on Fry's Electronics MEC0003 device, nut fails to read values unless upsmart is launched first

[mailinglists35]

scenario 1:

plug usb
start nut
(no matter how many times start stop nut)

result: values are all zero

---

scenario 2:

plug usb
start upsmart once
exit upsmart
start nut
stop/start nut forever

result: values are like in upsmart

remove cable, replug cable, goto scenario 1

---

attached nut.pcap on scenario 1
upsmart.pcap and nut pcap in scenario 2
device commercial name: UPS Serioux Line Interactive 800LI, SKU codename SRXU-LD800LI or LD800LI
hope this helps you find what upsmart is doing to "initialize" the ups and improve the hunnox subdriver
linux version of upsmart: https://zircon.co.th/download_software_for_ups scroll down click on download upsmart will take you to a google drive link
PS:

$ dpkg -l nut nut-client nut-server | grep ^ii
ii  nut            2.8.0-1ppa10~ubuntu22.04 all          network UPS tools - metapackage
ii  nut-client     2.8.0-1ppa10~ubuntu22.04 amd64        network UPS tools - clients
ii  nut-server     2.8.0-1ppa10~ubuntu22.04 amd64        network UPS tools - core system

$ sudo grep -Ev '^(#|\s*$)' /etc/nut/ups.conf
maxretry = 3
[serioux]
        driver = "nutdrv_qx"
        port = "auto"
        subdriver = "hunnox"
        vendorid = "0001"
        productid = "0000"
        novendor
        protocol = "megatec"
        desc = "serioux"

