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/*!
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this file,
* You can obtain one at http://mozilla.org/MPL/2.0/.
*
* Copyright(c) 2010 Apogee Instruments, Inc.
* \namespace linuxHelpers
* \brief helper class for Linux OSs
*
*/
#include "linuxHelpers.h"
#include "../CamHelpers.h" // for UsbFrmwr namespace
#include "../apgHelper.h"
#include <libusb-1.0/libusb.h>
#include <sstream>
////////////////////////////
// GET DEVICES LINUX
std::vector< std::vector<uint16_t> > linuxHelpers::GetDevicesLinux()
{
libusb_context * ctxt = NULL;
int32_t result = libusb_init( &ctxt );
if( result )
{
std::stringstream ss;
ss << "libusb_init failed with error = " << result;
apgHelper::throwRuntimeException(__FILE__, ss.str(),
__LINE__, Apg::ErrorType_Connection );
}
try
{
libusb_device **devs = NULL;
//get the list of usb devices
const int32_t cnt = libusb_get_device_list(ctxt, &devs);
std::vector< std::vector<uint16_t> > deviceVect;
//search for and save apogee devices
for(int32_t i=0; i < cnt; ++i)
{
libusb_device_descriptor desc;
result = libusb_get_device_descriptor(devs[i], &desc);
if (result < 0)
{
//error, ignore and go to next device
continue;
}
if( UsbFrmwr::IsApgDevice(desc.idVendor, desc.idProduct) )
{
//save the values
std::vector<uint16_t> temp;
temp.push_back( libusb_get_device_address(devs[i]) );
temp.push_back( desc.idVendor );
temp.push_back( desc.idProduct );
deviceVect.push_back( temp );
}
}
libusb_free_device_list( devs, 1 );
libusb_exit( ctxt );
return deviceVect;
}
catch(std::exception & err)
{
//clean up before exiting
//wish c++ had a final like python...
libusb_exit( ctxt );
std::vector< std::vector<uint16_t> > nothing;
return nothing;
}
}
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