USBDevices / USBDevInfo broken?

It seems as if the class and subclass are always being returned as zero for non-system devices:

*USBDevices
No. Bus Dev Class Description
  1   1   1  9/ 0 Synopsys DWC OTG root hub
  2   1   2  9/ 0 SMSC USB 2.0 4-Port Hub
  3   1   3  9/ 0 SMSC USB 2.0 4-Port Hub
  4   1   4  0/ 0 USB USB Keykoard
  5   1   5  0/ 0 Logitech USB-PS/2 Optical Mouse
  6   1   6 FF/ 0 SMSC LAN7800 USB 3.1 gigabit ethernet device
  8   1   8  0/ 0 Prolific Technology Inc. USB-Serial Controller
 15   1   7  0/ 0 QinHeng Electronics USB2.0-MIDI
*USBDevInfo 4
USB release     : 0110
Device class    : 00
Device subclass : 00
Device protocol : 00
Max packet size : 08
Vendor ID       : 1C4F
Product ID      : 0002
Device ID       : 0110
# of configs    : 1
Manufacturer    : 'USB'
Product         : 'USB Keykoard'
Serial number   : ''
Speed           : Low
*USBDevInfo 5
USB release     : 0200
Device class    : 00
Device subclass : 00
Device protocol : 00
Max packet size : 08
Vendor ID       : 046D
Product ID      : C03D
Device ID       : 2000
# of configs    : 1
Manufacturer    : 'Logitech'
Product         : 'USB-PS/2 Optical Mouse'
Serial number   : ''
Speed           : Low
*USBDevInfo 8
USB release     : 0110
Device class    : 00
Device subclass : 00
Device protocol : 00
Max packet size : 40
Vendor ID       : 067B
Product ID      : 2303
Device ID       : 0300
# of configs    : 1
Manufacturer    : 'Prolific Technology Inc.'
Product         : 'USB-Serial Controller'
Serial number   : ''
Speed           : Full
*USBDevInfo 15
USB release     : 0110
Device class    : 00
Device subclass : 00
Device protocol : 00
Max packet size : 08
Vendor ID       : 1A86
Product ID      : 752D
Device ID       : 0254
# of configs    : 1
Manufacturer    : ''
Product         : 'USB2.0-MIDI'
Serial number   : ''
Speed           : Full
*

Hehe… “Keykoard”, that person had one job… ;)

Pi 3B+, RISC OS 5.29 (15-Jul-21).

I didn’t bother to try updating to a more recent OS version as the Git history indicates USBDriver itself hasn’t been modified since (only a recent MakeFile change).

I notice that !USBInfo shows Defined at Interface Level against the 0/0 devices. I have no idea what that means of whether relevant!

Try using *USBConfInfo

On my Pi 4, “*USBConfInfo 7” (device 7 being the mouse) produced, inter alia, the following line:

Interface 0.0 class 3.1:2 ''

which decodes as Class 3 (HID), Subclass 1, Protocol 2 (Mouse).

Yup, I get 3.1:2 for my mouse too.

So it’s just Devices and DevInfo that are showing incorrect data.