linux-kernel - Re: [PATCH v3 3/3] selftests: ALSA: Add test for the 'pcmtest' driver

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Message-ID: <fd26e84e-10d0-c4d8-c3a5-0bfbb5e06b88@perex.cz>
Date:   Tue, 6 Jun 2023 15:51:39 +0200
From:   Jaroslav Kysela <perex@...ex.cz>
To:     Ivan Orlov <ivan.orlov0322@...il.com>, tiwai@...e.com,
        corbet@....net, broonie@...nel.org, skhan@...uxfoundation.org
Cc:     alsa-devel@...a-project.org, linux-doc@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-kselftest@...r.kernel.org,
        gregkh@...uxfoundation.org, himadrispandya@...il.com,
        linux-kernel-mentees@...ts.linuxfoundation.org
Subject: Re: [PATCH v3 3/3] selftests: ALSA: Add test for the 'pcmtest' driver

On 06. 06. 23 15:38, Ivan Orlov wrote:
> This test covers the new Virtual PCM Test Driver, including the capturing,
> playback and ioctl redefinition functionalities for both interleaved and
> non-interleaved access modes. This test is also helpful as an usage example
> of the 'pcmtest' driver.
> 
> We have a lot of different virtual media drivers, which can be used for
> testing of the userspace applications and media subsystem middle layer.
> However, all of them are aimed at testing the video functionality and
> simulating the video devices. For audio devices we have only snd-dummy
> module, which is good in simulating the correct behavior of an ALSA device.
> I decided to write a tool, which would help to test the userspace ALSA
> programs (and the PCM middle layer as well) under unusual circumstances
> to figure out how they would behave. So I came up with this Virtual PCM
> Test Driver.

Acked-by: Jaroslav Kysela <perex@...ex.cz>

-- 
Jaroslav Kysela <perex@...ex.cz>
Linux Sound Maintainer; ALSA Project; Red Hat, Inc.