Support for Descriptor Read/Writes

[swanav]

Is your feature request related to a problem? (please describe)
For an application, I need to read the descriptors of my characteristics to figure out the functionality of the characteristics.

Describe the solution you'd like
An API which should allow me to write and read descriptor values for a characteristic

Describe alternatives you've considered

Additional context

I'll be glad to provide if any further information is needed.

[remonh87]

@swanav I think reading a descriptor should be possible. I noticed on Android it is possible to set descriptors not sure if it is possible on iOS (the docs are a bit vague there).

[swanav]

Hi @remonh87!

It's possible to write descriptors on iOS as well.

Here's a reference to the API from CoreBluetooth which provides this functionality.

writeValue(_:for:) | Apple Developer Documentation

Though my use case primarily needs to read the descriptors, but for the sake of completeness I feel write support should also be included as well.

[ened]

@swanav this is WIP in #453 - interested to hear your thoughts

[sidwarkd]

@ened I am anxiously awaiting the ability for the library to have Descriptor read capabilities. When you get to a point I'd be happy to help test #453

[edvardmk]

Me as well. Great initiative @ened! Are you planing to include it soon?