$ sudo lsusb -d 0001:0000 -v

Bus 001 Device 008: ID 0001:0000 Fry's Electronics MEC0003
Device Descriptor:
  bLength                18
  bDescriptorType         1
  bcdUSB               2.00
  bDeviceClass            0
  bDeviceSubClass         0
  bDeviceProtocol         0
  bMaxPacketSize0         8
  idVendor           0x0001 Fry's Electronics
  idProduct          0x0000
  bcdDevice            1.00
  iManufacturer           0
  iProduct                1 MEC0003
  iSerial                 0
  bNumConfigurations      1
  Configuration Descriptor:
    bLength                 9
    bDescriptorType         2
    wTotalLength       0x0029
    bNumInterfaces          1
    bConfigurationValue     1
    iConfiguration          0
    bmAttributes         0x80
      (Bus Powered)
    MaxPower              100mA
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        0
      bAlternateSetting       0
      bNumEndpoints           2
      bInterfaceClass         3 Human Interface Device
      bInterfaceSubClass      0
      bInterfaceProtocol      0
      iInterface              0
        HID Device Descriptor:
          bLength                 9
          bDescriptorType        33
          bcdHID               1.11
          bCountryCode            0 Not supported
          bNumDescriptors         1
          bDescriptorType        34 Report
          wDescriptorLength     624
          Report Descriptor: (length is 624)
            Item(Global): Usage Page, data= [ 0x86 ] 134
                            Power Pages
            Item(Local ): Usage, data= [ 0x04 ] 4
                            (null)
            Item(Main  ): Collection, data= [ 0x01 ] 1
                            Application
            Item(Global): Usage Page, data= [ 0x84 ] 132
                            Power Device Page
            Item(Local ): Usage, data= [ 0x1e ] 30
                            Flow
            Item(Main  ): Collection, data= [ 0x00 ] 0
                            Physical
            Item(Global): Report ID, data= [ 0x01 ] 1
            Item(Local ): Usage, data= [ 0x1f ] 31
                            Flow ID
            Item(Global): Unit, data= [ 0x00 ] 0
                            System: None, Unit: (None)
            Item(Global): Report Size, data= [ 0x04 ] 4
            Item(Global): Report Count, data= [ 0x01 ] 1
            Item(Global): Logical Minimum, data= [ 0x00 ] 0
            Item(Global): Logical Maximum, data= [ 0x0f ] 15
            Item(Global): Unit, data= [ 0x00 ] 0
                            System: None, Unit: (None)
            Item(Main  ): Feature, data= [ 0x02 ] 2
                            Data Variable Absolute No_Wrap Linear
                            Preferred_State No_Null_Position Non_Volatile Bitfield
            Item(Global): Report Size, data= [ 0x04 ] 4
            Item(Global): Report Count, data= [ 0x01 ] 1
            Item(Main  ): Feature, data= [ 0x03 ] 3
                            Constant Variable Absolute No_Wrap Linear
                            Preferred_State No_Null_Position Non_Volatile Bitfield
            Item(Local ): Usage, data= [ 0x40 ] 64
                            Config Voltage
            Item(Global): Report Size, data= [ 0x10 ] 16
            Item(Global): Report Count, data= [ 0x01 ] 1
            Item(Global): Unit, data= [ 0x21 0xd1 0xf0 0x00 ] 15782177
                            System: SI Linear, Unit: Centimeter^2*Gram*Seconds^-3*Ampere^-1
            Item(Global): Unit Exponent, data= [ 0x07 ] 7
                            Unit Exponent: 7
            Item(Global): Logical Minimum, data= [ 0x00 ] 0
            Item(Global): Logical Maximum, data= [ 0xfa 0x00 ] 250
            Item(Main  ): Feature, data= [ 0x02 ] 2
                            Data Variable Absolute No_Wrap Linear
                            Preferred_State No_Null_Position Non_Volatile Bitfield
            Item(Local ): Usage, data= [ 0x42 ] 66
                            Config Frequency
            Item(Global): Report Size, data= [ 0x10 ] 16
            Item(Global): Report Count, data= [ 0x01 ] 1
            Item(Global): Unit, data= [ 0x01 0xf0 ] 61441
                            System: SI Linear, Unit: Seconds^-1
            Item(Global): Unit Exponent, data= [ 0x00 ] 0
                            Unit Exponent: 0
            Item(Global): Logical Minimum, data= [ 0x00 ] 0
            Item(Global): Logical Maximum, data= [ 0x3c ] 60
            Item(Main  ): Feature, data= [ 0x02 ] 2
                            Data Variable Absolute No_Wrap Linear
                            Preferred_State No_Null_Position Non_Volatile Bitfield
            Item(Local ): Usage, data= [ 0x53 ] 83
                            Low Voltage Transfer
            Item(Global): Report Size, data= [ 0x10 ] 16
            Item(Global): Report Count, data= [ 0x01 ] 1
            Item(Global): Unit, data= [ 0x21 0xd1 0xf0 0x00 ] 15782177
                            System: SI Linear, Unit: Centimeter^2*Gram*Seconds^-3*Ampere^-1
            Item(Global): Unit Exponent, data= [ 0x07 ] 7
                            Unit Exponent: 7
            Item(Global): Logical Minimum, data= [ 0x00 ] 0
            Item(Global): Logical Maximum, data= [ 0xfa 0x00 ] 250
            Item(Main  ): Feature, data= [ 0x02 ] 2
                            Data Variable Absolute No_Wrap Linear
                            Preferred_State No_Null_Position Non_Volatile Bitfield
            Item(Local ): Usage, data= [ 0x54 ] 84
                            High Voltage Transfer
            Item(Global): Report Size, data= [ 0x10 ] 16
            Item(Global): Report Count, data= [ 0x01 ] 1
            Item(Global): Unit, data= [ 0x21 0xd1 0xf0 0x00 ] 15782177
                            System: SI Linear, Unit: Centimeter^2*Gram*Seconds^-3*Ampere^-1
            Item(Global): Unit Exponent, data= [ 0x07 ] 7
                            Unit Exponent: 7
            Item(Global): Logical Minimum, data= [ 0x00 ] 0
            Item(Global): Logical Maximum, data= [ 0xfa 0x00 ] 250
            Item(Main  ): Feature, data= [ 0x02 ] 2
                            Data Variable Absolute No_Wrap Linear
                            Preferred_State No_Null_Position Non_Volatile Bitfield
            Item(Local ): Usage, data= [ 0xfd ] 253
                            iManufacturer
            Item(Local ): Usage, data= [ 0xfe ] 254
                            iProduct
            Item(Local ): Usage, data= [ 0xff ] 255
                            iSerialNumber
            Item(Global): Report Size, data= [ 0x08 ] 8
            Item(Global): Report Count, data= [ 0x03 ] 3
            Item(Global): Logical Maximum, data= [ 0xff 0x00 ] 255
            Item(Global): Unit, data= [ 0x00 ] 0
                            System: None, Unit: (None)
            Item(Main  ): Feature, data= [ 0x00 ] 0
                            Data Array Absolute No_Wrap Linear
                            Preferred_State No_Null_Position Non_Volatile Bitfield
            Item(Main  ): End Collection, data=none
            Item(Global): Usage Page, data= [ 0x84 ] 132
                            Power Device Page
            Item(Local ): Usage, data= [ 0x1e ] 30
                            Flow
            Item(Main  ): Collection, data= [ 0x00 ] 0
                            Physical
            Item(Global): Report ID, data= [ 0x02 ] 2
            Item(Local ): Usage, data= [ 0x1f ] 31
                            Flow ID
            Item(Global): Unit, data= [ 0x00 ] 0
                            System: None, Unit: (None)
            Item(Global): Report Size, data= [ 0x04 ] 4
            Item(Global): Report Count, data= [ 0x01 ] 1
            Item(Global): Logical Minimum, data= [ 0x00 ] 0
            Item(Global): Logical Maximum, data= [ 0x0f ] 15
            Item(Global): Unit, data= [ 0x00 ] 0
                            System: None, Unit: (None)
            Item(Main  ): Feature, data= [ 0x02 ] 2
                            Data Variable Absolute No_Wrap Linear
                            Preferred_State No_Null_Position Non_Volatile Bitfield
            Item(Global): Report Count, data= [ 0x01 ] 1
            Item(Global): Report Size, data= [ 0x04 ] 4
            Item(Main  ): Feature, data= [ 0x03 ] 3
                            Constant Variable Absolute No_Wrap Linear
                            Preferred_State No_Null_Position Non_Volatile Bitfield
            Item(Local ): Usage, data= [ 0x40 ] 64
                            Config Voltage
            Item(Global): Report Size, data= [ 0x10 ] 16
            Item(Global): Report Count, data= [ 0x01 ] 1
            Item(Global): Unit, data= [ 0x21 0xd1 0xf0 0x00 ] 15782177
                            System: SI Linear, Unit: Centimeter^2*Gram*Seconds^-3*Ampere^-1
            Item(Global): Unit Exponent, data= [ 0x07 ] 7
                            Unit Exponent: 7
            Item(Global): Logical Minimum, data= [ 0x00 ] 0
            Item(Global): Logical Maximum, data= [ 0xfa 0x00 ] 250
            Item(Main  ): Feature, data= [ 0x02 ] 2
                            Data Variable Absolute No_Wrap Linear
                            Preferred_State No_Null_Position Non_Volatile Bitfield
            Item(Local ): Usage, data= [ 0x42 ] 66
                            Config Frequency
            Item(Global): Report Size, data= [ 0x10 ] 16
            Item(Global): Report Count, data= [ 0x01 ] 1
            Item(Global): Unit, data= [ 0x01 0xf0 ] 61441
