BLEDeviceConnection.kt

private val callback = object: BluetoothGattCallback() {
    override fun onDescriptorWrite(
        gatt: BluetoothGatt?,
        descriptor: BluetoothGattDescriptor,
        status: Int
    ) {
        super.onDescriptorWrite(gatt, descriptor, status)

        if (status == BluetoothGatt.GATT_SUCCESS) {
            Log.v("bluetooth", "Descriptor ${descriptor.uuid} of characteristic ${descriptor.characteristic.uuid}: write success")
        }
        else {
            Log.v("bluetooth", "Descriptor ${descriptor.uuid} of characteristic ${descriptor.characteristic.uuid}: write fail (status=$status)")
        }
    }
}