[PATCH 2/2] qtserialbluetooth: use QIODevice::Unbuffered io

[Claudiu Olteanu]

Hi there,

I just tested the patches and all seems good. Thanks for making time
to resolve this issue.

I managed to update the firmware on my OSTC Sport device using our BTH
implementation (from 10.18 to 10.20).
I also have an OSTC 2 device with an old firmware (1.81) but it
doesn't detect that there is an update for it (even though the latest
version is 1.88).

Claudiu