                            System: SI Linear, Unit: Seconds^-1
            Item(Global): Unit Exponent, data= [ 0x00 ] 0
                            Unit Exponent: 0
            Item(Global): Logical Minimum, data= [ 0x00 ] 0
            Item(Global): Logical Maximum, data= [ 0x3c ] 60
            Item(Main  ): Feature, data= [ 0x02 ] 2
                            Data Variable Absolute No_Wrap Linear
                            Preferred_State No_Null_Position Non_Volatile Bitfield
            Item(Local ): Usage, data= [ 0x43 ] 67
                            Config Apparent Power
            Item(Global): Report Size, data= [ 0x10 ] 16
            Item(Global): Report Count, data= [ 0x01 ] 1
            Item(Global): Unit, data= [ 0x21 0xd1 ] 53537
                            System: SI Linear, Unit: Centimeter^2*Gram*Seconds^-3
            Item(Global): Unit Exponent, data= [ 0x07 ] 7
                            Unit Exponent: 7
            Item(Global): Logical Minimum, data= [ 0x00 ] 0
            Item(Global): Logical Maximum, data= [ 0xfe 0xff 0x00 0x00 ] 65534
            Item(Main  ): Feature, data= [ 0x02 ] 2
                            Data Variable Absolute No_Wrap Linear
                            Preferred_State No_Null_Position Non_Volatile Bitfield
            Item(Local ): Usage, data= [ 0x44 ] 68
                            Config Active Power
            Item(Global): Report Count, data= [ 0x01 ] 1
            Item(Global): Report Size, data= [ 0x10 ] 16
            Item(Global): Unit, data= [ 0x21 0xd1 ] 53537
                            System: SI Linear, Unit: Centimeter^2*Gram*Seconds^-3
            Item(Global): Unit Exponent, data= [ 0x07 ] 7
                            Unit Exponent: 7
            Item(Global): Logical Minimum, data= [ 0x00 ] 0
            Item(Global): Logical Maximum, data= [ 0xfe 0xff 0x00 0x00 ] 65534
            Item(Main  ): Feature, data= [ 0x02 ] 2
                            Data Variable Absolute No_Wrap Linear
                            Preferred_State No_Null_Position Non_Volatile Bitfield
            Item(Local ): Usage, data= [ 0x56 ] 86
                            Delay Before Startup
            Item(Global): Report Size, data= [ 0x18 ] 24
            Item(Global): Report Count, data= [ 0x01 ] 1
            Item(Global): Unit, data= [ 0x01 0x10 ] 4097
                            System: SI Linear, Unit: Seconds
            Item(Global): Unit Exponent, data= [ 0x00 ] 0
                            Unit Exponent: 0
            Item(Global): Logical Minimum, data= [ 0x00 ] 0
            Item(Global): Logical Maximum, data= [ 0xfe 0xff 0x00 0x00 ] 65534
            Item(Main  ): Feature, data= [ 0x02 ] 2
                            Data Variable Absolute No_Wrap Linear
                            Preferred_State No_Null_Position Non_Volatile Bitfield
            Item(Local ): Usage, data= [ 0x57 ] 87
                            Delay Before Shutdown
            Item(Global): Report Size, data= [ 0x18 ] 24
            Item(Global): Report Count, data= [ 0x01 ] 1
            Item(Global): Unit, data= [ 0x01 0x10 ] 4097
                            System: SI Linear, Unit: Seconds
            Item(Global): Unit Exponent, data= [ 0x00 ] 0
                            Unit Exponent: 0
            Item(Global): Logical Minimum, data= [ 0x00 ] 0
            Item(Global): Logical Maximum, data= [ 0xfe 0xff 0x00 0x00 ] 65534
            Item(Main  ): Feature, data= [ 0x02 ] 2
                            Data Variable Absolute No_Wrap Linear
                            Preferred_State No_Null_Position Non_Volatile Bitfield
            Item(Main  ): End Collection, data=none
            Item(Global): Usage Page, data= [ 0x84 ] 132
                            Power Device Page
            Item(Local ): Usage, data= [ 0x10 ] 16
                            Battery System
            Item(Main  ): Collection, data= [ 0x00 ] 0
                            Physical
            Item(Global): Report ID, data= [ 0x03 ] 3
            Item(Local ): Usage, data= [ 0x11 ] 17
                            Battery System ID
            Item(Global): Unit, data= [ 0x00 ] 0
                            System: None, Unit: (None)
            Item(Global): Report Size, data= [ 0x04 ] 4
            Item(Global): Report Count, data= [ 0x01 ] 1
            Item(Global): Logical Minimum, data= [ 0x00 ] 0
            Item(Global): Logical Maximum, data= [ 0x0f ] 15
            Item(Global): Unit, data= [ 0x00 ] 0
                            System: None, Unit: (None)
            Item(Main  ): Feature, data= [ 0x02 ] 2
                            Data Variable Absolute No_Wrap Linear
                            Preferred_State No_Null_Position Non_Volatile Bitfield
            Item(Global): Report Size, data= [ 0x04 ] 4
            Item(Global): Report Count, data= [ 0x01 ] 1
            Item(Main  ): Feature, data= [ 0x03 ] 3
                            Constant Variable Absolute No_Wrap Linear
                            Preferred_State No_Null_Position Non_Volatile Bitfield
            Item(Local ): Usage, data= [ 0x02 ] 2
                            Present Status
            Item(Main  ): Collection, data= [ 0x02 ] 2
                            Logical
            Item(Local ): Usage, data= [ 0x6d ] 109
                            Used
            Item(Local ): Usage, data= [ 0x61 ] 97
                            Good
            Item(Global): Report Size, data= [ 0x01 ] 1
            Item(Global): Report Count, data= [ 0x02 ] 2
            Item(Global): Logical Minimum, data= [ 0x00 ] 0
            Item(Global): Logical Maximum, data= [ 0x01 ] 1
            Item(Main  ): Feature, data= [ 0x02 ] 2
                            Data Variable Absolute No_Wrap Linear
                            Preferred_State No_Null_Position Non_Volatile Bitfield
            Item(Global): Report Size, data= [ 0x06 ] 6
            Item(Global): Report Count, data= [ 0x01 ] 1
            Item(Main  ): Feature, data= [ 0x03 ] 3
                            Constant Variable Absolute No_Wrap Linear
                            Preferred_State No_Null_Position Non_Volatile Bitfield
            Item(Main  ): End Collection, data=none
            Item(Local ): Usage, data= [ 0x30 ] 48
                            Voltage
            Item(Global): Report Size, data= [ 0x18 ] 24
            Item(Global): Report Count, data= [ 0x01 ] 1
            Item(Global): Unit, data= [ 0x21 0xd1 0xf0 0x00 ] 15782177
                            System: SI Linear, Unit: Centimeter^2*Gram*Seconds^-3*Ampere^-1
            Item(Global): Unit Exponent, data= [ 0x05 ] 5
                            Unit Exponent: 5
            Item(Global): Logical Maximum, data= [ 0xfe 0xff 0x00 0x00 ] 65534
            Item(Main  ): Feature, data= [ 0x02 ] 2
                            Data Variable Absolute No_Wrap Linear
                            Preferred_State No_Null_Position Non_Volatile Bitfield
            Item(Local ): Usage, data= [ 0x36 ] 54
                            Temperature
            Item(Global): Report Size, data= [ 0x10 ] 16
            Item(Global): Report Count, data= [ 0x01 ] 1
            Item(Global): Unit, data= [ 0x01 0x00 0x01 0x00 ] 65537
                            System: SI Linear, Unit: Kelvin
            Item(Global): Logical Maximum, data= [ 0xfe 0xff 0x00 0x00 ] 65534
            Item(Main  ): Feature, data= [ 0x02 ] 2
                            Data Variable Absolute No_Wrap Linear
                            Preferred_State No_Null_Position Non_Volatile Bitfield
            Item(Local ): Usage, data= [ 0x58 ] 88
                            Test
            Item(Global): Report Size, data= [ 0x01 ] 1
            Item(Global): Report Count, data= [ 0x06 ] 6
            Item(Global): Logical Minimum, data= [ 0x00 ] 0
            Item(Global): Logical Maximum, data= [ 0x01 ] 1
            Item(Main  ): Input, data= [ 0x02 ] 2
                            Data Variable Absolute No_Wrap Linear
                            Preferred_State No_Null_Position Non_Volatile Bitfield
            Item(Global): Report Size, data= [ 0x02 ] 2
            Item(Global): Report Count, data= [ 0x01 ] 1
            Item(Main  ): Input, data= [ 0x03 ] 3
                            Constant Variable Absolute No_Wrap Linear
                            Preferred_State No_Null_Position Non_Volatile Bitfield
            Item(Local ): Usage, data= [ 0x58 ] 88
                            Test
            Item(Global): Report Size, data= [ 0x01 ] 1
            Item(Global): Report Count, data= [ 0x04 ] 4
            Item(Global): Logical Minimum, data= [ 0x00 ] 0
            Item(Global): Logical Maximum, data= [ 0x01 ] 1
            Item(Main  ): Feature, data= [ 0x02 ] 2
                            Data Variable Absolute No_Wrap Linear
                            Preferred_State No_Null_Position Non_Volatile Bitfield
            Item(Global): Report Size, data= [ 0x04 ] 4
            Item(Global): Report Count, data= [ 0x01 ] 1
            Item(Main  ): Feature, data= [ 0x03 ] 3
                            Constant Variable Absolute No_Wrap Linear
                            Preferred_State No_Null_Position Non_Volatile Bitfield
            Item(Main  ): End Collection, data=none
            Item(Global): Usage Page, data= [ 0x84 ] 132
                            Power Device Page
            Item(Local ): Usage, data= [ 0x16 ] 22
                            Power Converter
