[Nut-upsdev] Question on support for Upsonic Commercial UPS CXR 2000 - 2000VA/1200W - Rack/Tower on Freebsd 9.1.

[Chris Duffy]

Thx Charles,

So since this is a new type of UPSonic UPS, do you think
the vendor screwed up or is it just some quirk on Freebsd?

Yes, if you can look into this I would appreciate it.
I do not see anyone else on the Web attempting to use
this new device yet.....but.......

Regards
chris

On 2/6/14, 8:24 AM, Charles Lepple wrote:
> On Feb 6, 2014, at 8:41 AM, Chris Duffy wrote:
>
>>    0.016485    Trying megatec protocol...
>>    0.017411    send: Q1
>>    0.252545    read: (244.4 244.4 229.9 028 50.0 2.19 23.1 00000001
>>    0.252589    Status read in 1 tries
>>    0.252602    Supported UPS detected with megatec protocol
>>    1.288032    send: Unknown error
>>    1.288085    Permissions problem: Input/output error
>>
> Interesting that it gets past the first send/read pair.
>
>> dmesg output:
>>
>>
>> ugen1.3: <PPC> at usbus1 (disconnected)
>> uhid0: at uhub3, port 1, addr 3 (disconnected)
>> ugen1.3: <PPC> at usbus1
>> uhid0: <PPC USB UPS, class 0/0, rev 2.00/0.03, addr 3> on usbus1
>
> Well, that's frustrating.
>
> The chain of command is something like this:
>
> NUT USB-based drivers -> libusb -> ugen kernel driver -> device
>
> The uhid driver tries to offer access to HID devices, but most USB devices that were designed to work on Windows abuse the HID protocol to avoid requiring a kernel driver.
>
> There is a "quirks list" that effectively kicks uhid out of the way, and that has been necessary for other UPSes on FreeBSD, such as the following:
>
> http://www.freebsd.org/cgi/query-pr.cgi?pr=134766
>
> I'm not sure of the exact steps to take next, but I can look into it.
>


-- 
Chris Duffy
Product Support
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