altoslib: Support binary reading/writing in AltosLink

Binary reads require an explicit length, and do not work while
telemetry is running.

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

1 files changed, 14 insertions, 0 deletions

diff --git a/altosdroid/src/org/altusmetrum/AltosDroid/AltosBluetooth.java b/altosdroid/src/org/altusmetrum/AltosDroid/AltosBluetooth.java
index 0ed31437..643e94f5 100644
--- a/altosdroid/src/org/altusmetrum/AltosDroid/AltosBluetooth.java
+++ b/altosdroid/src/org/altusmetrum/AltosDroid/AltosBluetooth.java
@@ -162,6 +162,20 @@ public class AltosBluetooth extends AltosLink {
 		}
 	}
 
+	public void putchar(byte c) {
+		byte[] bytes = { c };
+		if (D) Log.d(TAG, "print(): begin");
+		try {
+			wait_connected();
+			output.write(bytes);
+			if (D) Log.d(TAG, "print(): Wrote byte: '" + c + "'");
+		} catch (IOException e) {
+			connection_lost();
+		} catch (InterruptedException e) {
+			connection_lost();
+		}
+	}		
+
 	public int getchar() {
 		try {
 			wait_connected();