Re: [PATCH v2 0/2] ALSA: pcmtest: Add a volume control with event fault injection

[Takashi Iwai <tiwai@suse.de>]

On Wed, 11 Nov 2026 10:04:27 +0100,
HyeongJun An wrote:
> 
> Hello Takashi,
> 
> This is the non-RFC version of [1], which Mark found reasonable [2].
> 
> Patch 1 fixes the places where pcmtest.rst does not match the driver.
> Patch 2 adds the volume control and its two fault parameters, and
> documents them.
> 
> mixer-test results on the new control, under qemu on sound/for-next:
> 
>   no fault                    all 8 checks pass
>   inject_ctl_no_event=1       only event_missing fails
>   inject_ctl_spurious_event=1 only event_spurious fails
> 
> The pcmtest selftest still passes all 10 tests.
> 
> Changes since the RFC:
> - document the new parameters
> - rename the control to "Test Playback Volume", which the OSS mixer
>   emulation does not map
> - add the documentation fix as patch 1
> 
> [1] https://lore.kernel.org/all/20261103011000.1012035-1-sammiee5311@gmail.com/
> [2] https://lore.kernel.org/all/61df01a7-10ee-407e-879f-d9c1085a5d43@sirena.org.uk/
> 
> Prepared with Claude Code (Claude Opus 5.5). Tested on x86_64 under qemu.
> 
> Best regards,
> HyeongJun An
> 
> HyeongJun An (2):
>   ALSA: doc: pcmtest: Update to match the driver
>   ALSA: pcmtest: Add a volume control with event fault injection

Applied both patches to for-next branch.  Thanks.


Takashi