LXR linux/include/linux/i2c/i2c-hid.h

   1/*
   2 * HID over I2C protocol implementation
   3 *
   4 * Copyright (c) 2012 Benjamin Tissoires <benjamin.tissoires@gmail.com>
   5 * Copyright (c) 2012 Ecole Nationale de l'Aviation Civile, France
   6 *
   7 * This file is subject to the terms and conditions of the GNU General Public
   8 * License.  See the file COPYING in the main directory of this archive for
   9 * more details.
  10 */
  11
  12#ifndef __LINUX_I2C_HID_H
  13#define __LINUX_I2C_HID_H
  14
  15#include <linux/types.h>
  16
  17/**
  18 * struct i2chid_platform_data - used by hid over i2c implementation.
  19 * @hid_descriptor_address: i2c register where the HID descriptor is stored.
  20 *
  21 * Note that it is the responsibility of the platform driver (or the acpi 5.0
  22 * driver) to setup the irq related to the gpio in the struct i2c_board_info.
  23 * The platform driver should also setup the gpio according to the device:
  24 *
  25 * A typical example is the following:
  26 *      irq = gpio_to_irq(intr_gpio);
  27 *      hkdk4412_i2c_devs5[0].irq = irq; // store the irq in i2c_board_info
  28 *      gpio_request(intr_gpio, "elan-irq");
  29 *      s3c_gpio_setpull(intr_gpio, S3C_GPIO_PULL_UP);
  30 */
  31struct i2c_hid_platform_data {
  32        u16 hid_descriptor_address;
  33};
  34
  35#endif /* __LINUX_I2C_HID_H */
  36