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 #include <glog/logging.h> 17 18 #include "host/libs/vadb/usb_cmd_device_list.h" 19 20 namespace vadb { 21 bool USBCmdDeviceList::OnRequest(const cvd::SharedFD& /*data*/) { 22 LOG(INFO) << "Requesting device list from Cuttlefish..."; 23 // No action required. 24 return true; 25 } 26 27 bool USBCmdDeviceList::OnResponse(bool is_success, const cvd::SharedFD& fd) { 28 // This should never happen. If this command fails, something is very wrong. 29 if (!is_success) return false; 30 31 int32_t count; 32 if (fd->Read(&count, sizeof(count)) != sizeof(count)) { 33 LOG(ERROR) << "Short read: " << fd->StrError(); 34 return false; 35 } 36 37 LOG(INFO) << "Device list completed with " << count << " devices."; 38 39 while (count-- > 0) { 40 usb_forward::DeviceInfo dev; 41 std::vector<usb_forward::InterfaceInfo> ifaces; 42 43 if (fd->Read(&dev, sizeof(dev)) != sizeof(dev)) { 44 LOG(ERROR) << "Short read: " << fd->StrError(); 45 return false; 46 } 47 48 ifaces.resize(dev.num_interfaces); 49 if (static_cast<size_t>( 50 fd->Read(ifaces.data(), 51 ifaces.size() * sizeof(usb_forward::InterfaceInfo))) != 52 ifaces.size() * sizeof(usb_forward::InterfaceInfo)) { 53 LOG(ERROR) << "Short read: " << fd->StrError(); 54 return false; 55 } 56 57 LOG(INFO) << "Found remote device 0x" << std::hex << dev.vendor_id << ":" 58 << dev.product_id; 59 60 on_device_discovered_(dev, ifaces); 61 } 62 63 return true; 64 } 65 } // namespace vadb 66
