I try to find how handle push button to implement some action. After search on legato and mangoh forum, i’ve never found a correct response. So i’ve make some test from gpioCf3Demo . but when i run my application, i’ve this message: gpioSysfsUtils.c ExportGpio() 151 | Failed to export GPIO 14. Er…

I don’t see there is gpio14 in wp77 product technical specification

But in the mangoh red spécification, the push button is on the gpio 14 !

it is the io14 of the gpio expander sx1509biultrt!!!

Great ! But that doesn’t answer my initial question. [image] philippesurbayrole: So, how i can use the push button ?

I never used before, but here has an example for reference [image] gpioExpanderService with MangOH Red Hello, I would like to use the gpioExpanderService with the MangOH RED. In the MangOH.sdef I can see the gpioExpanderService is removed from build with this explanat…

Yes, i’ve tested but there is some conflic with the led ! The GPIO of the led give correct response, but but the led does not light up !

Here I have tried to control the SD_SEL pin, it is working fine for me on mangoh red board. gpioexp 1 1 enable //To switch SDIO_SEL to SD CARD: gpioexp 1 9 output normal high >/dev/null //To switch SDIO_SEL to IOT0 slot: gpioexp 1 9 output normal low >/dev/null Also I have tried the following…

Push Button ( gptio pin 14 ) not permited

jyijyi October 22, 2020, 12:49pm 6

I never used before, but here has an example for reference

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Push Button ( gptio pin 14 ) not permited

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