android_system_core/adb/client/usb_dispatch.cpp
Josh Gao 5d1756ceb5 adb: add adb host-features, report libusb status.
Add a 'host-features' command to get the features of the currently
running host adb server. Abuse it to report libusb status.

Bug: http://b/34983123
Test: adb host-features; adb kill-server; ADB_LIBUSB=1 adb start-server; adb host-features
Change-Id: I0e8d503a2dbdff9002ebb6ce8a298498a9421422
2017-02-22 18:19:21 -08:00

50 lines
1.8 KiB
C++

/*
* Copyright (C) 2017 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <android-base/logging.h>
#include "usb.h"
void usb_init() {
if (should_use_libusb()) {
LOG(DEBUG) << "using libusb backend";
libusb::usb_init();
} else {
LOG(DEBUG) << "using native backend";
native::usb_init();
}
}
int usb_write(usb_handle* h, const void* data, int len) {
return should_use_libusb()
? libusb::usb_write(reinterpret_cast<libusb::usb_handle*>(h), data, len)
: native::usb_write(reinterpret_cast<native::usb_handle*>(h), data, len);
}
int usb_read(usb_handle* h, void* data, int len) {
return should_use_libusb()
? libusb::usb_read(reinterpret_cast<libusb::usb_handle*>(h), data, len)
: native::usb_read(reinterpret_cast<native::usb_handle*>(h), data, len);
}
int usb_close(usb_handle* h) {
return should_use_libusb() ? libusb::usb_close(reinterpret_cast<libusb::usb_handle*>(h))
: native::usb_close(reinterpret_cast<native::usb_handle*>(h));
}
void usb_kick(usb_handle* h) {
should_use_libusb() ? libusb::usb_kick(reinterpret_cast<libusb::usb_handle*>(h))
: native::usb_kick(reinterpret_cast<native::usb_handle*>(h));
}