1 // Copyright 2019 The Chromium OS Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 // TODO(jkwang) remove this macro once we have a proper tracing system. 6 #[macro_export] 7 macro_rules! usb_debug { 8 ($($args:tt)+) => { 9 // Set true to enable logging. 10 if false { 11 base::debug!($($args)*); 12 } 13 }; 14 } 15