1 #ifndef _GPIO_KEYS_H 2 #define _GPIO_KEYS_H 3 4 struct device; 5 6 /** 7 * struct gpio_keys_button - configuration parameters 8 * @code: input event code (KEY_*, SW_*) 9 * @gpio: %-1 if this key does not support gpio 10 * @active_low: %true indicates that button is considered 11 * depressed when gpio is low 12 * @desc: label that will be attached to button's gpio 13 * @type: input event type (%EV_KEY, %EV_SW, %EV_ABS) 14 * @wakeup: configure the button as a wake-up source 15 * @debounce_interval: debounce ticks interval in msecs 16 * @can_disable: %true indicates that userspace is allowed to 17 * disable button via sysfs 18 * @value: axis value for %EV_ABS 19 * @irq: Irq number in case of interrupt keys 20 */ 21 struct gpio_keys_button { 22 unsigned int code; 23 int gpio; 24 int active_low; 25 const char *desc; 26 unsigned int type; 27 int wakeup; 28 int debounce_interval; 29 bool can_disable; 30 int value; 31 unsigned int irq; 32 }; 33 34 /** 35 * struct gpio_keys_platform_data - platform data for gpio_keys driver 36 * @buttons: pointer to array of &gpio_keys_button structures 37 * describing buttons attached to the device 38 * @nbuttons: number of elements in @buttons array 39 * @poll_interval: polling interval in msecs - for polling driver only 40 * @rep: enable input subsystem auto repeat 41 * @enable: platform hook for enabling the device 42 * @disable: platform hook for disabling the device 43 * @name: input device name 44 */ 45 struct gpio_keys_platform_data { 46 const struct gpio_keys_button *buttons; 47 int nbuttons; 48 unsigned int poll_interval; 49 unsigned int rep:1; 50 int (*enable)(struct device *dev); 51 void (*disable)(struct device *dev); 52 const char *name; 53 }; 54 55 #endif 56