[Nut-upsdev] Supporting APC 5G UPSs

[Arjen de Korte]

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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