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The mysterious missing iwl-debug-yoyo.bin firmware

July 12, 2020 — BarryK

As reported a couple of days ago, I am testing kernel 5.8-rc4:

Running 'dmesg' reports that failed to load firmware 'iwl-debug-yoyo.bin':

iwlwifi 0000:04:00.0: Direct firmware load for iwl-debug-yoyo.bin failed with error -2

After much searching, I failed to find it, nor any explanation about what it is for, or even whether it is really needed. Well, it isn't needed, as my wifi works. Wolfram has been through the same fruitless search, and has proposed a patch to remove that failure message:

if the issue still exists when we get to the 5.8.1 kernel, and if that firmware still remains elusive, then I will probably apply that patch. 

Tags: easy