Updates for linux

And testing my new USB-equipped board (currently virtual serial).

CMakeLists.txt

@@ -26,8 +26,10 @@ endif()
 
 add_library(serialport SHARED IMPORTED)
 # You can define two import-locations: one for debug and one for release.
-set_target_properties(serialport PROPERTIES IMPORTED_LOCATION /usr/local/Cellar/libserialport/0.1.1/lib/libserialport.dylib)
-target_include_directories(serialport INTERFACE /usr/local/Cellar/libserialport/0.1.1/include)
+#set_target_properties(serialport PROPERTIES IMPORTED_LOCATION /usr/local/Cellar/libserialport/0.1.1/lib/libserialport.dylib)
+set_target_properties(serialport PROPERTIES IMPORTED_LOCATION /usr/lib/x86_64-linux-gnu/libserialport.so.0.1.0)
+#target_include_directories(serialport INTERFACE /usr/local/Cellar/libserialport/0.1.1/include)
+target_include_directories(serialport INTERFACE /usr/include)
 
 add_executable(serial_cpp main.cpp)
 target_link_libraries(serial_cpp serialport)

main.cpp

@@ -22,7 +22,9 @@ int main() {
     std::cout << "Searching for serial ports.\n";
     list_ports();
 
-    const char* desired_port = "/dev/cu.usbserial-AC01YB5P";
+    //const char* desired_port = "/dev/cu.usbserial-AC01YB5P";
+    //const char* desired_port = "/dev/ttyUSB0";
+    const char* desired_port = "/dev/ttyACM0";
     constexpr uint32_t baud_rate = 115200;
     constexpr uint32_t byte_buffer_size = 512;
     char byte_buffer[byte_buffer_size];
@@ -40,23 +42,44 @@ int main() {
                     std::cout << bytes_waiting << " bytes in the buffer: ";
                     int byte_num = 0;
                     byte_num = sp_nonblocking_read(port, byte_buffer, byte_buffer_size);
-                bool button_pressed = false;
+                    //bool button_pressed = false;
                     for (decltype(byte_num) i = 0; i < byte_num; ++i){
-                    if (byte_buffer[i] == '1') {
-                        button_pressed = true;
-                    }
+                        //if (byte_buffer[i] == '1') {
+                        //    button_pressed = true;
+                        //}
                         std::cout << byte_buffer[i];
                     }
+                    std::cout << '\n';
+                    /*
                     if (button_pressed) {
                         std::cout << "   the button is pressed!";
                     }
                     std::cout << std::endl;
+                    */
                 }
             }
             // Execution can never make it here, but I'll close the port on principle.
             sp_close(port);
         } else {
             std::cout << "Error opening serial device\n";
+            switch(error) {
+                case SP_ERR_ARG:
+                    std::cout << "Bad arguments\n";
+                    break;
+                case SP_ERR_FAIL:
+                    std::cout << "OS reported failure\n";
+                    std::cout << sp_last_error_code() << '\n';
+                    std::cout << sp_last_error_message() << '\n';
+                    break;
+                case SP_ERR_SUPP:
+                    std::cout << "Not supported\n";
+                    break;
+                case SP_ERR_MEM:
+                    std::cout << "OOM\n";
+                    break;
+                default:
+                    std::cout << "No idea\n";
+            }
         }
     } else {
         std::cout << "Error finding serial device\n";