42#if defined(__linux__) || defined(__FreeBSD__)
void RS232_cputs(int, const char *)
void RS232_CloseComport(int)
void RS232_disableRTS(int)
int RS232_IsDSREnabled(int)
int RS232_OpenComport(int, int, const char *, int)
void RS232_flushRXTX(int)
int RS232_GetPortnr(const char *)
void RS232_enableBREAK(int)
void RS232_disableBREAK(int)
int RS232_SendBuf(int, unsigned char *, int)
int RS232_IsCTSEnabled(int)
int RS232_PollComport(int, unsigned char *, int)
int RS232_IsRINGEnabled(int)
int RS232_SendByte(int, unsigned char)
int RS232_IsDCDEnabled(int)
void RS232_enableRTS(int)
void RS232_disableDTR(int)
void RS232_enableDTR(int)