I don't see any mention of a "dumb" driver in sources, so first
please
check you've got a useful driver name there.
Also you may have to chown/chmod the devfs sockets to let your packaged
run-time user/group accounts for NUT daemons access them.
On Thu, Apr 21, 2022, 18:47 Philippe LeCavalier via Nut-upsuser <
nut-upsuser at alioth-lists.debian.net> wrote:
> I'm trying to connect my debian box to an apc smart-ups SC 450 with
serial
> port only. The debian box has a serial male port. I' got nut-server and
> client installed put dumb as the driver.
>
> Debian 10.7
> nut-server 2.7.4-8
>
> driver = dumb
> port = /dev/ttyS0
> cable = 940-0024E
> 00:02: ttyS0 at I/O 0x3f8 (irq = 4, base_baud = 115200) is a 16550A
>
> I also bought a cable with a FTDI chip which Debian sees as ttyUSB0 but
> that isn't working either.
>
> All I ever get is Driver not connected.
>
> Thanks, Phil
> _______________________________________________
> Nut-upsuser mailing list
> Nut-upsuser at alioth-lists.debian.net
> https://alioth-lists.debian.net/cgi-bin/mailman/listinfo/nut-upsuser
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL:
<http://alioth-lists.debian.net/pipermail/nut-upsuser/attachments/20220422/653efe19/attachment.htm>