Nut upsdev - Jun 2010 - Supporting APC 5G UPSs

Hi Guys,

I'd like to submit a patch to enable NUT to communicate with APC 5G UPSs.
The current usbhid-ups driver recognises APC UPSs by the Vendor ID and
Product ID of 0x051D and 0x0002.  This needs to be amended with the new
Product ID of 0x0003.

(See attached file: apc-hid.patch)

Secondly, when Nut polls the UPS via the interrupt channel, these will time
out, resulting in frequent lost comms.  The USB Interrupt channel is being
reserved in 5G UPSs for a proprietary protocol.  In order to enable Nut to
communicate with the UPS, a poll only configuration is required.  The
details of my ups.conf file are as follows:

[apc]
    driver = usbhid-ups
    port = auto
    pollonly = 1

Thanks,
-Chris Collins

Chris Collins |  APC by Schneider Electric  |   Senior Software Engineer
Phone: +353-91-702000 x2661  |   Mobile: +353-87-4189477
Email: chris.collins at apcc.com  |   Address: City East Business Park,
Ballybrit, Galway, IRELAND
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Citeren Chris.Collins op apcc.com:
> I'd like to submit a patch to enable NUT to communicate with APC 5G
UPSs.
> The current usbhid-ups driver recognises APC UPSs by the Vendor ID and
> Product ID of 0x051D and 0x0002.  This needs to be amended with the new
> Product ID of 0x0003.
>
> (See attached file: apc-hid.patch)
Thanks for the patch.
> Secondly, when Nut polls the UPS via the interrupt channel, these will time
> out, resulting in frequent lost comms.  The USB Interrupt channel is being
> reserved in 5G UPSs for a proprietary protocol.  In order to enable Nut to
> communicate with the UPS, a poll only configuration is required.  The
> details of my ups.conf file are as follows:
>
> [apc]
>     driver = usbhid-ups
>     port = auto
>     pollonly = 1
The 'pollonly' is a flag, so just listing 'pollonly' here would
be
enough (the '= 1' part is not used). Assuming this is important for  
this device, we should probably automatically disable the interrupt  
pipe, so this is what the revised patch will do upon detecting a 5G UPS.

Best regards, Arjen
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