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Subject: Re: ftdi_write_data unstable on 2.6 Works perfect on 2.4

From: Thomas Jarosch <thomas.jarosch@xxxxxxxxxxxxx>
To: libftdi@xxxxxxxxxxxxxxxxxxxxxxx
Date: Fri, 31 Jul 2009 09:19:36 +0200
Hello jc,

On Tuesday, 28. July 2009 15:53:02 J.C. Wren wrote:
> Any thoughts on what the underlying problem would be?  Is it a libftdi
> problem, or a kernel USB issue?  This same board is used daily under
> Windows (bleh) and hasn't ever exhibited this problem.

IIRC our upgrade from kernel 2.4 to kernel 2.6 was done without
a singel libftdi/libusb change and it stopped working.
So either it's a libusb or a kernel issue I guess.

My experience is that sometimes the first write() call gets lost.
Besides that it's stable. Though it doesn't always happen :-(

Cheers,
Thomas


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