[Nut-upsdev] Liebert PSI 1440 support

Peter Selinger selinger at mathstat.dal.ca
Thu Sep 22 19:56:36 UTC 2005


Have you run the driver as root? (-u root). This is often required to
get the manufacturer/product/serial number.

If you just want to read raw information from your device, you can use
the program "get_descriptor.c" that I posted on the mailing list on
Aug 30:

http://lists.alioth.debian.org/pipermail/nut-upsdev/2005-August/000088.html

This might be a good start just to see if it's connected correctly,
and if you can post a report descriptor (descriptor 0x22), that would
reveal much of the relevant information for getting a driver to work. 

The CVS version is cleaner than the 2.0.2, but does not differ
significantly in functionality. -- Peter

Stewart Morgan wrote:
> 
> 
> Hi,
> 
> 	I've been trying (unsuccessfully) to interact with the above UPS using
> its USB/HID interface and have come to the conclusion that it's not
> going to be as "easy" as I'd first thought :(
> 
> 	My attempts have all been on FreeBSD-5 (kernel as of today) using NUT
> v2.0.2 and fiddling with newhidups -- I tried the simple approach of
> adding the IDs and "seeing what happens".  Once I'd unloaded the uhid
> (FreeBSD) device-driver and figured out the device permissions, I got
> libusb talking to the device.  However, it's unable to extract the
> manufacturer/product/serial, so something's not right.
> 
> 	Having read some more of the archives, I've noted you've cleaned up the
> driver a fair bit in CVS (which I've not tried, yet) and would like to
> help/be helped in adding support for my UPS.  So, what next?
> 
> 
> Stewart,
> 
> 
> 
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> 




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