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ad8dc96e3b
Add a GPIO 1-wire bus master driver. The driver used the GPIO API to control the wire and the GPIO pin can be specified using platform data similar to i2c-gpio. The driver was tested with AT91SAM9260 + DS2401. Signed-off-by: Ville Syrjala <syrjala@sci.fi> Cc: Evgeniy Polyakov <johnpol@2ka.mipt.ru> Cc: David Brownell <david-b@pacbell.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
23 lines
616 B
C
23 lines
616 B
C
/*
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* w1-gpio interface to platform code
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*
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* Copyright (C) 2007 Ville Syrjala <syrjala@sci.fi>
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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
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* as published by the Free Software Foundation.
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*/
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#ifndef _LINUX_W1_GPIO_H
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#define _LINUX_W1_GPIO_H
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/**
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* struct w1_gpio_platform_data - Platform-dependent data for w1-gpio
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* @pin: GPIO pin to use
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* @is_open_drain: GPIO pin is configured as open drain
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*/
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struct w1_gpio_platform_data {
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unsigned int pin;
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unsigned int is_open_drain:1;
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};
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#endif /* _LINUX_W1_GPIO_H */
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