linux/drivers/input/misc/wm831x-on.c

/*
 * wm831x-on.c - WM831X ON pin driver
 *
 * Copyright (C) 2009 Wolfson Microelectronics plc
 *
 * This file is subject to the terms and conditions of the GNU General
 * Public License. See the file "COPYING" in the main directory of this
 * archive for more details.
 *
 * This program 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 this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

#include <linux/module.h>
#include <linux/slab.h>
#include <linux/kernel.h>
#include <linux/errno.h>
#include <linux/input.h>
#include <linux/interrupt.h>
#include <linux/platform_device.h>
#include <linux/workqueue.h>
#include <linux/mfd/wm831x/core.h>

struct wm831x_on { … };

/*
 * The chip gives us an interrupt when the ON pin is asserted but we
 * then need to poll to see when the pin is deasserted.
 */
static void wm831x_poll_on(struct work_struct *work)
{ … }

static irqreturn_t wm831x_on_irq(int irq, void *data)
{ … }

static int wm831x_on_probe(struct platform_device *pdev)
{ … }

static void wm831x_on_remove(struct platform_device *pdev)
{ … }

static struct platform_driver wm831x_on_driver = …;
module_platform_driver(…) …;

MODULE_ALIAS(…) …;
MODULE_DESCRIPTION(…) …;
MODULE_LICENSE(…) …;
MODULE_AUTHOR(…) …;