linux-kernel - Re: [PATCH 1/2] ALSA: hda/realtek: Fix headset mic on Acer Nitro 5

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Message-ID: <CALiyAokt1zY4a6F0DTpyYAmu38D1Fk0k0QvsFtXYHzQ7suS38A@mail.gmail.com>
Date: Sun, 1 Dec 2024 00:28:26 +0530
From: Hridesh MG <hridesh699@...il.com>
To: Takashi Iwai <tiwai@...e.de>
Cc: Jaroslav Kysela <perex@...ex.cz>, Takashi Iwai <tiwai@...e.com>, Jonathan Corbet <corbet@....net>, 
	Stefan Binding <sbinding@...nsource.cirrus.com>, Kailang Yang <kailang@...ltek.com>, 
	Simon Trimmer <simont@...nsource.cirrus.com>, Joshua Grisham <josh@...huagrisham.com>, 
	Richard Fitzgerald <rf@...nsource.cirrus.com>, linux-sound@...r.kernel.org, 
	linux-kernel@...r.kernel.org, linux-doc@...r.kernel.org, 
	Shuah Khan <skhan@...uxfoundation.org>
Subject: Re: [PATCH 1/2] ALSA: hda/realtek: Fix headset mic on Acer Nitro 5

> know. I'll make an attempt to understand the cases and process
> coefficients before sending v2.
I did a deep dive into the code and frankly I'm a bit stumped right
now since it appears that the code for the headset type detection was
written by Kailang Yang from Realtek and i could not understand it
since I'm not sure where to look for documentation on realtek codec
processing coefficients.

To rephrase what I had meant earlier, type detection for the ALC287 is
currently not supported. I made an educated guess and added the codec
to an existing block of code, which detected it as CTIA. However, I
have no way of verifying if this guess is correct. Do you have any
advice on what my next steps should be?