[hp_wmi] Recieving same keycode from two keys

[rhysperry111@xxxxxxxxx]

Hi,

I would just like to preface this by saying that I am no too familiar 
with mailing list etiquette so I am sorry if I break any rules.

I have a laptop with dedicated brighness keys (HP Pavilion 
15-cx0598na). I believe these keys are handled by hp_wmi.

Whenever I press (and release) one of the brightness keys, this message 
appears in the journal:
```
[50761.461630] atkbd serio0: Unknown key pressed (translated set 2, 
code 0xab on isa0060/serio0).
[50761.461637] atkbd serio0: Use 'setkeycodes e02b <keycode>' to make 
it known.
[50761.492161] atkbd serio0: Unknown key released (translated set 2, 
code 0xab on isa0060/serio0).
[50761.492168] atkbd serio0: Use 'setkeycodes e02b <keycode>' to make 
it known.
```
Now, this is not that interesting at first, I obviously just need to 
map a keycode. The confusing part is that for both the brightness up 
AND the brightness down key I get the same code (e02b). I am not to 
sure how to debug this behavior but I would appreciate if someone 
helped investigate this issue.

I am not sure if this is relevant, but my RFKILL key does not work 
either (but does not show anything in journal).

Here is a link to acpidump: 
https://www.dropbox.com/s/ulyltq0gz35s79l/acpidump?dl=0

::: Rhys Perry :::