[Nut-upsuser] blazer_usb - short reply

Alexander I. Gordeev lasaine at lvk.cs.msu.su
Sun Mar 22 01:23:06 UTC 2009

On Wednesday 18 March 2009 00:58:31 Andrew Zabolotny wrote:
> Hello!
> I'm trying to use nut with a Ippon Smart Winner 3000 UPS
> (http://shop.key.ru/photo/items/45535.jpg) which looks like a
> custom-labeled OEM model of the megatec branch.
> I tried both the megatec_usb and the blazer_usb drivers for it, with a
> obvious config section:
> ...and over and over again...
> So it looks like the driver talks properly with the UPS (and reads the
> voltage, temperature etc properly), but at some point the interaction is
> being suddenly interrupted (blazer_rating: short reply), then it
> reconnects again and so on in a endless loop.
> What I can do to locate and fix the problem?

I've just commited a fix for the blazer_usb driver. I'm still trying to fix 
megatec_usb also. There is a very odd and interesting problem which I want to 
The device actually hangs if not read until timeout. BTW the same logic is in 
megatec_usb's phoenix subdriver.


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