Bug#1006251: USB Lenovo ThinkPad Compact Keyboard has fn_lock inverted

[Josh Triplett <josh@joshtriplett.org>]

Package: src:linux
Version: 5.16.7-2
Severity: normal
X-Debbugs-Cc: josh@joshtriplett.org

I have an external ThinkPad USB keyboard:

$ lsusb | grep -i keyboard
Bus 003 Device 022: ID 17ef:6047 Lenovo ThinkPad Compact Keyboard with TrackPoint

The Linux kernel exposes a fn_lock attribute in sysfs for this keyboard:

$ cat /sys/devices/pci0000:00/0000:00:14.0/usb3/3-5/3-5.4/3-5.4.3/3-5.4.3:1.1/0003:17EF:6047.000F/fn_lock
1

However, this attribute appears inverted for this particular keyboard:
it seems to be 1 when FnLock is *disabled* and 0 when FnLock is
*enabled*.