source: rtems/cpukit/libdrvmgr/drvmgr_dev_by_name.c

/* SPDX-License-Identifier: BSD-2-Clause */

/* Find device by device name
 *
 * COPYRIGHT (c) 2011 Cobham Gaisler AB.
 *
 * 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.
 *
 * 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 OWNER 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 <string.h>
#include <drvmgr/drvmgr.h>
#include "drvmgr_internal.h"

static intptr_t dev_name_compare(struct drvmgr_dev *dev, void *arg)
{
        const char *name = arg;

        if (dev->name && (strcmp(dev->name, name) == 0))
                return (intptr_t)dev;
        else
                return 0;
}

/* Get device by device name or bus name */
struct drvmgr_dev *drvmgr_dev_by_name(const char *name)
{
        if (!name)
                return NULL;

        return (struct drvmgr_dev *)
                drvmgr_for_each_dev(dev_name_compare, (void *)name, 0);
}