altosui: Open serial device at 'new' time. Prohibit duplicate opens.

With the per-serial UI, there's never a reason to create a serial
device without opening it right away. This eliminates the bug caused
by not opening the serial device for telemetry reception.

Serial devices can now be opened only once; this eliminates errors
when trying to reflash or configure devices while receiving telemetry.

Signed-off-by: Keith Packard <keithp@keithp.com>

1 files changed, 3 insertions, 2 deletions

diff --git a/ao-tools/altosui/AltosTelemetryReader.java b/ao-tools/altosui/AltosTelemetryReader.java
index 0b5509eb..ff02c722 100644
--- a/ao-tools/altosui/AltosTelemetryReader.java
+++ b/ao-tools/altosui/AltosTelemetryReader.java
@@ -50,9 +50,10 @@ class AltosTelemetryReader extends AltosFlightReader {
 		serial.set_callsign(callsign);
 	}
 
-	public AltosTelemetryReader (AltosDevice in_device) throws FileNotFoundException, IOException {
+	public AltosTelemetryReader (AltosDevice in_device)
+		throws FileNotFoundException, AltosSerialInUseException, IOException {
 		device = in_device;
-		serial = new AltosSerial();
+		serial = new AltosSerial(device);
 		log = new AltosLog(serial);
 		name = device.getPath();