Re: [Nut-upsuser] trouble building nut for HID-USB [Tripp Lite 4016]

2016-10-28 Thread Charles Lepple
On Oct 28, 2016, at 8:43 AM, Dorsey, Scott B. (LARC-D316)[LITES II] wrote:
> 
> So, no suggestions for diagnosing intermittent driver loading issues?
> 
>> You might also benefit from adjusting these variables: 
>> http://lists.alioth.debian.org/pipermail/nut-upsuser/2016-October/010352.html
> 
> I tried changing the polling interval, it doesn't seem to make any 
> difference.  Either it loads when upsdrvctl runs, or it doesn't.  Once it 
> loads,
> it can poll at any rate without being a problem.
> --scott

Ah, I think I was confusing several threads. I thought you were restarting 
after the driver had indicated that the UPS had disconnected.

Since you have 2.7.4 now, there is a pair of upsdrvctl options introduced in 
2.7.2 to control retries: "maxretry" and "retrydelay".

http://networkupstools.org/docs/man/ups.conf.html

The strange part is that I would expect the "No matching HID UPS found" message 
to correlate with the UPS not showing up on lsusb. There are some corner cases, 
though.

We'll need the startup messages from the driver. I thought we had fixed this to 
pass the debug flags through, but something like "upsdrvctl -D -D start" should 
print the path to the driver, and then you can copy-and-paste that command line 
(something like "/lib/nut/usbhid-ups...") with one or more "-D" flags added to 
*that*.
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Re: [Nut-upsuser] trouble building nut for HID-USB

2016-10-28 Thread Dorsey, Scott B. (LARC-D316)[LITES II]
So, no suggestions for diagnosing intermittent driver loading issues?

> You might also benefit from adjusting these variables: 
> http://lists.alioth.debian.org/pipermail/nut-upsuser/2016-October/010352.html

I tried changing the polling interval, it doesn't seem to make any difference.  
Either it loads when upsdrvctl runs, or it doesn't.  Once it loads,
it can poll at any rate without being a problem.
--scott

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Re: [Nut-upsuser] trouble building nut for HID-USB

2016-10-13 Thread Dorsey, Scott B. (LARC-D316)[LITES II]
"lsusb" always shows the UPS.  It's always there with an ls -al.

I can start the thing, and it doesn't load wait a minute and try again and 
it doesn't load
wait another minute and it loads then try to restart a minute later and it 
doesn't load.

> You might also benefit from adjusting these variables: 
> http://lists.alioth.debian.org/pipermail/nut-upsuser/2016-October/010352.html
> though I would consider it a stop-gap measure. At some point, unless you have 
> many of the same model. the cost of the time to fiddle with it may exceed the 
> value of the UPS.

Oh, that was exceeded _weeks_ ago.  The customer for some reason wants this one.
--scott

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Re: [Nut-upsuser] trouble building nut for HID-USB

2016-10-12 Thread Charles Lepple

> On Oct 12, 2016, at 2:00 PM, Dorsey, Scott B. (LARC-D316)[LITES II] 
>  wrote:
> 
> It does in fact show exactly what you describe.  Udev is working properly 
> with the device file being assigned to group 
> dialout, which the nut user is in.  You were correct about my having had to 
> install the libusb-devel kit to make 2.7.4
> build, but it does build properly and everything seems to be working well, 
> except that the driver only sometimes loads.
> 
> About 25% of the time I get this:
>> NUT Starting UPS model drivers: 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
> 
> and the rest of the time I get this:
>> NUT Starting UPS model drivers: 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
>> No matching HID UPS found
>> Driver failed to start (exit status=1)

In the latter case, does "lsusb" show the UPS, or is it gone from that list as 
well?
> 
> Which, sadly, is the same problem I was having with 2.6.5, although I think 
> it is starting more often
> with 2.7.4.  It is very disturbing, though, to see something that only 
> sometimes works and I am not sure
> how to diagnose it from this point.

Of all of the bugs we've had in NUT over the years, the ones at this level are 
the most frustrating, because we can't add log statements to the code inside 
the UPS to see why it is dropping off the bus. It definitely seems correlated 
with NUT driver activity, but the same core driver works fine with other models 
and vendors.

You might also benefit from adjusting these variables: 
http://lists.alioth.debian.org/pipermail/nut-upsuser/2016-October/010352.html

though I would consider it a stop-gap measure. At some point, unless you have 
many of the same model. the cost of the time to fiddle with it may exceed the 
value of the UPS.

> Also I had to write a new startup script to make 2.7.4 work with Centos 
> 6.8.  It should work with all
> Centos 6.  Do you want a copy of it?  I am not sure I can donate it but I 
> will see.

I'm sure that other CentOS users would appreciate it, or at least some tips on 
how to reproduce the script. However, a while back, we (mostly) decided to stop 
shipping distro-specific files in the NUT source tree itself, and instead tried 
to work more closely with the maintainers of those distributions. The best way 
might be to file a feature request with CentOS for updating to NUT 2.7.4, and 
include whatever portion of the script that you can in that request. Wouldn't 
hurt to post a link back to this list to help others who want to upgrade.


