[Bug 212955] Possible kernel regression USB2 (not USB3) port EDIROL UA-101 (in USB 1.1 mode, not USB2) error -110

[bugzilla-daemon@bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=212955

--- Comment #12 from Lucas Endres (jaffa225man@gmail.com) ---
(In reply to Alan Stern from comment #9)
> Interesting.  I don't see any particular differences as far as the USB core
> is concerned, but there are major differences in the way the device gets
> used.  You can even see it in the dmesg output:
> 
> [  963.375444] usb 4-1.5: 0:1: add audio endpoint 0x2
> [  963.376273] usb 4-1.5: 1:1: add audio endpoint 0x81
> 
> Those lines are present in 5.9 but not in 5.12, and they occur before the
> problem happens.  These messages may not be directly relevant to the problem
> at hand, but they do point to changes in the audio drivers.  Those changes
> may expose a bug somewhere else.
> 
> Judging from these results, I will guess that your bisection tests will
> pinpoint a commit that affects the snd-ua101 audio driver.

I'm not on a RISC processor, by the way, just a run-of-the-mill intel i5-2400.
So, yes, to me this seems to be a wider commit that may affect much more.

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