            Item(Main  ): Collection, data= [ 0x00 ] 0
                            Physical
            Item(Global): Report ID, data= [ 0x04 ] 4
            Item(Local ): Usage, data= [ 0x17 ] 23
                            Power Converter ID
            Item(Global): Report Size, data= [ 0x04 ] 4
            Item(Global): Report Count, data= [ 0x01 ] 1
            Item(Global): Logical Minimum, data= [ 0x00 ] 0
            Item(Global): Logical Maximum, data= [ 0x0f ] 15
            Item(Global): Unit, data= [ 0x00 ] 0
                            System: None, Unit: (None)
            Item(Main  ): Input, data= [ 0x02 ] 2
                            Data Variable Absolute No_Wrap Linear
                            Preferred_State No_Null_Position Non_Volatile Bitfield
            Item(Global): Report Size, data= [ 0x04 ] 4
            Item(Global): Report Count, data= [ 0x01 ] 1
            Item(Main  ): Input, data= [ 0x03 ] 3
                            Constant Variable Absolute No_Wrap Linear
                            Preferred_State No_Null_Position Non_Volatile Bitfield
            Item(Local ): Usage, data= [ 0x1a ] 26
                            Input
            Item(Main  ): Collection, data= [ 0x00 ] 0
                            Physical
            Item(Local ): Usage, data= [ 0x1b ] 27
                            Input ID
            Item(Local ): Usage, data= [ 0x1f ] 31
                            Flow ID
            Item(Global): Report Size, data= [ 0x04 ] 4
            Item(Global): Report Count, data= [ 0x02 ] 2
            Item(Global): Logical Minimum, data= [ 0x00 ] 0
            Item(Global): Logical Maximum, data= [ 0x0f ] 15
            Item(Global): Unit, data= [ 0x00 ] 0
                            System: None, Unit: (None)
            Item(Main  ): Input, data= [ 0x02 ] 2
                            Data Variable Absolute No_Wrap Linear
                            Preferred_State No_Null_Position Non_Volatile Bitfield
            Item(Local ): Usage, data= [ 0x02 ] 2
                            Present Status
            Item(Main  ): Collection, data= [ 0x02 ] 2
                            Logical
            Item(Local ): Usage, data= [ 0x61 ] 97
                            Good
            Item(Global): Report Size, data= [ 0x01 ] 1
            Item(Global): Report Count, data= [ 0x01 ] 1
            Item(Global): Logical Minimum, data= [ 0x00 ] 0
            Item(Global): Logical Maximum, data= [ 0x01 ] 1
            Item(Main  ): Input, data= [ 0x02 ] 2
                            Data Variable Absolute No_Wrap Linear
                            Preferred_State No_Null_Position Non_Volatile Bitfield
            Item(Global): Report Size, data= [ 0x07 ] 7
            Item(Global): Report Count, data= [ 0x01 ] 1
            Item(Main  ): Input, data= [ 0x03 ] 3
                            Constant Variable Absolute No_Wrap Linear
                            Preferred_State No_Null_Position Non_Volatile Bitfield
            Item(Main  ): End Collection, data=none
            Item(Local ): Usage, data= [ 0x30 ] 48
                            Voltage
            Item(Global): Report Size, data= [ 0x10 ] 16
            Item(Global): Report Count, data= [ 0x01 ] 1
            Item(Global): Unit, data= [ 0x21 0xd1 0xf0 0x00 ] 15782177
                            System: SI Linear, Unit: Centimeter^2*Gram*Seconds^-3*Ampere^-1
            Item(Global): Unit Exponent, data= [ 0x05 ] 5
                            Unit Exponent: 5
            Item(Global): Logical Maximum, data= [ 0xfe 0xff 0x00 0x00 ] 65534
            Item(Main  ): Input, data= [ 0x02 ] 2
                            Data Variable Absolute No_Wrap Linear
                            Preferred_State No_Null_Position Non_Volatile Bitfield
            Item(Local ): Usage, data= [ 0x32 ] 50
                            Frequency
            Item(Global): Report Size, data= [ 0x10 ] 16
            Item(Global): Report Count, data= [ 0x01 ] 1
            Item(Global): Unit, data= [ 0x01 0xf0 ] 61441
                            System: SI Linear, Unit: Seconds^-1
            Item(Global): Unit Exponent, data= [ 0x05 ] 5
                            Unit Exponent: 5
            Item(Global): Logical Maximum, data= [ 0xfe 0xff 0x00 0x00 ] 65534
            Item(Main  ): Input, data= [ 0x02 ] 2
                            Data Variable Absolute No_Wrap Linear
                            Preferred_State No_Null_Position Non_Volatile Bitfield
            Item(Main  ): End Collection, data=none
            Item(Local ): Usage, data= [ 0x1c ] 28
                            Output
            Item(Main  ): Collection, data= [ 0x00 ] 0
                            Physical
            Item(Global): Report ID, data= [ 0x05 ] 5
            Item(Local ): Usage, data= [ 0x1d ] 29
                            Output ID
            Item(Local ): Usage, data= [ 0x1f ] 31
                            Flow ID
            Item(Global): Report Size, data= [ 0x04 ] 4
            Item(Global): Report Count, data= [ 0x02 ] 2
            Item(Global): Logical Minimum, data= [ 0x00 ] 0
            Item(Global): Logical Maximum, data= [ 0x0f ] 15
            Item(Global): Unit, data= [ 0x00 ] 0
                            System: None, Unit: (None)
            Item(Main  ): Input, data= [ 0x02 ] 2
                            Data Variable Absolute No_Wrap Linear
                            Preferred_State No_Null_Position Non_Volatile Bitfield
            Item(Local ): Usage, data= [ 0x30 ] 48
                            Voltage
            Item(Global): Report Size, data= [ 0x10 ] 16
            Item(Global): Report Count, data= [ 0x01 ] 1
            Item(Global): Unit, data= [ 0x21 0xd1 0xf0 0x00 ] 15782177
                            System: SI Linear, Unit: Centimeter^2*Gram*Seconds^-3*Ampere^-1
            Item(Global): Unit Exponent, data= [ 0x05 ] 5
                            Unit Exponent: 5
            Item(Global): Logical Maximum, data= [ 0xfe 0xff 0x00 0x00 ] 65534
            Item(Main  ): Input, data= [ 0x02 ] 2
                            Data Variable Absolute No_Wrap Linear
                            Preferred_State No_Null_Position Non_Volatile Bitfield
            Item(Local ): Usage, data= [ 0x32 ] 50
                            Frequency
            Item(Global): Report Size, data= [ 0x10 ] 16
            Item(Global): Report Count, data= [ 0x01 ] 1
            Item(Global): Unit, data= [ 0x01 0xf0 ] 61441
                            System: SI Linear, Unit: Seconds^-1
            Item(Global): Unit Exponent, data= [ 0x05 ] 5
                            Unit Exponent: 5
            Item(Global): Logical Maximum, data= [ 0xfe 0xff 0x00 0x00 ] 65534
            Item(Main  ): Input, data= [ 0x02 ] 2
                            Data Variable Absolute No_Wrap Linear
                            Preferred_State No_Null_Position Non_Volatile Bitfield
            Item(Local ): Usage, data= [ 0x35 ] 53
                            Percent Load
            Item(Global): Report Size, data= [ 0x10 ] 16
            Item(Global): Report Count, data= [ 0x01 ] 1
            Item(Global): Logical Minimum, data= [ 0x00 ] 0
            Item(Global): Logical Maximum, data= [ 0xff 0x00 ] 255
            Item(Main  ): Input, data= [ 0x02 ] 2
                            Data Variable Absolute No_Wrap Linear
                            Preferred_State No_Null_Position Non_Volatile Bitfield
            Item(Local ): Usage, data= [ 0x02 ] 2
                            Present Status
            Item(Main  ): Collection, data= [ 0x02 ] 2
                            Logical
            Item(Local ): Usage, data= [ 0x65 ] 101
                            Overload
            Item(Local ): Usage, data= [ 0x6e ] 110
                            Boost
            Item(Local ): Usage, data= [ 0x6f ] 111
                            Buck
            Item(Global): Report Size, data= [ 0x01 ] 1
            Item(Global): Report Count, data= [ 0x03 ] 3
            Item(Global): Logical Minimum, data= [ 0x00 ] 0
            Item(Global): Logical Maximum, data= [ 0x01 ] 1
            Item(Global): Unit, data= [ 0x00 ] 0
                            System: None, Unit: (None)
            Item(Main  ): Input, data= [ 0x02 ] 2
                            Data Variable Absolute No_Wrap Linear
                            Preferred_State No_Null_Position Non_Volatile Bitfield
            Item(Global): Report Size, data= [ 0x05 ] 5
            Item(Global): Report Count, data= [ 0x01 ] 1
            Item(Main  ): Input, data= [ 0x03 ] 3
                            Constant Variable Absolute No_Wrap Linear
                            Preferred_State No_Null_Position Non_Volatile Bitfield
            Item(Main  ): End Collection, data=none
            Item(Main  ): End Collection, data=none
            Item(Main  ): End Collection, data=none
            Item(Main  ): End Collection, data=none
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x81  EP 1 IN
        bmAttributes            3
          Transfer Type            Interrupt
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0008  1x 8 bytes
        bInterval              10
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x02  EP 2 OUT
        bmAttributes            3
          Transfer Type            Interrupt
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0008  1x 8 bytes
        bInterval              10
Device Status:     0x0000
  (Bus Powered)

