[Nut-upsuser] Atlantis-Land UPS with Cypress CY7C63723 chip (cypress_m8 driver) support

ngpost1 ngpost1 at etitech.net
Wed Dec 7 16:52:37 UTC 2005

Hello everybody!

   I am trying to get an Atlantis-Land OnePower Line Interactive S1501 
UPS (actually it is made by Ablerex) to talt to my Linux box through its 
USB port (no more RS-232...), either using the supplied program 
(UPSilon2000, works under Win and Linux) or whatever else.

   The UPSilon2000 program apparently works OK *if* it can talk to the 
UPS via a serial port; since my UPS has a USB port, no luck (I get a 
series of error messages). On the other hand, I verified the UPSilon2000 
works OK under Windoze, again through the USB port.

   The error I get is:
drivers/usb/input/hid-core.c: couldn't find an input interrupt endpoint
usbhid: probe of 3-2:1.0 failed with error -5

   I opened the UPS and found a Cypress CY7C63723-PC chip. So I wrote to 
Lonnie Mendez, the maintainer of the cypress_m8 driver; this is what he 
replied (quoting with permission):

 >  Yes, the CY7C63723 is in the family.  However in this instance, the 
device seems
 > to go by the standards defined in the HID documentation at usb.org 
(notice the several
 > usage definitions given by the hid report descriptor).  So the 
cypress_m8 driver will most
 > definitely NOT work with this device (ie: it doesn't go by the CY4601 
specifications, which
 > needs 2 interrupt endpoints).

 >  I'd email the developers over at networkupstools.org (the guys that 
made NUT) the entire lsusb -v output you gave me
 > from the BusID all the way down to the last usage in the hid report 
descriptor.  They can most likely
 > use this information to add support for this device, as it seems to 
go by some standards... at least under
 > the usb.org HID specification for UPS devices.

   Before I post the entire lsusb output and generate a lot of noise on 
the list, I just wanted to be sure this is the right list for this kind 
of questions. Please do let me know.

Many thanks in advance for your attention.


More information about the Nut-upsuser mailing list