"Eu posso entrar?"

Translation: Can I come in?

[a.vickers]

Does this mean am I physically able to come in I.e. 'can I' or is it seeking permission to come in I.e.'may I'? Or could it mean either and, if so, does the meaning depend on the context?

[Paulenrique]

For me, it sounds someone is asking if he/she is allowed to come in, not a capacity...