$ sudo -u nut /usr/lib/nut/nutdrv_qx -a serioux -DDDD
Network UPS Tools - Generic Q* USB/Serial driver 0.32 (2.8.0)
USB communication driver (libusb 0.1) 0.43
   0.000000     [D1] debug level is '4'
   0.000259     [D1] upsdrv_initups...
   0.188265     [D3] usb_busses=0x55bff0680ae0
   0.188327     [D2] Checking device (1D6B/0003) (002/001)
   0.215299     [D1] libusb_open get iManufacturer failed, retrying...
   0.215334     [D1] libusb_open get iManufacturer failed, retrying...
   0.215341     [D1] libusb_open get iManufacturer failed, retrying...
   0.215350     [D1] libusb_open get iProduct failed, retrying...
   0.215360     [D1] libusb_open get iProduct failed, retrying...
   0.215372     [D1] libusb_open get iProduct failed, retrying...
   0.215386     [D1] libusb_open get iSerialNumber failed, retrying...
   0.215401     [D1] libusb_open get iSerialNumber failed, retrying...
   0.215412     [D1] libusb_open get iSerialNumber failed, retrying...
   0.215424     [D2] - VendorID: 1d6b
   0.215433     [D2] - ProductID: 0003
   0.215441     [D2] - Manufacturer: unknown
   0.215449     [D2] - Product: unknown
   0.215457     [D2] - Serial Number: unknown
   0.215464     [D2] - Bus: 002
   0.215472     [D2] - Device: 001
   0.215479     [D2] - Device release number: 0602
   0.215488     [D2] Trying to match device
   0.215494     [D3] match_function_regex: matching a device...
   0.215509     [D2] match_function_regex: failed match of VendorID: 1d6b
   0.215524     [D2] Device does not match - skipping
   0.215663     [D2] Checking device (0001/0000) (001/008)
   0.216845     [D2] - VendorID: 0001
   0.216857     [D2] - ProductID: 0000
   0.216862     [D2] - Manufacturer: unknown
   0.216869     [D2] - Product: MEC0003
   0.216875     [D2] - Serial Number: unknown
   0.216882     [D2] - Bus: 001
   0.216887     [D2] - Device: 008
   0.216898     [D2] - Device release number: 0100
   0.216908     [D2] Trying to match device
   0.216913     [D3] match_function_regex: matching a device...
   0.216982     [D2] Device matches
   0.217019     [D3] nut_usb_set_altinterface: skipped usb_set_altinterface(udev, 0)
   0.217051     [D2] Skipping protocol Voltronic 0.06
   0.217065     [D2] Skipping protocol Voltronic-QS 0.07
   0.217071     [D2] Skipping protocol Voltronic-QS-Hex 0.10
   0.217087     [D2] Skipping protocol Mustek 0.07
   0.217097     [D2] Skipping protocol Megatec/old 0.07
   0.217105     [D2] Skipping protocol BestUPS 0.06
   0.217130     [D2] Skipping protocol Mecer 0.07
   0.217157     [D3] send: Q1
   0.217176     [D4] command index: 0x03
   0.217190     [D3] asking for: 00
   0.232021     [D3] read: (000.0 000.0 000.0 000 00.0 0.00 00.0 00000000
   0.232073     Using protocol: Megatec 0.06
   0.232093     [D2] blazer_initups: skipping device.mfr
   0.232105     [D2] blazer_initups: skipping device.model
   0.232111     [D2] blazer_initups: skipping ups.firmware
   0.232126     [D1] upsdrv_initinfo...
   0.232138     [D3] send: Q1
   0.232153     [D4] command index: 0x03
   0.232162     [D3] asking for: 0D
   0.236530     [D3] read: (000.0 000.0 000.0 000 00.0 0.00 00.0 00000000
   0.236646     [D3] send: F
   0.236660     [D4] command index: 0x0d
   0.236667     [D3] asking for: 03
   0.241168     [D3] read: #000.0 0.0 00.00 00.0
   0.241336     No values for battery high/low voltages
   0.241367     Using 'guesstimation' (low: 0.000000, high: 0.000000)!
   0.241384     Battery runtime will not be calculated (runtimecal not set)
   0.241419     [D1] upsdrv_updateinfo...
   0.241446     [D1] Quick update...
   0.241470     [D3] send: Q1
   0.241507     [D4] command index: 0x03
   0.241533     [D3] asking for: 0C
   0.246701     [D3] read: (000.0 000.0 000.0 000 00.0 0.00 00.0 00000000
   0.246989     [D2] dstate_init: sock /run/nut/nutdrv_qx-serioux open on fd 5
   0.247031     [D1] upsdrv_updateinfo...
   0.247051     [D1] Quick update...
   0.247116     [D3] send: Q1
   0.247143     [D4] command index: 0x03
   0.247157     [D3] asking for: 0D
   0.251868     [D3] read: (000.0 000.0 000.0 000 00.0 0.00 00.0 00000000
   2.249221     [D1] upsdrv_updateinfo...
   2.249286     [D1] Quick update...
   2.249311     [D3] send: Q1
   2.249334     [D4] command index: 0x03
   2.252404     [D3] read: (000.0 000.0 000.0 000 00.0 0.00 00.0 00000000
   4.251099     [D1] upsdrv_updateinfo...
   4.251163     [D1] Quick update...
   4.251193     [D3] send: Q1
   4.251214     [D4] command index: 0x03
   4.251239     [D3] asking for: 0C
   4.256555     [D3] read: (000.0 000.0 000.0 000 00.0 0.00 00.0 00000000
^C

