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/** @file
* @brief usbhid-dump - device
*
* Copyright (C) 2010 Nikolai Kondrashov
*
* This file is part of usbhid-dump.
*
* Usbhid-dump is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* Usbhid-dump 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with usbhid-dump; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
* @author Nikolai Kondrashov <spbnick@gmail.com>
*
* @(#) $Id$
*/
#include "uhd/dev.h"
#include <assert.h>
#include <stdlib.h>
bool
uhd_dev_valid(const uhd_dev *dev)
{
return dev != NULL &&
dev->handle != NULL;
}
enum libusb_error
uhd_dev_open(libusb_device *lusb_dev,
uhd_dev **pdev)
{
enum libusb_error err;
uhd_dev *dev;
assert(lusb_dev != NULL);
dev = malloc(sizeof(*dev));
if (dev == NULL)
return LIBUSB_ERROR_NO_MEM;
dev->next = NULL;
err = libusb_open(lusb_dev, &dev->handle);
if (err != LIBUSB_SUCCESS)
{
free(dev);
return err;
}
assert(uhd_dev_valid(dev));
if (pdev != NULL)
*pdev = dev;
else
{
libusb_close(dev->handle);
free(dev);
}
return LIBUSB_SUCCESS;
}
void
uhd_dev_close(uhd_dev *dev)
{
if (dev == NULL)
return;
assert(uhd_dev_valid(dev));
libusb_close(dev->handle);
dev->handle = NULL;
free(dev);
}
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