linux-kernel - Strange problem with USB device

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Message-ID: <cfc37ce0-823e-0d19-f5d7-fcd571a94943@lwfinger.net>
Date:   Tue, 8 Jun 2021 12:41:23 -0500
From:   Larry Finger <Larry.Finger@...inger.net>
To:     linux-usb@...r.kernel.org, LKML <linux-kernel@...r.kernel.org>
Cc:     ierturk@...e.org
Subject: Strange problem with USB device

Hi,

In https://bugzilla.suse.com/show_bug.cgi?id=1186889, a user is reporting that 
his Bluetooth component of a Realtek RTL8822CE is not being found in openSUSE's 
kernel 5.3.18. His lsusb scan is as follows:

$ lsusb
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 003: ID 13d3:56c9 IMC Networks HP TrueVision HD Camera
Bus 001 Device 002: ID 045e:07fd Microsoft Corp. Nano Transceiver 1.1
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

The Bluetooth device is found and works in Windows 10, where the Device Manager 
reports hardware ID's of 0bda:b00c. This combination is in driver btusb.

Is there a bug in the USB bus scan in kernel 5.3.18 that has since been fixed, 
or is there still a bug that misses this device?

Thanks,

Larry