[Nut-upsdev] Some questions on driver implementation and variable

[Carlos Rodrigues]

On 2/26/07, Peter Selinger <selinger at mathstat.dal.ca> wrote:
> I see. If your protocol is compatible with the megatec protocol, you
> might be able to integrate your driver with the new megatec_usb driver
> from the nut SVN trunk. That driver already supports two different
> serial-over-USB access methods; it would be easy to add another access
> method if it's not already identical to one of the supported ones. The
> main question is how compatible the underlying serial protocol is.

Judging from the existing masterguard driver, the protocol is similar
to megatec, but not quite. The command to get information _about_ the
UPS and _from_ the UPS are different. However, in the latter case, the
same command used by all other megatec UPSes also seems to be
supported, but that doesn't give as much info as the masterguard
specific one.

This means that megatec should already work with masterguard UPSes,
but with a little help it can be made to work with masterguard too. It
will require a bit of a reworking in the driver though.

-- 
Carlos Rodrigues