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gpio: rework of gpio - using open() for value_fp

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* fixes maa_gpio_read by using simple posix file io
* fixes blink sample to have much more error checking
* blink sample now takes an argument

Signed-off-by: Brendan Le Foll <brendan.le.foll@intel.com>
This commit is contained in:
Brendan Le Foll
2014-05-13 15:35:27 +01:00
parent aa60cae49d
commit 126b1314b0
5 changed files with 150 additions and 38 deletions
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2
api/gpio.h
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@@ -45,7 +45,7 @@ extern "C" {
typedef struct {
/*@{*/
int pin; /**< the pin number, as known to the os. */
FILE *value_fp; /**< the file pointer to the value of the gpio */
int value_fp; /**< the file pointer to the value of the gpio */
void (* isr)(); /**< the interupt service request */
pthread_t thread_id; /**< the isr handler thread id */
int isr_value_fp; /**< the isr file pointer on the value */