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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/DeviceDescriptor.h>
#include <usb/call.h>
namespace mtp { namespace usb
{
DeviceDescriptor::DeviceDescriptor(libusb_device *dev): _dev(dev)
{
USB_CALL(libusb_get_device_descriptor(_dev, &_descriptor));
}
ConfigurationPtr DeviceDescriptor::GetConfiguration(int conf)
{
libusb_config_descriptor *desc;
USB_CALL(libusb_get_config_descriptor(_dev, conf, &desc));
return std::make_shared<Configuration>(desc);
}
DevicePtr DeviceDescriptor::Open(ContextPtr context)
{
libusb_device_handle *handle;
USB_CALL(libusb_open(_dev, &handle));
return std::make_shared<Device>(context, handle);
}
DevicePtr DeviceDescriptor::TryOpen(ContextPtr context)
{
libusb_device_handle *handle;
int r = libusb_open(_dev, &handle);
return r == 0? std::make_shared<Device>(context, handle): nullptr;
}
DeviceDescriptor::~DeviceDescriptor()
{ libusb_unref_device(_dev); }
ByteArray DeviceDescriptor::GetDescriptor() const
{ throw std::runtime_error("not possible with libusb"); }
}}
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