On Tue, Nov 29, 2011 at 1:51 AM, Uwe Bonnes
<bon@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx> wrote:
> I see messages from the kernel relating to auto-suspend of the 4232
> device. I'm not sure if these are indicative of something which could be
> contributing to what i see or not. Any ideas?
>
> Here's a small example output from dmesg when I'm running my program. It
> looks innocent enough.
>
> [28359.356403] usb 1-1.6: usb auto-resume
> [28359.393363] usb 1-1.6: finish resume
> [28361.391793] usb 1-1.6: usb auto-suspend
If you suspect this might be related to the problem, you can try to
disable the auto-suspend of your FT4232 device.
http://www.mjmwired.net/kernel/Documentation/usb/power-management.txt
> I'm using linux 3.1.0, libftdi 0.19 and libusb 0.1.12.
What if you move to libftdi-1.0 and libusb-1.0?
--
Xiaofan
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