When running my rig with KStars (everything running on a 4Gb RPi4 / Raspbian)
I get a lot of these messages when checking 'dmesg'

[15259.842391] usb 2-1: reset SuperSpeed Gen 1 USB device number 3 using xhci_hcd

I might get hundreds over several hours.
The system works well, but there are times it slows down.
I suspect that I get these when my moonlight focuser is running, but am not positive.
I don't know how to know what usb 2-1 is.

USB connections:
I have the moonlight v2 controller and Atlas Pro mount directly plugged in to a RPi usb2 ports.
Both devices get external power.
I have an ASI1600 plugged into the RPi's usb3 port, the ASI1600 is powered.
A powered usb3 hub is plugged in to the other usb3 port, and it has a memory stick and a WiFi adapter connected to it.
A guide camera and a filter wheel are plugged in to the ASI 1600's hub (and as I said, the ASI 1600 is powered separately).

No idea how to debug this, so I've let it go (as things do work), but I guess some day I'll pay.

Any suggestions?
Hy

PS Heres lsusb's output:

> lsusb
Bus 002 Device 004: ID 0781:5588 SanDisk Corp.
Bus 002 Device 002: ID 05e3:0617 Genesys Logic, Inc.
Bus 002 Device 003: ID 03c3:1604
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 008: ID 0403:6001 Future Technology Devices International, Ltd FT232 Serial (UART) IC
Bus 001 Device 006: ID 0403:6001 Future Technology Devices International, Ltd FT232 Serial (UART) IC
Bus 001 Device 009: ID 0bda:8176 Realtek Semiconductor Corp. RTL8188CUS 802.11n WLAN Adapter
Bus 001 Device 004: ID 05e3:0610 Genesys Logic, Inc. 4-port hub
Bus 001 Device 007: ID 03c3:1f01
Bus 001 Device 010: ID 1618:0921
Bus 001 Device 003: ID 04b4:6572 Cypress Semiconductor Corp.
Bus 001 Device 002: ID 2109:3431 VIA Labs, Inc. Hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

Does this relate? github.com/indilib/indi/issues/950

-Eric