Implement serial_port_get_id() on Linux

native/src/serial_linux.c

@@ -9,7 +9,61 @@
 #include "serial.h"
 
 char *serial_port_get_id(struct sp_port *port) {
-	return port->name;
+	const char *name			= sp_get_port_name(port);
+	enum sp_transport transport = sp_get_port_transport(port);
+
+	int id_length = strlen(name);
+
+	switch (transport) {
+		case SP_TRANSPORT_USB: {
+			int vid = 0, pid = 0;
+			const char *serial = sp_get_port_usb_serial(port);
+			if (sp_get_port_usb_vid_pid(port, &vid, &pid) == SP_OK)
+				id_length += sizeof("#VID=xxxx#PID=xxxx") - 1;
+			if (serial != NULL)
+				id_length += sizeof("#SN=") - 1 + strlen(serial);
+
+			char *id = malloc(id_length + 1);
+			if (id == NULL)
+				return NULL;
+
+			if (vid != 0 && pid != 0) {
+				if (serial != NULL)
+					sprintf(id, "%s#VID=%04X#PID=%04X#SN=%s", name, vid, pid, serial);
+				else
+					sprintf(id, "%s#VID=%04X#PID=%04X", name, vid, pid);
+			} else {
+				if (serial != NULL)
+					sprintf(id, "%s#SN=%s", name, serial);
+				else
+					strcpy(id, name);
+			}
+
+			return id;
+		}
+
+		case SP_TRANSPORT_BLUETOOTH: {
+			const char *address = sp_get_port_bluetooth_address(port);
+			if (address != NULL)
+				id_length += sizeof("#ADDR=") - 1 + strlen(address);
+
+			char *id = malloc(id_length + 1);
+			if (id == NULL)
+				return NULL;
+
+			if (address != NULL)
+				sprintf(id, "%s#ADDR=%s", name, address);
+			else
+				strcpy(id, name);
+
+			return id;
+		}
+
+		case SP_TRANSPORT_NATIVE:
+		default: {
+			return strdup(port->name);
+		}
+	}
 }
 
 #endif