[Nut-upsuser] Re: Xserve, USB, NUT

[George Ross]

> Further info, here's the debug output from newhidups:
> Checking device (051D/0002) (002/003-051d-0002-00-00)
>  - VendorID: 051d
>  - ProductID: 0002
>  - Manufacturer: American Power Conversion
>  - Product: Smart-UPS 1500 FW:601.3.D USB FW:1.5
>  - Serial Number: AS0544120062
>  - Bus: 002
> Trying to match device
> Device matches
> failed to claim USB device...
> HID descriptor retrieved (Reportlen = 61939)
> Unable to get Report descriptor (-1)

What does "lsusb -v" say for the descriptor length?

FWIW, this...

--- drivers/libusb.c.dist       2005-12-22 14:40:27.000000000 +0000
+++ drivers/libusb.c    2006-01-06 12:46:35.000000000 +0000
@@ -226,6 +226,9 @@
                                TRACE(2, "  Couldn't retrieve descriptors");
                                goto next_device;
                        }
+
+/* HACK */
+desc->wDescriptorLength = 1040;
 
                        /* res = usb_get_descriptor(udev, USB_DT_REPORT, 0, bigbuf, desc->wDescriptorLength); */
                        res = usb_control_msg(udev, USB_ENDPOINT_IN+1, USB_REQ_GET_DESCRIPTOR,

...is what I'm using to get the driver to work with our APC UPSes!

(Arnaud, John Stamp and I had a brief discussion of this last June, but I 
ran out of time then to investigate further.  I've flagged it as still an 
issue with 2.0.3-pre2, though the mail-list archive seems to have mangled 
the upsdev postings as I'd gpg-signed them; maybe I should re-post...)
-- 
Dr George D M Ross, School of Informatics, University of Edinburgh
    Kings Buildings, Mayfield Road, Edinburgh, Scotland, EH9 3JZ
Mail: gdmr at inf.ed.ac.uk   Voice: +44 131 650 5147   Fax: +44 131 667 7209
 PGP: 1024D/AD758CC5  B91E D430 1E0D 5883 EF6A  426C B676 5C2B AD75 8CC5


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