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https://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson
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30ba3ead05
This patch implements a simple Keypad driver that functions as an I2C client. It handles key press events for keys connected to TCA6416 I2C based IO expander. Signed-off-by: Sriramakrishnan <srk@ti.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
35 lines
847 B
C
35 lines
847 B
C
/*
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* tca6416 keypad platform support
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*
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* Copyright (C) 2010 Texas Instruments
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*
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* Author: Sriramakrishnan <srk@ti.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#ifndef _TCA6416_KEYS_H
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#define _TCA6416_KEYS_H
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#include <linux/types.h>
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struct tca6416_button {
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/* Configuration parameters */
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int code; /* input event code (KEY_*, SW_*) */
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int active_low;
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int type; /* input event type (EV_KEY, EV_SW) */
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};
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struct tca6416_keys_platform_data {
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struct tca6416_button *buttons;
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int nbuttons;
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unsigned int rep:1; /* enable input subsystem auto repeat */
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uint16_t pinmask;
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uint16_t invert;
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int irq_is_gpio;
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int use_polling; /* use polling if Interrupt is not connected*/
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};
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#endif
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