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error check on line getter

This commit is contained in:
Jakob Meier 2022-05-04 10:33:55 +02:00
parent a9041b84a3
commit 3556eca8e8
2 changed files with 5 additions and 1 deletions
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2
hal/src/fsfw_hal/common/gpio/GpioIF.h
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@ -46,7 +46,7 @@ class GpioIF : public HasReturnvaluesIF {
* an ouput or input gpio.
*
* @param gpioId A unique number which specifies the GPIO to read.
* @param gpioState State of GPIO will be written to this pointer.
* @param gpioState State of GPIO will be written to this reference
*/
virtual ReturnValue_t readGpio(gpioId_t gpioId, gpio::Levels& gpioState) = 0;
};

4
hal/src/fsfw_hal/linux/gpio/LinuxLibgpioIF.cpp
View File

@ -300,6 +300,10 @@ ReturnValue_t LinuxLibgpioIF::readGpio(gpioId_t gpioId, gpio::Levels& gpioState)
return GPIO_TYPE_FAILURE;
}
gpioState = static_cast<gpio::Levels>(gpiod_line_get_value(regularGpio->lineHandle));
if (gpioState == gpio::Levels::FAILED) {
// TODO: Print error
return RETURN_FAILED;
}
} else {
auto gpioCallback = dynamic_cast<GpioCallback*>(gpioMapIter->second);
if (gpioCallback->callback == nullptr) {