[starting upsmart, exiting]

$ sudo -u nut /usr/lib/nut/nutdrv_qx -a serioux -DDDD
Network UPS Tools - Generic Q* USB/Serial driver 0.32 (2.8.0)
USB communication driver (libusb 0.1) 0.43
   0.000000     [D1] debug level is '4'
   0.000252     [D1] upsdrv_initups...
   0.187904     [D3] usb_busses=0x55b81d3c9ae0
   0.187956     [D2] Checking device (1D6B/0003) (002/001)
   0.215047     [D1] libusb_open get iManufacturer failed, retrying...
   0.215104     [D1] libusb_open get iManufacturer failed, retrying...
   0.215121     [D1] libusb_open get iManufacturer failed, retrying...
   0.215143     [D1] libusb_open get iProduct failed, retrying...
   0.215197     [D1] libusb_open get iProduct failed, retrying...
   0.215219     [D1] libusb_open get iProduct failed, retrying...
   0.215252     [D1] libusb_open get iSerialNumber failed, retrying...
   0.215288     [D1] libusb_open get iSerialNumber failed, retrying...
   0.215322     [D1] libusb_open get iSerialNumber failed, retrying...
   0.215334     [D2] - VendorID: 1d6b
   0.215347     [D2] - ProductID: 0003
   0.215359     [D2] - Manufacturer: unknown
   0.215369     [D2] - Product: unknown
   0.215383     [D2] - Serial Number: unknown
   0.215394     [D2] - Bus: 002
   0.215403     [D2] - Device: 001
   0.215415     [D2] - Device release number: 0602
   0.215428     [D2] Trying to match device
   0.215438     [D3] match_function_regex: matching a device...
   0.215455     [D2] match_function_regex: failed match of VendorID: 1d6b
   0.215465     [D2] Device does not match - skipping
   0.215489     [D2] Checking device (0001/0000) (001/008)
   0.216915     [D2] - VendorID: 0001
   0.216969     [D2] - ProductID: 0000
   0.216987     [D2] - Manufacturer: unknown
   0.217003     [D2] - Product: MEC0003
   0.217028     [D2] - Serial Number: unknown
   0.217045     [D2] - Bus: 001
   0.217070     [D2] - Device: 008
   0.217094     [D2] - Device release number: 0100
   0.217110     [D2] Trying to match device
   0.217130     [D3] match_function_regex: matching a device...
   0.217280     [D2] Device matches
   0.217352     [D3] nut_usb_set_altinterface: skipped usb_set_altinterface(udev, 0)
   0.217412     [D2] Skipping protocol Voltronic 0.06
   0.217454     [D2] Skipping protocol Voltronic-QS 0.07
   0.217502     [D2] Skipping protocol Voltronic-QS-Hex 0.10
   0.217522     [D2] Skipping protocol Mustek 0.07
   0.217539     [D2] Skipping protocol Megatec/old 0.07
   0.217570     [D2] Skipping protocol BestUPS 0.06
   0.217609     [D2] Skipping protocol Mecer 0.07
   0.217633     [D3] send: Q1
   0.217654     [D4] command index: 0x03
   0.217677     [D3] asking for: 00
   0.232592     [D3] read: (235.0 000.0 236.0 000 50.1 13.7 29.0 00001000
   0.232680     Using protocol: Megatec 0.06
   0.232712     [D2] blazer_initups: skipping device.mfr
   0.232732     [D2] blazer_initups: skipping device.model
   0.232758     [D2] blazer_initups: skipping ups.firmware
   0.232791     [D1] upsdrv_initinfo...
   0.232820     [D3] send: Q1
   0.232841     [D4] command index: 0x03
   0.232859     [D3] asking for: 0D
   0.237399     [D3] read: (235.0 000.0 236.0 000 50.1 13.7 29.0 00001000
   0.237623     [D3] send: F
   0.237647     [D4] command index: 0x0d
   0.237665     [D3] asking for: 03
   0.242177     [D3] read: #   .   .  12.00   .
   0.242371     No values for battery high/low voltages
   0.242406     Using 'guesstimation' (low: 10.400000, high: 13.000000)!
   0.242440     Battery runtime will not be calculated (runtimecal not set)
   0.242475     [D1] upsdrv_updateinfo...
   0.242492     [D1] Quick update...
   0.242512     [D3] send: Q1
   0.242534     [D4] command index: 0x03
   0.242572     [D3] asking for: 0C
   0.247754     [D3] read: (235.0 000.0 236.0 000 50.1 13.7 29.0 00001000
   0.248022     [D2] dstate_init: sock /run/nut/nutdrv_qx-serioux open on fd 5
   0.248102     [D1] upsdrv_updateinfo...
   0.248122     [D1] Quick update...
   0.248147     [D3] send: Q1
   0.248174     [D4] command index: 0x03
   0.248193     [D3] asking for: 0D
   0.252589     [D3] read: (235.0 000.0 236.0 000 50.1 13.7 29.0 00001000
   2.250333     [D1] upsdrv_updateinfo...
   2.250393     [D1] Quick update...
   2.250424     [D3] send: Q1
   2.250460     [D4] command index: 0x03
   2.253433     [D3] read: (235.0 000.0 236.0 000 50.1 13.7 29.0 00001000
^C

