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/*
This file is part of Android File Transfer For Linux.
Copyright (C) 2015-2020 Vladimir Menshakov
This library is free software; you can redistribute it and/or modify it
under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 of the License,
or (at your option) any later version.
This library is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this library; if not, write to the Free Software Foundation,
Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <usb/Context.h>
#include <usb/Directory.h>
#include <mtp/log.h>
#include <map>
#include <stdio.h>
namespace mtp { namespace usb
{
Context::Context()
{
std::string rootPath("/sys/bus/usb/devices");
Directory usbDir(rootPath);
std::map<int, std::map<std::string, DeviceDescriptorPtr> > devices;
while(true)
{
std::string entry = usbDir.Read();
if (entry.empty())
break;
try
{
unsigned busId, conf, interface;
char portBuf[256];
if (sscanf(entry.c_str(), "%u-%255[0-9.]:%u.%u", &busId, portBuf, &conf, &interface) == 4)
{
std::string port = portBuf;
if ((port.size() == 1 && port[0] == '0'))
continue;
DeviceDescriptorPtr &device = devices[busId][port];
if (!device)
{
char deviceRoot[64];
snprintf(deviceRoot, sizeof(deviceRoot), "%u-%s", busId, port.c_str());
device = std::make_shared<DeviceDescriptor>(busId, rootPath + "/" + std::string(deviceRoot));
_devices.push_back(device);
}
device->AddInterface(conf, interface, rootPath + "/" + entry);
}
}
catch(const std::exception &ex)
{
error(ex.what());
}
}
}
Context::~Context()
{
}
}}
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