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kernel/linux-rt-4.4.41/include/linux/extcon/extcon-gpio.h 1.54 KB
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  /*
   * Single-state GPIO extcon driver based on extcon class
   *
   * Copyright (C) 2012 Samsung Electronics
   * Author: MyungJoo Ham <myungjoo.ham@samsung.com>
   *
   * based on switch class driver
   * Copyright (C) 2008 Google, Inc.
   * Author: Mike Lockwood <lockwood@android.com>
   *
   * This software is licensed under the terms of the GNU General Public
   * License version 2, as published by the Free Software Foundation, and
   * may be copied, distributed, and modified under those terms.
   *
   * 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.
   */
  #ifndef __EXTCON_GPIO_H__
  #define __EXTCON_GPIO_H__ __FILE__
  
  #include <linux/extcon.h>
  
  /**
   * struct gpio_extcon_pdata - A simple GPIO-controlled extcon device.
   * @extcon_id:		The unique id of specific external connector.
   * @gpio:		Corresponding GPIO.
   * @gpio_active_low:	Boolean describing whether gpio active state is 1 or 0
   *			If true, low state of gpio means active.
   *			If false, high state of gpio means active.
   * @debounce:		Debounce time for GPIO IRQ in ms.
   * @irq_flags:		IRQ Flags (e.g., IRQF_TRIGGER_LOW).
   * @check_on_resume:	Boolean describing whether to check the state of gpio
   *			while resuming from sleep.
   */
  struct gpio_extcon_pdata {
  	unsigned int extcon_id;
  	unsigned gpio;
  	bool gpio_active_low;
  	unsigned long debounce;
  	unsigned long irq_flags;
  
  	bool check_on_resume;
  };
  
  #endif /* __EXTCON_GPIO_H__ */