USB storage setup - working but "Class=" unspecified - Problem?

Hi,

I'm following the guide for Using Storage Devices. I seem to be able to have my USB drive mounted just fine (manually for right now), but I see that in part of the documentation that I should see a device with "Class=Mass Storage," but I don't see that. I see "Class=," instead. I've plugged in multiple usb drives and see the same result.

The specific part of the instructions I'm referring to are:

  1. Now connect your USB disk/stick and list your connected devices with a command from these usbutils:

lsusb -t

...

In step 5, verify that the output prints no error and has at least one output line for root_hub and Mass Storage and that each Driver= lists a driver name. If not, then refer to the Installing USB Drivers for more suggestions on drivers.

Here's my output:

root@OpenWrt:~# lsusb -t
/:  Bus 02.Port 1: Dev 1, Class=root_hub, Driver=xhci-mtk/1p, 5000M
    |__ Port 1: Dev 2, If 0, Class=, Driver=usb-storage, 5000M
/:  Bus 01.Port 1: Dev 1, Class=root_hub, Driver=xhci-mtk/2p, 480M

QUESTION: Is it going to be a problem that "Class=" is not being populated?

I've mounted multiple USB3 drives and I can list the files, but I'm wondering if I need to fix this before moving forward with my plan for a samba setup. I couldn't find any other posts about Class not being populated.

MORE
I ran through the troubleshooting guide as suggested in the documentation.

My dmesg seems fine:

[   92.742837] usb 2-1: new SuperSpeed USB device number 2 using xhci-mtk
[   92.785585] usb-storage 2-1:1.0: USB Mass Storage device detected
[   92.798980] scsi host0: usb-storage 2-1:1.0
[   93.873577] scsi 0:0:0:0: Direct-Access     SanDisk  Extreme Pro      0    PQ: 0 ANSI: 6
[   93.893325] sd 0:0:0:0: [sda] 250085376 512-byte logical blocks: (128 GB/119 GiB)
[   93.908750] sd 0:0:0:0: [sda] Write Protect is off
[   93.918332] sd 0:0:0:0: [sda] Mode Sense: 43 00 00 00
[   93.928903] sd 0:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
[   93.950038]  sda:
[   93.957645] sd 0:0:0:0: [sda] Attached SCSI removable disk

lsusb output:

root@OpenWrt:~# lsusb
Bus 001 Device 001: ID 1d6b:0002 Linux 5.15.162 xhci-hcd xHCI Host Controller
Bus 002 Device 002: ID 0781:5588 SanDisk USB Extreme Pro
Bus 002 Device 001: ID 1d6b:0003 Linux 5.15.162 xhci-hcd xHCI Host Controller

cat /sys/kernel/debug/usb/devices:


root@OpenWrt:~# cat /sys/kernel/debug/usb/devices

T:  Bus=01 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#=  1 Spd=480  MxCh= 2
B:  Alloc=  0/800 us ( 0%), #Int=  0, #Iso=  0
D:  Ver= 2.00 Cls=09(hub  ) Sub=00 Prot=01 MxPS=64 #Cfgs=  1
P:  Vendor=1d6b ProdID=0002 Rev= 5.15
S:  Manufacturer=Linux 5.15.162 xhci-hcd
S:  Product=xHCI Host Controller
S:  SerialNumber=1e1c0000.xhci
C:* #Ifs= 1 Cfg#= 1 Atr=e0 MxPwr=  0mA
I:* If#= 0 Alt= 0 #EPs= 1 Cls=09(hub  ) Sub=00 Prot=00 Driver=hub
E:  Ad=81(I) Atr=03(Int.) MxPS=   4 Ivl=256ms

T:  Bus=02 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#=  1 Spd=5000 MxCh= 1
B:  Alloc=  0/800 us ( 0%), #Int=  0, #Iso=  0
D:  Ver= 3.00 Cls=09(hub  ) Sub=00 Prot=03 MxPS= 9 #Cfgs=  1
P:  Vendor=1d6b ProdID=0003 Rev= 5.15
S:  Manufacturer=Linux 5.15.162 xhci-hcd
S:  Product=xHCI Host Controller
S:  SerialNumber=1e1c0000.xhci
C:* #Ifs= 1 Cfg#= 1 Atr=e0 MxPwr=  0mA
I:* If#= 0 Alt= 0 #EPs= 1 Cls=09(hub  ) Sub=00 Prot=00 Driver=hub
E:  Ad=81(I) Atr=03(Int.) MxPS=   4 Ivl=256ms

T:  Bus=02 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#=  2 Spd=5000 MxCh= 0
D:  Ver= 3.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS= 9 #Cfgs=  1
P:  Vendor=0781 ProdID=5588 Rev= 1.00
S:  Manufacturer=SanDisk
S:  Product=USB Extreme Pro
S:  SerialNumber=13112678A8FB
C:* #Ifs= 1 Cfg#= 1 Atr=c0 MxPwr=  0mA
I:* If#= 0 Alt= 0 #EPs= 2 Cls=08(stor.) Sub=06 Prot=50 Driver=usb-storage
E:  Ad=81(I) Atr=02(Bulk) MxPS=1024 Ivl=0ms
E:  Ad=02(O) Atr=02(Bulk) MxPS=1024 Ivl=0ms

More about my system

Version:
OpenWrt 23.05.4 r24012-d8dd03c46f / LuCI openwrt-23.05 branch git-24.086.45142-09d5a38

Hardware:
Netgear R7450

Installed manually:

kmod-usb-storage
usbutils
kmod-usb-storage-uas
block-mount
e2fsprogs
kmod-fs-ext4

USB packages installed:

root@OpenWrt:~# opkg list *usb*
kmod-usb-core - 5.15.162-1
kmod-usb-ledtrig-usbport - 5.15.162-1
kmod-usb-storage - 5.15.162-1
kmod-usb-storage-uas - 5.15.162-1
kmod-usb-xhci-hcd - 5.15.162-1
kmod-usb-xhci-mtk - 5.15.162-1
kmod-usb3 - 5.15.162-1
libusb-1.0-0 - 1.0.26-3
usbutils - 014-1