2 * Author: Thomas Ingleby <thomas.c.ingleby@intel.com>
3 * Copyright (c) 2014 Intel Corporation.
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31 * Will check input is valid for gpio and will also setup required multiplexers.
32 * @param pin the pin as read from the board surface. i.e IO3 would be 3/
33 * @return the pin as found in the pinmap
35 unsigned int mraa_setup_gpio(int pin);
37 /** Setup Analog interface
39 * Will check input is valid for aio and will also setup required multiplexers.
40 * @param pin the pin as read from the board surface. i.e A3 would be 3/
41 * @return the pin as found in the pinmap
43 unsigned int mraa_setup_aio(int pin);
45 /** Setup i2c interface, sets up multiplexer on device.
47 * @return unsigned int if using /dev/i2c-2 returned would be 2
49 unsigned int mraa_setup_i2c(int bus);
51 /** Setup spi interface, sets up multiplexer on device.
53 * @return spi bus type
55 mraa_spi_bus_t* mraa_setup_spi(int bus);
59 * Will check input is valid for pwm and will also setup required multiplexers.
60 * IF the pin also does gpio (strong chance), DO NOTHING, REV D quirk
61 * @param pin the pin as read from the board surface.
62 * @return the pwm pin_info_t of that IO pin
64 mraa_pin_t* mraa_setup_pwm(int pin);
66 /** Setup gpio mux to go straight to SoC, galileo.
68 * @param pin physical pin to use
69 * @return mraa_mmap_pin_t
71 mraa_mmap_pin_t* mraa_setup_mmap_gpio(int pin);
73 /** Swap Directional mode.
75 * @param pin physical pin to operate on
76 * @return out direction to setup. 1 for output 0 for input
78 mraa_result_t mraa_swap_complex_gpio(int pin, int out);