Blocking the GPIO

[Mark.C]

I have one gpio input set as high.

E.g. i am setting block ( as test ) when i get first ring.
After this first ring, there should not be possible to call once again.

Now…
The block is activated and it’s acting as it should, but i still can make the second call or trigger some event on this gpio.

Is there a way to block access to this gpio, on the way that no event can be triggered in the time when this block is activ ?

Mark

[awneil]

The block is activated and it’s acting as it should, but i still can make the second call or trigger some event on this gpio.

But I thought you said that the purpose of this “block” was to prevent the second call??
So how can you say that it’s “acting as it should” if it does not prevent the second call?!

I think you need to explain more clearly what you mean by this “block”.

Is there a way to block access to this gpio

Ensure that there is one - and only one - point at which the GPIO can be accessed, and maintain a flag to indicate whether access is allowed…