[kepler-dev] [Bug 5341] Belkin f5u409 usb=>serial dongle periodically stops working

[bugzilla-daemon at ecoinformatics.org]

http://bugzilla.ecoinformatics.org/show_bug.cgi?id=5341

--- Comment #5 from Derik Barseghian <barseghian at nceas.ucsb.edu> 2011-05-02 18:18:47 PDT ---
The local radioshack actually doesn't carry the keyspan, so I got one off
amazon. Ubuntu recognizes it, but SPAN won't start up with it, and minicom
actually locks up when trying to initialize using default settings, in both
ubuntu 10.04 (desktop) and 9.04 (gumstix). I can get minicom to not lock up if
I turn off Hardware Flow Control. This is where I left off messing around with
the keyspan.

I setup span on my 10.04 desktop, and using the belkin i let it run, sampling
each sensor at 1sps, over the weekend and it survived. Unfortunately to do
other work I had to stop this run, so it's not conclusive the belkin won't die
on the desktop-- I'd want a run to last ~ >5 days to believe that, but it seems
very possible (typically the belkin on the gumstix would die at about a day or
so, but it has lasted longer).
I'm still a little suspicious of usb power settings on the gumstix, or worse
maybe something physical related to the OTG port + adapter + dongle. 
Afaik Dan's long-run continues to work without problem on his gumstix w/
belkin, however I recall he has a different version of the Tobi board...

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