Driver GPIO ME SDK 8.2 sample - reported an error

Hello.

I put the JAD GPIOSample-ButtonId property to 1 but receive an error to run this example on the Raspberry Pi B.1

Could not open the GPIO PIN for the button: pilot reported an error

I would like to know what the error is reported by the driver, but he has no clue. A few ideas.

Some messages of most trinkets in the console of the RPi for usertest.sh:

[ERROR] ISO [DAAPI] = - 1:Can not open file/sys/class/gpio/gpio4/direction to set the direction of GPIO PIN. Operation not permitted.

I can't find this file on the file system. what it means?

Cordially, harald.

Hello

I solved this problem. I forgot to uninstall Midlets opening this pins. While I had the correct permissions but the PIN, I wanted to use was occupied by a few other Midlet. If the driver reported an error. This is correct behavior. So delete all Midlets before running the tests.

was my fault. I'm sorry.

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