Print/Stream API is old. availableForWrite is missing

[JAndrassy]

this should be applied
arduino/ArduinoCore-API#104

or this
arduino/ArduinoCore-samd#254

[fpistm]

Hi @JAndrassy

Thanks for the API update.

Could you submit a PR for this ?

Thanks

[JAndrassy]

Hi @JAndrassy

Thanks for the API update.

Could you submit a PR for this ?

Thanks

sorry, no. it is too much work. (I created this issue in 3 other cores too)