSiteName(int fd, char *siteName, int siteNum);
int setMaxSlewRate(int fd, int slewRate);
int setFocuserMotion(int fd, int motionType);
int setFocuserSpeedMode(int fd, int speedMode);
int setMinElevationLimit(int fd, int min);
int setMaxElevationLimit(int fd, int max);
int Slew(int fd);
int Sync(int fd, char *matchedObject);
int abortSlew(int fd);
int MoveTo(int fd, int direction);
int HaltMovement(int fd, int direction);
int selectTrackingMode(int fd, int trackMode);
int SendPulseCmd(int fd, int direction, uint32_t duration_msec);
int checkLX200Format(int fd);
int selectSite(int fd, int siteNum);
int selectCatalogObject(int fd, int catalog, int NNNN);
int selectSubCatalog(int fd, int catalog, int subCatalog);
int check_lx200_connection(int in_fd)
    if (in_fd <= 0)
        if (write(in_fd, ack, 1) < 0)
        tty_read(in_fd, MountAlign, 1, LX200_TIMEOUT, &nbytes_read);
char ACK(int fd)
    nbytes_write = write(fd, ack, 1);
    error_type = tty_read(fd, MountAlign, 1, LX200_TIMEOUT, &nbytes_read);
int getCommandSexa(int fd, double *value, const char *cmd)
    tcflush(fd, TCIFLUSH);
    if ((error_type = tty_write_string(fd, cmd, &nbytes_write)) != TTY_OK)
    error_type = tty_nread_section(fd, read_buffer,RB_MAX_LEN,  '#', LX200_TIMEOUT, &nbytes_read);
    tcflush(fd, TCIFLUSH);
    tcflush(fd, TCIFLUSH);
int getCommandInt(int fd, int *value, const char *cmd)
    tcflush(fd, TCIFLUSH);
    if ((error_type = tty_write_string(fd, cmd, &nbytes_write)) != TTY_OK)
    error_type = tty_nread_section(fd, read_buffer,RB_MAX_LEN, '#', LX200_TIMEOUT, &nbytes_read);
    tcflush(fd, TCIFLUSH);
int getCommandString(int fd, char *data, const char *cmd)
    if ((error_type = tty_write_string(fd, cmd, &nbytes_write)) != TTY_OK)
    error_type = tty_nread_section(fd, data, RB_MAX_LEN, '#', LX200_TIMEOUT, &nbytes_read);
    tcflush(fd, TCIFLUSH);
int isSlewComplete(int fd)
    if ((error_type = tty_write_string(fd, cmd, &nbytes_write)) != TTY_OK)
    error_type = tty_nread_section(fd, data, 8, '#', LX200_TIMEOUT, &nbytes_read);
    tcflush(fd, TCIOFLUSH);
int getCalendarDate(int fd, char *date)
    if ((error_type = getCommandString(fd, date, ":GC#")))
int getTimeFormat(int fd, int *format)
    if ((error_type = tty_write_string(fd, ":Gc#", &nbytes_write)) != TTY_OK)
    if ((error_type = tty_nread_section(fd, read_buffer, RB_MAX_LEN, '#', LX200_TIMEOUT, &nbytes_read)) != TTY_OK)
    tcflush(fd, TCIFLUSH);
int getSiteName(int fd, char *siteName, int siteNum)
            if ((error_type = tty_write_string(fd, ":GM#", &nbytes_write)) != TTY_OK)
            if ((error_type = tty_write_string(fd, ":GN#", &nbytes_write)) != TTY_OK)
            if ((error_type = tty_write_string(fd, ":GO#", &nbytes_write)) != TTY_OK)
            if ((error_type = tty_write_string(fd, ":GP#", &nbytes_write)) != TTY_OK)
    error_type = tty_nread_section(fd, siteName, RB_MAX_LEN, '#', LX200_TIMEOUT, &nbytes_read);
    tcflush(fd, TCIFLUSH);
int getSiteLatitude(int fd, int *dd, int *mm)
    tcflush(fd, TCIFLUSH);
    if ((error_type = tty_write_string(fd, ":Gt#", &nbytes_write)) != TTY_OK)
    error_type = tty_nread_section(fd, read_buffer, RB_MAX_LEN, '#', LX200_TIMEOUT, &nbytes_read);
    tcflush(fd, TCIFLUSH);
int getSiteLongitude(int fd, int *ddd, int *mm)
    if ((error_type = tty_write_string(fd, ":Gg#", &nbytes_write)) != TTY_OK)
    error_type = tty_nread_section(fd, read_buffer, RB_MAX_LEN, '#', LX200_TIMEOUT, &nbytes_read);
    tcflush(fd, TCIFLUSH);
int getTrackFreq(int fd, double *value)
    if ((error_type = tty_write_string(fd, ":GT#", &nbytes_write)) != TTY_OK)
    error_type = tty_nread_section(fd, read_buffer, RB_MAX_LEN, '#', LX200_TIMEOUT, &nbytes_read);
    tcflush(fd, TCIFLUSH);
