Re: I need advice with UPS connection.

[Hgntkwis@vfemail.net]

On Tue, 10 Nov 2020 16:55:11 -0500
Alan Stern <stern@rowland.harvard.edu> wrote:
> On Mon, Nov 09, 2020 at 10:00:00PM -0500, David Niklas wrote:
> > Hello,
> > I'm running Linux Kernel 5.8.X on a Devuan (Debian) system. I
> > connected my UPS (OPTI-UPS Thunder Shield TS2250B) via USB cable and
> > got:
> > 
> > [739229.454592][T25544] usb 9-4: new low-speed USB device number 2
> > using ohci-pci [739229.635343][T25544] usb 9-4: config index 0
> > descriptor too short (expected 9, got 0) [739229.635348][T25544] usb
> > 9-4: can't read configurations, error -22 [739229.791290][T25544] usb
> > 9-4: new low-speed USB device number 3 using ohci-pci
> > [739229.982414][T25544] usb 9-4: New USB device found, idVendor=0d9f,
> > idProduct=0004, bcdDevice= 0.02 [739229.982421][T25544] usb 9-4: New
> > USB device strings: Mfr=3, Product=1, SerialNumber=2
> > [739229.982426][T25544] usb 9-4: Product: HID UPS Battery
> > [739229.982430][T25544] usb 9-4: Manufacturer: POWERCOM Co.,LTD
> > [739229.982433][T25544] usb 9-4: SerialNumber: 004-0D9F-000
> > [739230.027616][T25544] hid-generic 0003:0D9F:0004.0004:
> > hiddev1,hidraw2: USB HID v1.00 Device [POWERCOM Co.,LTD HID UPS
> > Battery] on usb-0000:00:16.0-4/input0 [739233.484723][T25544] usb
> > 9-4: USB disconnect, device number 3 [739236.257951][T25544] usb 9-4:
> > new low-speed USB device number 4 using ohci-pci
> > [739236.475434][T25544] usb 9-4: New USB device found, idVendor=0d9f,
> > idProduct=0004, bcdDevice= 0.02 [739236.475442][T25544] usb 9-4: New
> > USB device strings: Mfr=3, Product=1, SerialNumber=2
> > [739236.520783][T25544] hid-generic 0003:0D9F:0004.0005:
> > hiddev1,hidraw2: USB HID v1.00 Device [HID 0d9f:0004] on
> > usb-0000:00:16.0-4/input0 [739239.933809][T25544] usb 9-4: USB
> > disconnect, device number 4 [739242.701322][T25544] usb 9-4: new
> > low-speed USB device number 5 using ohci-pci [739242.880035][T25544]
> > usb 9-4: device descriptor read/all, error -62
> > [739243.034561][T25544] usb 9-4: new low-speed USB device number 6
> > using ohci-pci [739243.252040][T25544] usb 9-4: New USB device found,
> > idVendor=0d9f, idProduct=0004, bcdDevice= 0.02
> > [739243.252042][T25544] usb 9-4: New USB device strings: Mfr=3,
> > Product=1, SerialNumber=2 [739243.296444][T25544] hid-generic
> > 0003:0D9F:0004.0006: hiddev1,hidraw2: USB HID v1.00 Device [HID
> > 0d9f:0004] on usb-0000:00:16.0-4/input0 [739246.720152][T25544] usb
> > 9-4: USB disconnect, device number 6 [739249.491330][T13473] usb 9-4:
> > new low-speed USB device number 7 using ohci-pci
> > [739249.718707][T13473] usb 9-4: New USB device found, idVendor=0d9f,
> > idProduct=0004, bcdDevice= 0.02 [739249.718709][T13473] usb 9-4: New
> > USB device strings: Mfr=3, Product=1, SerialNumber=2
> > [739249.718710][T13473] usb 9-4: Product: HID UPS Battery
> > [739249.718711][T13473] usb 9-4: Manufacturer: POWERCOM Co.,LTD
> > [739249.718712][T13473] usb 9-4: SerialNumber: 004-0D9F-000
> > [739249.751173][T13473] hid-generic 0003:0D9F:0004.0007: unknown main
> > item tag 0x0 <snip class="spam-repeated-previous-message">
> > [739250.162392][T13473] hid-generic 0003:0D9F:0004.0007: unknown main
> > item tag 0x0 [739250.162813][T13473] hid-generic 0003:0D9F:0004.0007:
> > hidraw2: USB HID v1.00 Device [POWERCOM Co.,LTD HID UPS Battery] on
> > usb-0000:00:16.0-4/input0 [739253.165518][T13473] usb 9-4: USB
> > disconnect, device number 7 ...
> > 
> > 
> > I'd appreciate any advice trying to get my UPS to stay connected and
> > not spam the kernel log. The UPS is about 1 year old. It's working
> > fine. I just want to use nut or apcupsd with it.
> > 
> > Thanks,
> > David
>
> +Jiri, Ben, and linux-input
> 

I googled Jiri and ben but I don't see anything promising. Can you give
me more search terms or absolute URLs?

Also, in pointing me to the linux-input subsystem, are you recommending
me to write a driver or something else?

Thanks,
David