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drivers/gpio: improved doc for gpio_init()

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This commit is contained in:
Hauke Petersen 2017-06-12 13:43:52 +02:00
parent 9ce9dd601c
commit 3ec75635ba
1 changed files with 4 additions and 0 deletions
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4
drivers/include/periph/gpio.h
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@ -138,6 +138,10 @@ typedef struct {
/**
* @brief Initialize the given pin as general purpose input or output
*
* When configured as output, the pin state after initialization is undefined.
* The output pin's state **should** be untouched during the initialization.
* This behavior can however **not be guaranteed** by every platform.
*
* @param[in] pin pin to initialize
* @param[in] mode mode of the pin, see @c gpio_mode_t
*