From e76b9cc32bbcc5176d9bdd6f8d79778024627382 Mon Sep 17 00:00:00 2001
From: Keith Packard <keithp@keithp.com>
Date: Wed, 28 Jul 2010 12:24:53 -0700
Subject: altosui: Catch errors opening USB devices. Limit list to relevant
 devices

Avoids a segfault when failing to open a device. Limit listed telemetry
devices to just TeleDongle units.

Signed-off-by: Keith Packard <keithp@keithp.com>
---
 ao-tools/altosui/AltosDeviceDialog.java | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'ao-tools/altosui/AltosDeviceDialog.java')

diff --git a/ao-tools/altosui/AltosDeviceDialog.java b/ao-tools/altosui/AltosDeviceDialog.java
index eb70877c..08921c3d 100644
--- a/ao-tools/altosui/AltosDeviceDialog.java
+++ b/ao-tools/altosui/AltosDeviceDialog.java
@@ -41,6 +41,10 @@ public class AltosDeviceDialog {
 							       devices[0]);
 			return (altos_device) o;
 		} else {
+			JOptionPane.showMessageDialog(frame,
+						      "No AltOS devices available",
+						      "No AltOS devices",
+						      JOptionPane.ERROR_MESSAGE);
 			return null;
 		}
 	}
-- 
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