[Nut-upsuser] request - nutdrv_qx_megatec.c: update/fix the code for "new" UPS

[Tomáš Thiemel]

Hi.
I bought new UPS which is not "supported", yet.
 
Brand: Volt Polska
Model: Micro 800
have USB with Megatec protocol ("Q1<cr>")
Data returned by UPS: "(242.9 242.9 242.9 000 50.0 13.3 --.- 00001001"
Problem: data returned by UPS is not handled correctly by nutdrv_qx/megatec driver, although the SW from https://www.power-software-download.com/viewpower.html (JAVA) works fine.
 
"ups.temperature" is defined as "%.1f" in the source code but my UPS returns "--.-"


Debug info:
root at patschkav-OpenWrt:~# /lib/nut/nutdrv_qx -DDDDDDDDDD -a ups -x protocol=megatec
Network UPS Tools - Generic Q* USB/Serial driver 0.28 (2.7.4)
USB communication driver 0.33
   0.000000     send_to_all: SETINFO driver.parameter.port "auto"
   0.006788     send_to_all: SETINFO driver.parameter.vendorid "0665"
   0.008047     send_to_all: SETINFO driver.parameter.productid "5161"
   0.010655     send_to_all: SETINFO driver.parameter.protocol "megatec"
   0.011858     debug level is '10'
   0.014225     upsdrv_initups...
   0.019924     Checking device (0665/5161) (001/014)
   0.036693     - VendorID: 0665
   0.036788     - ProductID: 5161
   0.036819     - Manufacturer: unknown
   0.036850     - Product:
   0.036881     - Serial Number: unknown
   0.036912     - Bus: 001
   0.036942     - Device release number: 0002
   0.036971     Trying to match device
   0.037069     Device matches
   0.037178     nut_usb_set_altinterface: skipped usb_set_altinterface(udev, 0)
   0.037262     send_to_all: SETINFO ups.vendorid "0665"
   0.037317     send_to_all: SETINFO ups.productid "5161"
   0.037361     Skipping protocol Voltronic 0.06
   0.037399     Skipping protocol Voltronic-QS 0.07
   0.037438     Skipping protocol Voltronic-QS-Hex 0.10
   0.037477     Skipping protocol Mustek 0.07
   0.037514     Skipping protocol Megatec/old 0.07
   0.037551     Skipping protocol BestUPS 0.06
   0.037589     Skipping protocol Mecer 0.07
   0.052692     send: Q1
   0.054678     read: timeout (0)
   0.054842     qx_process_answer: short reply (input.voltage)
   1.465747     send: Q1
   1.494790     read [  0]: (8 bytes) => 28 32 34 30 2e 38 20 32
   1.526803     read [  8]: (8 bytes) => 34 30 2e 38 20 32 34 30
   1.558795     read [ 16]: (8 bytes) => 2e 38 20 30 30 30 20 35
   1.590799     read [ 24]: (8 bytes) => 30 2e 32 20 31 33 2e 33
   1.622797     read [ 32]: (8 bytes) => 20 2d 2d 2e 2d 20 30 30
   1.654819     read [ 40]: (8 bytes) => 30 30 31 30 30 31 0d 00
   1.654919     read: (240.8 240.8 240.8 000 50.2 13.3 --.- 00001001
   1.655052     send_to_all: SETINFO input.voltage "240.8"
   3.061834     send: I
   3.094895     read [  0]: (8 bytes) => 31 0d 00 00 00 00 00 00
   3.094994     read: 1
   3.095100     qx_process_answer: short reply (ups.firmware)
   3.095161     send_to_all: DELINFO input.voltage
   4.506937     send: Q1
   5.509389     read: Operation timed out (-145)
   5.509494     qx_process_answer: short reply (input.voltage)
   5.509541     Skipping protocol Zinto 0.06
   5.509578     Skipping protocol Q1 0.07
   5.509608     Device not supported!
   5.509638     Device not supported!
Can some skilled programmer fix the code in nutdrv_qx_megatec.c, please? I'm just stupid sysadmin. :-(Thank you very much. 
Best regards / S pozdravem
 
Tomáš Thiemel
thiemel at centrum.cz
 
 
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