monero/cmake/test-libusb-version.c

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// Copyright (c) 2014-2020, The Monero Project
//
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without modification, are
// permitted provided that the following conditions are met:
//
// 1. Redistributions of source code must retain the above copyright notice, this list of
// conditions and the following disclaimer.
//
// 2. Redistributions in binary form must reproduce the above copyright notice, this list
// of conditions and the following disclaimer in the documentation and/or other
// materials provided with the distribution.
//
// 3. Neither the name of the copyright holder nor the names of its contributors may be
// used to endorse or promote products derived from this software without specific
// prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
// THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
// THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#include <libusb.h>
#define UNUSED(expr) (void)(expr)
int main(int argc, char *argv[]) {
libusb_device **devs;
libusb_context *ctx = NULL;
int r = libusb_init(&ctx); UNUSED(r);
ssize_t cnt = libusb_get_device_list(ctx, &devs); UNUSED(cnt);
struct libusb_device_descriptor desc;
r = libusb_get_device_descriptor(devs[0], &desc); UNUSED(r);
uint8_t bus_id = libusb_get_bus_number(devs[0]); UNUSED(bus_id);
uint8_t addr = libusb_get_device_address(devs[0]); UNUSED(addr);
uint8_t tmp_path[16];
r = libusb_get_port_numbers(devs[0], tmp_path, sizeof(tmp_path));
UNUSED(r);
UNUSED(tmp_path);
libusb_free_device_list(devs, 1);
libusb_exit(ctx);
}