59 lines
1.7 KiB
C
59 lines
1.7 KiB
C
#ifndef _GPIO_KEYS_H
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#define _GPIO_KEYS_H
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struct device;
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struct gpio_desc;
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/**
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* struct gpio_keys_button - configuration parameters
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* @code: input event code (KEY_*, SW_*)
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* @gpio: %-1 if this key does not support gpio
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* @active_low: %true indicates that button is considered
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* depressed when gpio is low
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* @desc: label that will be attached to button's gpio
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* @type: input event type (%EV_KEY, %EV_SW, %EV_ABS)
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* @wakeup: configure the button as a wake-up source
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* @debounce_interval: debounce ticks interval in msecs
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* @can_disable: %true indicates that userspace is allowed to
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* disable button via sysfs
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* @value: axis value for %EV_ABS
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* @irq: Irq number in case of interrupt keys
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* @gpiod: GPIO descriptor
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*/
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struct gpio_keys_button {
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unsigned int code;
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int gpio;
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int active_low;
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const char *desc;
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unsigned int type;
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int wakeup;
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int debounce_interval;
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bool can_disable;
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int value;
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unsigned int irq;
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struct gpio_desc *gpiod;
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};
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/**
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* struct gpio_keys_platform_data - platform data for gpio_keys driver
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* @buttons: pointer to array of &gpio_keys_button structures
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* describing buttons attached to the device
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* @nbuttons: number of elements in @buttons array
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* @poll_interval: polling interval in msecs - for polling driver only
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* @rep: enable input subsystem auto repeat
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* @enable: platform hook for enabling the device
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* @disable: platform hook for disabling the device
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* @name: input device name
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*/
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struct gpio_keys_platform_data {
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struct gpio_keys_button *buttons;
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int nbuttons;
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unsigned int poll_interval;
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unsigned int rep:1;
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int (*enable)(struct device *dev);
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void (*disable)(struct device *dev);
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const char *name;
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};
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#endif
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