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// SPDX-License-Identifier: GPL-2.0-or-later
/*
* usbhid-dump - device
*
* Copyright (C) 2010 Nikolai Kondrashov <spbnick@gmail.com>
*/
#include "config.h"
#include "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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