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A struct device parameter is used in the enable and disable callbacks to distinguish between different gpio_keys devices. Platforms that don't use these callbacks may not include struct device at all, as seen on arch/arm/mach-s3c2410/mach-n30.c Signed-off-by: Heiko Stuebner <heiko@sntech.de> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
30 lines
846 B
C
30 lines
846 B
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_keys_button {
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/* Configuration parameters */
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unsigned int code; /* input event code (KEY_*, SW_*) */
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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; /* input event type (EV_KEY, EV_SW, EV_ABS) */
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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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int value; /* axis value for EV_ABS */
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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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const char *name; /* input device name */
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};
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#endif
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