a little program to test serial port communications

campcaster/var/serialtest/serialtest.cpp

@@ -0,0 +1,49 @@
+/**
+ *  testing the serial ports
+ *
+ *  compile with: g++ -I $CC_DIR/usr/include -L $CC_DIR/usr/lib -lserial \
+ *                    -o serialtest serialtest.cpp
+ *  run with: LD_LIBRARY_PATH=$CC_DIR/usr/lib ./serialtest in /dev/ttyS0
+ *        or: LD_LIBRARY_PATH=$CC_DIR/usr/lib ./serialtest out /dev/ttyUSB0
+ *  (etc)
+ */
+
+#include <SerialStream.h>
+#include <iostream>
+
+int main (int       argc,
+          char *    argv[])
+{
+    bool            in;
+    std::string     sn;
+    
+    if (argc > 2) {
+        if (argv[1] == "in") {
+            in = true;
+        } else {
+            in = false;
+        }
+        
+        sn = argv[2];
+    } else {
+        std::cerr << "Usage: setserial {in|out} devicename" << std::endl;
+        std::exit(1);
+    }
+
+    LibSerial::SerialStream     s(sn);
+
+    std::printf("Serial port %s is %s\n", sn.c_str(), s.bad() ? "bad" : "good");
+
+    std::string     str;
+    
+    do {
+        if (in) {
+            std::getline(std::cin, str, '\n');
+            s << str << std::endl;
+        } else {
+            std::getline(s, str, '\n');
+            std::cerr << "received: " << str << std::endl;
+        }
+    } while (true);
+}
+