1 /* 2 * Copyright (C) 2017 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #include <android-base/logging.h> 18 #include "usb.h" 19 20 void usb_init() { 21 if (should_use_libusb()) { 22 LOG(DEBUG) << "using libusb backend"; 23 libusb::usb_init(); 24 } else { 25 LOG(DEBUG) << "using native backend"; 26 native::usb_init(); 27 } 28 } 29 30 int usb_write(usb_handle* h, const void* data, int len) { 31 return should_use_libusb() 32 ? libusb::usb_write(reinterpret_cast<libusb::usb_handle*>(h), data, len) 33 : native::usb_write(reinterpret_cast<native::usb_handle*>(h), data, len); 34 } 35 36 int usb_read(usb_handle* h, void* data, int len) { 37 return should_use_libusb() 38 ? libusb::usb_read(reinterpret_cast<libusb::usb_handle*>(h), data, len) 39 : native::usb_read(reinterpret_cast<native::usb_handle*>(h), data, len); 40 } 41 42 int usb_close(usb_handle* h) { 43 return should_use_libusb() ? libusb::usb_close(reinterpret_cast<libusb::usb_handle*>(h)) 44 : native::usb_close(reinterpret_cast<native::usb_handle*>(h)); 45 } 46 47 void usb_kick(usb_handle* h) { 48 should_use_libusb() ? libusb::usb_kick(reinterpret_cast<libusb::usb_handle*>(h)) 49 : native::usb_kick(reinterpret_cast<native::usb_handle*>(h)); 50 } 51
