[Interest] QSerialPort read issue

[Mandeep Sandhu]

You can also try doing a raw read (non Qt way) on the device using
open/read system calls and check if data is actually available.
That'll make sure that the OS is indeed receiving data and the problem
can then be isolated to QSerialPort.

HTH,
-mandeep

On Wed, Oct 16, 2013 at 6:25 AM, nus1998 <nus1998 at yeah.net> wrote:
> HI Denis,
>
> Thanks for the reply.
>
> Even if I don't use "waitForReadyRead" but polling "bytesAvailable" instead,
> the later always returns 0 although there is data received and I can use
> other terminal software to display it too.
>
> Best regards,
> Je
>
>
>
>
>
> At 2013-10-16 01:15:36,"Denis Shienkov" <scapig2 at yandex.ru> wrote:
>
> Hi.
>
> Seems it is a bug, see: https://bugreports.qt-project.org/browse/QTBUG-33987
>
> You can test this patch.
>
> Besd regards,
> Denis
>
>
> 15.10.2013 18:37, nus1998 пишет:
>
>
> I found a strange issue, when I read from serial, first I will call
> "waitForReadyRead", it returns with true in specified time, however, when I
> call "read" function thereafter, I can't read even a byte. the hardware
> works fine since I checked it by logic analyzer.
>
> env: win7 64, qt 5.1 mingw version
>
> thanks
> Je
> ----
> from iPad
>
>
>
>
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