[Nut-upsuser] NUT support for the new Tripp Lite AVR700U (USB 3024) under OpenWrt?

[Jim Klimov]

For clarity, `upsd` is the networked data server for local or remote
clients like `upsmon` or `upsc`. It talks to locally running NUT driver(s)
which talk to actual devices with their media and protocols. It is the
driver (like `usbhid-ups`) that would be annoyed by hardware reconnections.
That said, I think there were some fixes to reconnection behavior, which
might have landed even after 2.8.0 release.

For a package rebuild, as a first step I'd suggest tracking down the source
recipe involved, and substitute new source there instead of the release
(tarball?) used originally. If needed, you can create a new tarball from
github master on any other system with `make dist`. I suppose you
cross-build the OpenWRT images on a capable system already?..

Jim


On Mon, May 8, 2023, 17:08 Feliciano Chavez <chavezfeliciano at hotmail.com>
wrote:

> Thanks for your support, Jim.
>
> I found a workaround:
> logread showed some access-denied errors, and because I don't know exactly
> what it may be (except the lack of udev rules perhaps), I ran upsd as root
> and it connected with the UPS. Therefore I wonder whether a more elegant
> solution could be used for this part?
>
> But there are several things about the readings with the 2.7.4 usbhid-ups driver
> with this UPS that doesn't make sense:
> .- the frequency here should be around 60Hz, but it reports 6010 or 5990
> or so. I suppose a 100 division is missing
> .- the input/output and battery voltages are 0V, etc.
>
> I have built some OpenWrt firmware images, but mostly customizing stuff, I
> don't have experience integrating a new version of a solution, I would have
> to keep investigating to avoid bricking my test device. I would prefer to
> mod the currently running files/libraries, if possible.
>
> FWIW, here's the version info about the relevant objects of the current
> 22.03.5 stable release of this embedded distro that ships with nut 2.7.4 (I
> don't know whether is debian-based, but .ipk packages are installed via
> opkg):
> .-
> kernel&kmod-usb-core&kmod-usb-ohci&kmod-hid&kmod-hid-generic&kmod-usb-hid
> 5.10.176-1,
> .- usbutils 014-1
> .- nut&nut-common&nut-server&nut-upsc&nut-driver-usbhid-ups 2.7.4-27
> .- usbhid-ups 0.41 (2.7.4) USB communication driver 0.33
>
> ------------------------------
> *De:* Jim Klimov <jimklimov+nut at gmail.com>
> *Enviado:* lunes, 8 de mayo de 2023 7:27 a. m.
> *Para:* Feliciano Chavez <chavezfeliciano at hotmail.com>
> *Cc:* Arnaud Quette via Nut-upsuser <nut-upsuser at alioth-lists.debian.net>
> *Asunto:* Re: [Nut-upsuser] NUT support for the new Tripp Lite AVR700U
> (USB 3024) under OpenWrt?
>
> I'm mostly not online for a few more days, so can't check directly.
>
> The general answers to the two questions would be:
>
> 1) checking if it is there:
> * revise if it is mentioned in the NEWS file (in sources - release tarball
> or on github);
> * check issues on github;
> * search/grep for 3024 in current/release-tagged codebase...
>
> 2) getting it to your system: versioning looks debianish, some
> distros/repos (sid, experimental?) already shipped 2.8.0, maybe you can
> lift such a build to your box. Otherwise, build your own (in this case
> current master may be preferable to a year-old release with its few known
> issues baked in and fixed since, or making and adding custom patches to
> existing package recipe). It may be possible Several styles of instructions
> are in source docs, github wiki...
>
> Good luck, and
> Hope this helps,
> Jim Klimov
>
>
> On Sun, May 7, 2023, 01:27 Feliciano Chavez <chavezfeliciano at hotmail.com>
> wrote:
>
> That It may be right (I don't know), however, where could we confirm
> whether 3024 is already supported for 2.8.0 or newer?
> And let's suppose it is. Because current OpenWrt releases are built
> arround 2.7.4-27, what could I try to backport that (driver mod) to
> 2.7.4-27?
>
> ------------------------------
> *De:* Jim Klimov <jimklimov+nut at gmail.com>
> *Enviado:* sábado, 6 de mayo de 2023 4:21 p. m.
> *Para:* Feliciano Chavez <chavezfeliciano at hotmail.com>
> *Cc:* Arnaud Quette via Nut-upsuser <nut-upsuser at alioth-lists.debian.net>
> *Asunto:* Re: [Nut-upsuser] NUT support for the new Tripp Lite AVR700U
> (USB 3024) under OpenWrt?
>
> I think 3024 was added after NUT 2.7.4 release.
>
> On Thu, May 4, 2023, 18:20 Feliciano Chavez via Nut-upsuser <
> nut-upsuser at alioth-lists.debian.net> wrote:
>
> Dears,
>
> I'm trying to connect this new version of the AVR700U to nut - 2.7.4-27
> running over OpenWrt 22.03.5, installed from the stable release
> repositories, for an ath79 USB2.0 gigabit WiFi router.
>
> According to the supported list, I thought this UPS was supposed to use
> the USB 2010 protocol, but I guess that was an old version because now uses
> the 3024 protocol (perhaps it would be good to add a note for future
> buyers).
> root at Router:/# lsusb
> Bus 001 Device 001: ID 1d6b:0002 Linux 5.10.176 ehci_hcd EHCI Host
> Controller
> Bus 002 Device 002: ID 09ae:3024 Tripp Lite AVR700U
> Bus 002 Device 001: ID 1d6b:0001 Linux 5.10.176 ohci_hcd Generic Platform
> OHCI controller
>
> Under networkupstools at github, I noticed the issue 808, which states
> this could be (partially) supported by including the vendor id and
> productid in ups.conf. Therefore, for the OpenWrt use case, I would have to
> add the following to /etc/config/nut-server:
> config driver 'tripplite'
> option driver usbhid-ups
> option port auto
> option vendorid 09ae
> option productid 3024
> This avoids the previous 3024 "not supported" error message,
> root at Router:/# upsdrvctl start
> Network UPS Tools - UPS driver controller 2.7.4
> Network UPS Tools - Generic HID driver 0.41 (2.7.4)
> USB communication driver 0.33
> Using subdriver: TrippLite HID 0.82
>
> but still can't connect to the UPS:
> root at Router:/# upsc tripplite
> Error: Driver not connected
>
> So I kindly ask you what could we do in this case
>
> Note: I haven't seen an udev rules file under the running OpenWrt.
>
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