int getHomeSearchStatus(int fd, int *status)
    if ((error_type = tty_write_string(fd, ":h?#", &nbytes_write)) != TTY_OK)
    error_type = tty_nread_section(fd, read_buffer, RB_MAX_LEN, '#', LX200_TIMEOUT, &nbytes_read);
    tcflush(fd, TCIFLUSH);
int getOTATemp(int fd, double *value)
    if ((error_type = tty_write_string(fd, ":fT#", &nbytes_write)) != TTY_OK)
    error_type = tty_nread_section(fd, read_buffer, RB_MAX_LEN, '#', LX200_TIMEOUT, &nbytes_read);
int setStandardProcedure(int fd, const char *data)
    tcflush(fd, TCIFLUSH);
    if ((error_type = tty_write_string(fd, data, &nbytes_write)) != TTY_OK)
    error_type = tty_read(fd, bool_return, 1, LX200_TIMEOUT, &nbytes_read);
    tcflush(fd, TCIFLUSH);
int setCommandInt(int fd, int data, const char *cmd)
    tcflush(fd, TCIFLUSH);
    if ((error_type = tty_write_string(fd, read_buffer, &nbytes_write)) != TTY_OK)
    tcflush(fd, TCIFLUSH);
int setMinElevationLimit(int fd, int min)
    return (setStandardProcedure(fd, read_buffer));
int setMaxElevationLimit(int fd, int max)
    return (setStandardProcedure(fd, read_buffer));
int setMaxSlewRate(int fd, int slewRate)
    return (setStandardProcedure(fd, read_buffer));
int setObjectRA(int fd, double ra)
    return (setStandardProcedure(fd, read_buffer));
int setObjectDEC(int fd, double dec)
    return (setStandardProcedure(fd, read_buffer));
int setCommandXYZ(int fd, int x, int y, int z, const char *cmd)
    return (setStandardProcedure(fd, read_buffer));
int setAlignmentMode(int fd, unsigned int alignMode)
            if ((error_type = tty_write_string(fd, ":AP#", &nbytes_write)) != TTY_OK)
            if ((error_type = tty_write_string(fd, ":AA#", &nbytes_write)) != TTY_OK)
            if ((error_type = tty_write_string(fd, ":AL#", &nbytes_write)) != TTY_OK)
    tcflush(fd, TCIFLUSH);
int setCalenderDate(int fd, int dd, int mm, int yy)
    tcflush(fd, TCIFLUSH);
    if ((error_type = tty_write_string(fd, read_buffer, &nbytes_write)) != TTY_OK)
    error_type = tty_nread_section(fd, read_buffer, RB_MAX_LEN, '#', LX200_TIMEOUT, &nbytes_read);
    tty_nread_section(fd, dummy_buffer, RB_MAX_LEN, '#', LX200_TIMEOUT, &nbytes_read);
    tcflush(fd, TCIFLUSH);
    tcflush(fd, TCIFLUSH);
int setUTCOffset(int fd, double hours)
    return (setStandardProcedure(fd, read_buffer));
int setSiteLongitude(int fd, double Long)
    return (setStandardProcedure(fd, read_buffer));
int setSiteLatitude(int fd, double Lat)
    return (setStandardProcedure(fd, read_buffer));
int setObjAz(int fd, double az)
    return (setStandardProcedure(fd, read_buffer));
int setObjAlt(int fd, double alt)
    return (setStandardProcedure(fd, read_buffer));
int setSiteName(int fd, char *siteName, int siteNum)
    return (setStandardProcedure(fd, read_buffer));
int setSlewMode(int fd, int slewMode)
            if ((error_type = tty_write_string(fd, ":RS#", &nbytes_write)) != TTY_OK)
            if ((error_type = tty_write_string(fd, ":RM#", &nbytes_write)) != TTY_OK)
            if ((error_type = tty_write_string(fd, ":RC#", &nbytes_write)) != TTY_OK)
            if ((error_type = tty_write_string(fd, ":RG#", &nbytes_write)) != TTY_OK)
    tcflush(fd, TCIFLUSH);
int setFocuserMotion(int fd, int motionType)
            if ((error_type = tty_write_string(fd, ":F+#", &nbytes_write)) != TTY_OK)
            if ((error_type = tty_write_string(fd, ":F-#", &nbytes_write)) != TTY_OK)
    tcflush(fd, TCIFLUSH);
int setFocuserSpeedMode(int fd, int speedMode)
            if ((error_type = tty_write_string(fd, ":FQ#", &nbytes_write)) != TTY_OK)
            if ((error_type = tty_write_string(fd, ":FS#", &nbytes_write)) != TTY_OK)
            if ((error_type = tty_write_string(fd, ":FF#", &nbytes_write)) != TTY_OK)
