libftdi Archives

Subject: Re: libftdi: Make ftdi_read_data() honor usb_read_timeout

From: Uwe Bonnes <bon@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx>
To: libftdi@xxxxxxxxxxxxxxxxxxxxxxx
Date: Wed, 7 Jul 2010 16:52:06 +0200
>>>>> "Thomas" == Thomas Jarosch <thomas.jarosch@xxxxxxxxxxxxx> writes:

    Thomas> Uwe, On Tuesday, 6. July 2010 18:59:17 Uwe Bonnes wrote:
    >> >>>>> "Thomas" == Thomas Jarosch <thomas.jarosch@xxxxxxxxxxxxx>
    >> writes:
    Thomas> One thing comes to my mind: What happens to applications
    Thomas> expecting the current behavior? I'm currently trying to
    >> figure Thomas> out if this would break something. Hmm.
    >> At present, mosten no Byte is returen, but also sometimes some bytes
    >> of the request, depending on rate and scheduling. So the application
    >> must cope with the data even in the old behaviour.

    Thomas> I take your word for it, applied :) I also included a small
    Thomas> compile fix if async mode is disabled.

Let's get back reports from users. Hopefully my thoughts had no big flaw.

Any thought about Martin Zenzes proposal to have an API to query the
version. It would be good if applications could query the version to decide
if the old or new behaviour of ftdi_read_data() is available.
Uwe Bonnes                bon@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx

Institut fuer Kernphysik  Schlossgartenstrasse 9  64289 Darmstadt
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