관리-도구

편집 파일: gpio_keys.h

/* SPDX-License-Identifier: GPL-2.0 */ #ifndef _GPIO_KEYS_H #define _GPIO_KEYS_H #include <linux/types.h> struct device; /** * struct gpio_keys_button - configuration parameters * @code: input event code (KEY_*, SW_*) * @gpio: %-1 if this key does not support gpio * @active_low: %true indicates that button is considered * depressed when gpio is low * @desc: label that will be attached to button's gpio * @type: input event type (%EV_KEY, %EV_SW, %EV_ABS) * @wakeup: configure the button as a wake-up source * @wakeup_event_action: event action to trigger wakeup * @debounce_interval: debounce ticks interval in msecs * @can_disable: %true indicates that userspace is allowed to * disable button via sysfs * @value: axis value for %EV_ABS * @irq: Irq number in case of interrupt keys * @wakeirq: Optional dedicated wake-up interrupt */ struct gpio_keys_button { unsigned int code; int gpio; int active_low; const char *desc; unsigned int type; int wakeup; int wakeup_event_action; int debounce_interval; bool can_disable; int value; unsigned int irq; unsigned int wakeirq; }; /** * struct gpio_keys_platform_data - platform data for gpio_keys driver * @buttons: pointer to array of &gpio_keys_button structures * describing buttons attached to the device * @nbuttons: number of elements in @buttons array * @poll_interval: polling interval in msecs - for polling driver only * @rep: enable input subsystem auto repeat * @enable: platform hook for enabling the device * @disable: platform hook for disabling the device * @name: input device name */ struct gpio_keys_platform_data { const struct gpio_keys_button *buttons; int nbuttons; unsigned int poll_interval; unsigned int rep:1; int (*enable)(struct device *dev); void (*disable)(struct device *dev); const char *name; }; #endif