    tcflush(fd, TCIFLUSH);
int setGPSFocuserSpeed(int fd, int speed)
        if ((error_type = tty_write_string(fd, ":FQ#", &nbytes_write)) != TTY_OK)
        tcflush(fd, TCIFLUSH);
    if ((error_type = tty_write_string(fd, speed_str, &nbytes_write)) != TTY_OK)
    tcflush(fd, TCIFLUSH);
int setTrackFreq(int fd, double trackF)
    return (setStandardProcedure(fd, read_buffer));
int setPreciseTrackFreq(int fd, double trackF)
	return (setStandardProcedure(fd, read_buffer));
int Slew(int fd)
    if ((error_type = tty_write_string(fd, ":MS#", &nbytes_write)) != TTY_OK)
    error_type = tty_read(fd, slewNum, 1, LX200_TIMEOUT, &nbytes_read);
    tcflush(fd, TCIFLUSH);
int MoveTo(int fd, int direction)
            tty_write_string(fd, ":Mn#", &nbytes_write);
            tty_write_string(fd, ":Mw#", &nbytes_write);
            tty_write_string(fd, ":Me#", &nbytes_write);
            tty_write_string(fd, ":Ms#", &nbytes_write);
    tcflush(fd, TCIFLUSH);
int SendPulseCmd(int fd, int direction, int duration_msec)
    tty_write_string(fd, cmd, &nbytes_write);
    tcflush(fd, TCIFLUSH);
int HaltMovement(int fd, int direction)
            if ((error_type = tty_write_string(fd, ":Qn#", &nbytes_write)) != TTY_OK)
            if ((error_type = tty_write_string(fd, ":Qw#", &nbytes_write)) != TTY_OK)
            if ((error_type = tty_write_string(fd, ":Qe#", &nbytes_write)) != TTY_OK)
            if ((error_type = tty_write_string(fd, ":Qs#", &nbytes_write)) != TTY_OK)
            if ((error_type = tty_write_string(fd, ":Q#", &nbytes_write)) != TTY_OK)
    tcflush(fd, TCIFLUSH);
int abortSlew(int fd)
    if ((error_type = tty_write_string(fd, ":Q#", &nbytes_write)) != TTY_OK)
    tcflush(fd, TCIFLUSH);
int Sync(int fd, char *matchedObject)
    if ((error_type = tty_write_string(fd, ":CM#", &nbytes_write)) != TTY_OK)
    error_type = tty_nread_section(fd, matchedObject, RB_MAX_LEN, '#', LX200_TIMEOUT, &nbytes_read);
    tcflush(fd, TCIFLUSH);
int selectSite(int fd, int siteNum)
            if ((error_type = tty_write_string(fd, ":W0#", &nbytes_write)) != TTY_OK) //azwing index starts at 0 not 1
            if ((error_type = tty_write_string(fd, ":W1#", &nbytes_write)) != TTY_OK) //azwing index starts at 0 not 1
            if ((error_type = tty_write_string(fd, ":W2#", &nbytes_write)) != TTY_OK) //azwing index starts at 0 not 1
            if ((error_type = tty_write_string(fd, ":W3#", &nbytes_write)) != TTY_OK) //azwing index starts at 0 not 1
    tcflush(fd, TCIFLUSH);
int selectCatalogObject(int fd, int catalog, int NNNN)
    if ((error_type = tty_write_string(fd, read_buffer, &nbytes_write)) != TTY_OK)
    tcflush(fd, TCIFLUSH);
int selectSubCatalog(int fd, int catalog, int subCatalog)
    return (setStandardProcedure(fd, read_buffer));
int checkLX200Format(int fd)
    tcflush(fd, TCIFLUSH);
    if ((error_type = tty_write_string(fd, ":GR#", &nbytes_write)) != TTY_OK)
    error_type = tty_nread_section(fd, read_buffer, RB_MAX_LEN, '#', LX200_TIMEOUT, &nbytes_read);
        if ((error_type = tty_write_string(fd, ":U#", &nbytes_write)) != TTY_OK)
    tcflush(fd, TCIFLUSH);
    if ((error_type = tty_write_string(fd, ":GR#", &nbytes_write)) != TTY_OK)
    error_type = tty_nread_section(fd, read_buffer, RB_MAX_LEN, '#', LX200_TIMEOUT, &nbytes_read);
    tcflush(fd, TCIFLUSH);
int selectTrackingMode(int fd, int trackMode)
            if ((error_type = tty_write_string(fd, ":TQ#", &nbytes_write)) != TTY_OK)
            if ((error_type = tty_write_string(fd, ":TS#", &nbytes_write)) != TTY_OK)
            if ((error_type = tty_write_string(fd, ":TL#", &nbytes_write)) != TTY_OK)
            if ((error_type = tty_write_string(fd, ":TM#", &nbytes_write)) != TTY_OK)
    tcflush(fd, TCIFLUSH);