[mailinglists35]

mec0003-pcaps.zip

[mailinglists35]

also, upscmd beeper.toggle doesn't work. but on upsmart I can toggle the beeper

pcaps attached during beeper command

[mailinglists35]

beeper-pcaps.zip

[mailinglists35]

upsmart also produces a debug log:

$ cat DebugLog20231129_USB.txt 
Date/Time,State,Command
2023.11.29 22:03:55,Send,80 06 03 03 09 04 00 66 
2023.11.29 22:03:55,Receive,(232.0 000.0 232.0 000 49.9 13.6 29.0 00001000
2023.11.29 22:03:54,Send,80 06 0d 03 09 04 00 66 
2023.11.29 22:03:54,Receive,#   .   .  12.00   . 
2023.11.29 22:03:53,Send,80 06 03 03 09 04 00 66 
2023.11.29 22:03:53,Receive,(232.0 000.0 232.0 000 49.7 13.6 29.0 00001000
2023.11.29 22:03:52,Send,80 06 03 03 09 04 00 66 
2023.11.29 22:03:52,Receive,(232.0 000.0 232.0 000 49.9 13.6 29.0 00001000
2023.11.29 22:03:51,Send,80 06 03 03 09 04 00 66 
2023.11.29 22:03:51,Receive,(232.0 000.0 234.0 000 49.8 13.6 29.0 00001000
2023.11.29 22:03:50,Send,80 06 0c 03 09 04 00 66 
2023.11.29 22:03:50,Receive,#                           V3.8      
2023.11.29 22:03:49,Send,80 06 03 03 09 04 00 66 
2023.11.29 22:03:49,Receive,(232.0 000.0 232.0 000 50.0 13.6 29.0 00001000
2023.11.29 22:03:48,Send,80 06 0d 03 09 04 00 66 
2023.11.29 22:03:48,Receive,#   .   .  12.00   . 
2023.11.29 22:03:47,Send,80 06 07 03 09 04 00 66 
2023.11.29 22:03:47,Receive,UPS No Ack
2023.11.29 22:03:46,Send,80 06 03 03 09 04 00 66 
2023.11.29 22:03:46,Receive,(231.0 000.0 232.0 000 49.7 13.6 29.0 00001000
2023.11.29 22:03:45,Send,80 06 03 03 09 04 00 66 
2023.11.29 22:03:45,Receive,(232.0 000.0 234.0 000 49.9 13.6 29.0 00001000
2023.11.29 22:03:44,Send,80 06 03 03 09 04 00 66 
2023.11.29 22:03:44,Receive,(231.0 000.0 233.0 000 49.8 13.6 29.0 00001000
2023.11.29 22:03:43,Send,80 06 0c 03 09 04 00 66 
2023.11.29 22:03:43,Receive,#                           V3.8      
2023.11.29 22:03:42,Send,80 06 03 03 09 04 00 66 
2023.11.29 22:03:42,Receive,(231.0 000.0 232.0 000 49.6 13.6 29.0 00001000
2023.11.29 22:03:41,Send,80 06 0d 03 09 04 00 66 
2023.11.29 22:03:41,Receive,#   .   .  12.00   . 
2023.11.29 22:03:40,Send,80 06 03 03 09 04 00 66 
2023.11.29 22:03:40,Receive,(235.0 000.0 236.0 000 50.1 13.7 29.0 00001000

[mailinglists35]

maybe you manage to find which one is the beeper (they call it buzzer)