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Re: [Nut-upsuser] trouble building nut for HID-USB

2016-10-12 Thread Dorsey, Scott B. (LARC-D316)[LITES II]
It does in fact show exactly what you describe.  Udev is working properly with 
the device file being assigned to group 
dialout, which the nut user is in.  You were correct about my having had to 
install the libusb-devel kit to make 2.7.4
build, but it does build properly and everything seems to be working well, 
except that the driver only sometimes loads.

About 25% of the time I get this:
> NUT Starting UPS model drivers: 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

and the rest of the time I get this:
> NUT Starting UPS model drivers: 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
> No matching HID UPS found
> Driver failed to start (exit status=1)

Which, sadly, is the same problem I was having with 2.6.5, although I think it 
is starting more often
with 2.7.4.  It is very disturbing, though, to see something that only 
sometimes works and I am not sure
how to diagnose it from this point.

Also I had to write a new startup script to make 2.7.4 work with Centos 
6.8.  It should work with all
Centos 6.  Do you want a copy of it?  I am not sure I can donate it but I will 
see.
--scott


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Re: [Nut-upsuser] trouble building nut for HID-USB

2016-10-10 Thread Charles Lepple
[please use Reply-All - this list does not modify the reply-to header.]

> On Oct 10, 2016, at 8:53 AM, scott.b.dor...@nasa.gov wrote:
> 
> I have a user running centos 6.8 with a brand new Tripplite HID (protocol 
> 4016)
> UPS.  So I installed nut 6.5 from EPEL and it sometimes worked, and it 
> sometimes didn't, and it seemed to be very inconsistent about loading the 
> device driver.

Protocol 4016 is a new one for us. If you run "lsusb -d 09ae:", does it show 
something like this? (this is from a protocol 3016 unit)

$ lsusb -d 09ae:
Bus 006 Device 008: ID 09ae:3016 Tripp Lite

Assuming nothing drastic has changed in this protocol, there are two places 
where the new protocol number needs to be added. The driver has a table of 
known protocol numbers (USB VendorID:ProductID pairs, really, but aside from 
PID 0001, Tripp Lite tends to keep the protocol numbers and ProductIDs in 
sync), but you can try adding the "-x productid=4016" command line option (or 
add "productid=4016" to ups.conf).

The second place is in the udev configuration files. When the UPS is first 
plugged into the USB port, the system looks up the VID:PID (and possibly some 
more attributes) in the udev configuration directories (/lib/udev/rules.d and 
/etc/udev/rules.d, if it's similar to Debian's layout), and NUT adds a 
configuration file to change ownership of the device node to allow the 
unprivileged NUT driver to control the UPS.

Probably the easiest test would be to reinstall the package, check for the udev 
file (named /lib/udev/rules.d/52-nut-usbups.rules[*] in Ubuntu 14.04) and add a 
line for your protocol number (copying the 3015 entry). Then you can run 
"udevadm trigger --subsystem-match=usb --action=change" as root to reload the 
new udev file.

[*] yours might have 62 instead, which could also be part of the problem - the 
number needs to be lower in order to override some later-numbered rules.

We're erring on the side of caution with the USB product IDs - in many cases, 
vendors have other random USB devices besides UPSes, so we don't just do a 
wildcard entry for everything with Tripp Lite's VendorID. Also, many Tripp Lite 
devices have what I would consider to be bugs in the HID descriptor, and so 
many values end up being reported in the wrong units (Hz*100 for frequency, 
microvolts for voltage measurements, etc.). When we add a product ID to the 
table, we also try to correct for the obvious typos.

If this doesn't work, please save the logs and let us know what failed.

> So, looking around and after spending some time looking at things that had 
> nothing to do with the real problem, I instead wiped the full install,
> downloaded http://www.networkupstools.org/source/2.7/nut-2.7.4.tar.gz
> and built it from source.
> 
> The problem is, even if I do a ./configure --with-usb=yes I don't get any
> usb drivers installed on the system.  usbhid-ups is no where to be found.

Centos probably comes with the runtime libraries for libusb installed by 
default, but you will also need libusb*-devel packages to build from source.

We are finishing up testing a libusb-1.0 branch of NUT, and if you encounter 
problems with the 2.6.5 package (plus the configuration changes mentioned 
above), it might be worthwhile to test with the new branch. We haven't narrowed 
down the exact problem, but some combination of the following has been 
problematic:

 - TL Protocol 3016
 - Server-class motherboards
 - Older Linux kernels (< 4.0?)
 - libusb-0.1

For some reason, our snapshots on Buildbot aren't being properly indexed by 
branch, but this build is what I am currently testing: 
http://buildbot.networkupstools.org/public/nut/builders/Debian-x64-gcc/builds/664

-- 
Charles Lepple
clepple@gmail




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