HelenOS sources

root/uspace/lib/device/src/device/led_dev.c

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DEFINITIONS

This source file includes following definitions.
  1. led_dev_color_set

/*
 * Copyright (c) 2014 Martin Decky
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * - Redistributions of source code must retain the above copyright
 *   notice, this list of conditions and the following disclaimer.
 * - 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.
 * - The name of the author may not be used to endorse or promote products
 *   derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
 */

/** @addtogroup libdevice
 * @{
 */
/** @file
 */

#include <errno.h>
#include <async.h>
#include <io/pixel.h>
#include <ipc/dev_iface.h>
#include <device/led_dev.h>

errno_t led_dev_color_set(async_sess_t *sess, pixel_t pixel)
{
        async_exch_t *exch = async_exchange_begin(sess);

        aid_t req = async_send_2(exch, DEV_IFACE_ID(LED_DEV_IFACE),
            LED_DEV_COLOR_SET, (sysarg_t) pixel, NULL);

        async_exchange_end(exch);

        errno_t rc;
        async_wait_for(req, &rc);

        return (errno_t) rc;
}

/** @}
 */

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