diff options
Diffstat (limited to 'kernel/include/linux/gpio_keys.h')
| -rw-r--r-- | kernel/include/linux/gpio_keys.h | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/kernel/include/linux/gpio_keys.h b/kernel/include/linux/gpio_keys.h new file mode 100644 index 000000000..ee2d8c6f9 --- /dev/null +++ b/kernel/include/linux/gpio_keys.h @@ -0,0 +1,58 @@ +#ifndef _GPIO_KEYS_H +#define _GPIO_KEYS_H + +struct device; +struct gpio_desc; + +/** + * 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 + * @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 + * @gpiod: GPIO descriptor + */ +struct gpio_keys_button { + unsigned int code; + int gpio; + int active_low; + const char *desc; + unsigned int type; + int wakeup; + int debounce_interval; + bool can_disable; + int value; + unsigned int irq; + struct gpio_desc *gpiod; +}; + +/** + * 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 { + 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 |