HP N54L baremetal Xpenology

[gnat8]

Hi,
I'm running Xpenology on HP N54L, platform broadwellnk/dsm-7.2
I'm trying to get UB ports working.
I followed the guide https://mariushosting.com/synology-how-to-add-usb-support-on-dsm-7/ and then I follow up with manual install using the guide in this repository.
I manage to get working a memory USB stick (on three different usb ports out of 6 available) but the system does not recognise it everytime (using lsusb from terminal).
My real problem is to get working a serial USB adapter (succefully used on Raspberry and usually recognised as cp210x).
I plug it but it is not listed in lsusb.
FYI following your guide, after "/usr/local/etc/rc.d/usb-serial-drivers.sh start", I didn't get any reply from the terminal.
I'm newbie of linux console. I need some teach to do somekind of debug of what is happening.

Any chance to make it work?
Thank you!

[robertklep]

A device not showing in the output of lsusb is a hardware problem. Try using a USB extension cable between your computer and the device.

[gnat8]

Actually I have it on a 10 cm cable extension and I tried also with a passive USB hub. No difference.

[robertklep]

Possibly something else then, but it has nothing to do with missing drivers I'm afraid.

[gnat8]

Is it normal that only ch341 and pl2303 are loaded?

[robertklep]

I would expect the cp210x driver to be loaded as well. You can manually load it to see why it won't load:

sudo insmod /lib/modules/cp210x.ko

However, the driver not being loaded has no bearing on the device not showing up in the output of lsusb, which is to show which USB devices are attached to your machine. A device needs to show up there before a driver be attached to it.

[gnat8]

It replies "could not insert module, invalid module format".
In the meantime I'm trying different usb cable, powered hubs, bios option.
Many problems to be solved here..

[robertklep]

Try downloading the module again, sounds like it didn't download correctly.

In any case, I can't fix hardware issues 🤷🏼‍♂️

[gnat8]

Other than HW issue, I'm still not able to load the module.
I removed old cp210x.ko, and reloaded w/o positive result.
Everything done after 'sudo su' command

[robertklep]

You're not downloading from the correct URL, it should be this:
https://github.com/robertklep/dsm7-usb-serial-drivers/raw/refs/heads/main/modules/broadwellnk/dsm-7.2/cp210x.ko