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0e7d0c860a
The existing gpio-keys driver can be usable only for GPIO lines with interrupt support. Several devices have buttons connected to a GPIO line which is not capable to generate interrupts. This patch adds a new input driver using the generic GPIO layer and the input-polldev to support such buttons. [Ben Gardiner <bengardiner@nanometrics.ca: fold code to use more of the original gpio_keys infrastructure; cleanups and other improvements.] Signed-off-by: Gabor Juhos <juhosg@openwrt.org> Signed-off-by: Ben Gardiner <bengardiner@nanometrics.ca> Tested-by: Ben Gardiner <bengardiner@nanometrics.ca> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
27 lines
715 B
C
27 lines
715 B
C
#ifndef _GPIO_KEYS_H
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#define _GPIO_KEYS_H
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struct gpio_keys_button {
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/* Configuration parameters */
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int code; /* input event code (KEY_*, SW_*) */
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int gpio;
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int active_low;
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char *desc;
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int type; /* input event type (EV_KEY, EV_SW) */
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int wakeup; /* configure the button as a wake-up source */
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int debounce_interval; /* debounce ticks interval in msecs */
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bool can_disable;
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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; /* polling interval in msecs -
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for polling driver only */
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unsigned int rep:1; /* enable input subsystem auto repeat */
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int (*enable)(struct device *dev);
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void (*disable)(struct device *dev);
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};
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#endif
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