diff options
| author | Phil Burk <philburk@google.com> | 2015-09-22 12:07:31 -0700 |
|---|---|---|
| committer | Phil Burk <philburk@google.com> | 2015-09-22 12:30:52 -0700 |
| commit | 95129f50c68c734c5ebdf32ff6b8b9c63cc1ada7 (patch) | |
| tree | 4984bdb5ce3efac85632950aa30ae40a256d6f9b | |
| parent | bba5a1514e83e2a075bd47b22a8d50a9d730653d (diff) | |
BluetoothMidiDevice: change write type to support JamStik
Temporarily use a Request instead of a Command so that the JamStik
will be properly enabled.
Bug: 24207964
Change-Id: I3d11732958c46e6039405b5969d5af0db8032fb9
Signed-off-by: Phil Burk <philburk@google.com>
| -rw-r--r-- | media/packages/BluetoothMidiService/src/com/android/bluetoothmidiservice/BluetoothMidiDevice.java | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/media/packages/BluetoothMidiService/src/com/android/bluetoothmidiservice/BluetoothMidiDevice.java b/media/packages/BluetoothMidiService/src/com/android/bluetoothmidiservice/BluetoothMidiDevice.java index e6d59e4fb141..444705cfc79f 100644 --- a/media/packages/BluetoothMidiService/src/com/android/bluetoothmidiservice/BluetoothMidiDevice.java +++ b/media/packages/BluetoothMidiService/src/com/android/bluetoothmidiservice/BluetoothMidiDevice.java @@ -147,14 +147,22 @@ public final class BluetoothMidiDevice { // switch to receiving notifications after initial characteristic read mBluetoothGatt.setCharacteristicNotification(characteristic, true); + // Use writeType that requests acknowledgement. + // This improves compatibility with various BLE-MIDI devices. + int originalWriteType = characteristic.getWriteType(); + characteristic.setWriteType(BluetoothGattCharacteristic.WRITE_TYPE_DEFAULT); + BluetoothGattDescriptor descriptor = characteristic.getDescriptor( CLIENT_CHARACTERISTIC_CONFIG); if (descriptor != null) { descriptor.setValue(BluetoothGattDescriptor.ENABLE_NOTIFICATION_VALUE); - mBluetoothGatt.writeDescriptor(descriptor); + boolean result = mBluetoothGatt.writeDescriptor(descriptor); + Log.d(TAG, "writeDescriptor returned " + result); } else { Log.e(TAG, "No CLIENT_CHARACTERISTIC_CONFIG for device " + mBluetoothDevice); } + + characteristic.setWriteType(originalWriteType); } @Override |