$ cat DebugLog20231129_USB.txt 
Date/Time,State,Command
2023.11.29 22:06:49,Send,80 06 03 03 09 04 00 66 
2023.11.29 22:06:49,Receive,(232.0 000.0 234.0 000 50.0 13.6 29.0 00001000
2023.11.29 22:06:48,Send,80 06 0d 03 09 04 00 66 
2023.11.29 22:06:48,Receive,#   .   .  12.00   . 
2023.11.29 22:06:47,Send,80 06 03 03 09 04 00 66 
2023.11.29 22:06:47,Receive,(234.0 000.0 234.0 000 49.9 13.6 29.0 00001000
2023.11.29 22:06:46,Send,80 06 03 03 09 04 00 66 
2023.11.29 22:06:46,Receive,(233.0 000.0 235.0 000 49.8 13.6 29.0 00001000
2023.11.29 22:06:45,Send,80 06 03 03 09 04 00 66 
2023.11.29 22:06:45,Receive,(232.0 000.0 234.0 000 49.9 13.6 29.0 00001000
2023.11.29 22:06:44,Send,80 06 0c 03 09 04 00 66 
2023.11.29 22:06:44,Receive,#                           V3.8      
2023.11.29 22:06:43,Send,80 06 03 03 09 04 00 66 
2023.11.29 22:06:43,Receive,(231.0 000.0 233.0 000 50.0 13.6 29.0 00001000
2023.11.29 22:06:42,Send,80 06 0d 03 09 04 00 66 
2023.11.29 22:06:42,Receive,#   .   .  12.00   . 
2023.11.29 22:06:41,Send,80 06 03 03 09 04 00 66 
2023.11.29 22:06:41,Receive,(232.0 000.0 233.0 000 49.8 13.6 29.0 00001000
2023.11.29 22:06:40,Send,80 06 07 03 09 04 00 66 
2023.11.29 22:06:40,Receive,UPS No Ack
2023.11.29 22:06:39,Send,80 06 03 03 09 04 00 66 
2023.11.29 22:06:39,Receive,(232.0 000.0 233.0 000 49.8 13.6 29.0 00001000
2023.11.29 22:06:38,Send,80 06 03 03 09 04 00 66 
2023.11.29 22:06:38,Receive,(232.0 000.0 234.0 000 49.9 13.6 29.0 00001000
2023.11.29 22:06:37,Send,80 06 0c 03 09 04 00 66 
2023.11.29 22:06:37,Receive,#                           V3.8      
2023.11.29 22:06:36,Send,80 06 03 03 09 04 00 66 
2023.11.29 22:06:36,Receive,(232.0 000.0 234.0 000 49.9 13.6 29.0 00001000
2023.11.29 22:06:35,Send,80 06 0d 03 09 04 00 66 
2023.11.29 22:06:35,Receive,#   .   .  12.00   . 
2023.11.29 22:06:34,Send,80 06 03 03 09 04 00 66 
2023.11.29 22:06:34,Receive,(232.0 000.0 233.0 000 50.0 13.6 29.0 00001000
2023.11.29 22:06:33,Send,80 06 03 03 09 04 00 66 
2023.11.29 22:06:33,Receive,(232.0 000.0 235.0 000 49.9 13.6 29.0 00001000
2023.11.29 22:06:32,Send,80 06 03 03 09 04 00 66 
2023.11.29 22:06:32,Receive,(231.0 000.0 232.0 000 49.9 13.6 29.0 00001000
2023.11.29 22:06:31,Send,80 06 0c 03 09 04 00 66 
2023.11.29 22:06:31,Receive,#                           V3.8      
2023.11.29 22:06:30,Send,80 06 03 03 09 04 00 66 
2023.11.29 22:06:30,Receive,(231.0 000.0 232.0 000 50.0 13.6 29.0 00001000
2023.11.29 22:06:29,Send,80 06 0d 03 09 04 00 66 
2023.11.29 22:06:29,Receive,#   .   .  12.00   . 
2023.11.29 22:06:28,Send,80 06 03 03 09 04 00 66 
2023.11.29 22:06:28,Receive,(231.0 000.0 231.0 000 49.7 13.6 29.0 00001000
2023.11.29 22:06:27,Send,80 06 03 03 09 04 00 66 
2023.11.29 22:06:27,Receive,(231.0 000.0 232.0 000 50.0 13.6 29.0 00001000
2023.11.29 22:06:26,Send,80 06 03 03 09 04 00 66 
2023.11.29 22:06:26,Receive,(231.0 000.0 231.0 000 49.9 13.6 29.0 00001000
2023.11.29 22:06:25,Send,80 06 0c 03 09 04 00 66 
2023.11.29 22:06:25,Receive,#                           V3.8      
2023.11.29 22:06:24,Send,80 06 03 03 09 04 00 66 
2023.11.29 22:06:24,Receive,(230.0 000.0 231.0 000 49.8 13.6 29.0 00001000
2023.11.29 22:06:23,Send,80 06 0d 03 09 04 00 66 
2023.11.29 22:06:23,Receive,#   .   .  12.00   . 
2023.11.29 22:06:22,Send,80 06 03 03 09 04 00 66 
2023.11.29 22:06:22,Receive,(230.0 000.0 231.0 000 49.9 13.6 29.0 00001000
2023.11.29 22:06:21,Send,80 06 03 03 09 04 00 66 
2023.11.29 22:06:21,Receive,(231.0 000.0 232.0 000 49.7 13.6 29.0 00001000
2023.11.29 22:06:20,Send,80 06 03 03 09 04 00 66 
2023.11.29 22:06:20,Receive,*231.0 000.0 232.0 000 50.0 13.6 29.0 00001000
2023.11.29 22:06:19,Send,80 06 0c 03 09 04 00 66 
2023.11.29 22:06:19,Receive,#                           V3.8      
2023.11.29 22:06:18,Send,80 06 03 03 09 04 00 66 
2023.11.29 22:06:18,Receive,(231.0 000.0 232.0 000 49.7 13.6 29.0 00001000
2023.11.29 22:06:17,Send,80 06 0d 03 09 04 00 66 
2023.11.29 22:06:17,Receive,#   .   .  12.00   . 
2023.11.29 22:06:16,Send,80 06 03 03 09 04 00 66 
2023.11.29 22:06:16,Receive,(231.0 000.0 232.0 000 49.7 13.6 29.0 00001000

[jimklimov]

Thank you very much for the detailed report. There were a couple of mentions over the years that some devices needed an initialization by vendor SW to become visible to NUT (though I had the impression that once per lifetime was enough in those cases), but I don't remember any report on it as detailed as yours!

I've posted on the nut-upsdev mailing list to bring some more attention to this ticket, hopefully someone with Qx drivers' programming experience would chime in and be more relevant here than myself.

[mailinglists35]

additional info: it seems all readings done by nut after starting/stopping vendor sw are the same values, as if I'm reading from a cache. so the command that the UPSmart issues it must be done at each reading, or else we will read not fresh data.

[mailinglists35]

This is another debug log from the vendor. I notice it cycles the same commands, I think on the third field it differs to 03, 0c, 0d

DebugLog20231130_USB.txt

[mailinglists35]

Hi,
Did anyone respond to your mailing list message?