linux-kernel - Re: [PATCH] ALSA: usb-audio: fix incorrect clock source setting

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Message-ID: <CAEsQvcu3jXa4fXJAu7nvT+G+-S2bZ1BPkcuwnT4VjbrnW1Pkog@mail.gmail.com>
Date:   Sat, 24 Jul 2021 15:20:47 +0000
From:   Geraldo Nascimento <geraldogabriel@...il.com>
To:     Takashi Iwai <tiwai@...e.de>
Cc:     chihhao.chen@...iatek.com, alsa-devel@...a-project.org,
        wsd_upstream@...iatek.com, damien@...audio.com, tiwai@...e.com,
        linux-kernel@...r.kernel.org, linux-mediatek@...ts.infradead.org,
        matthias.bgg@...il.com, linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH] ALSA: usb-audio: fix incorrect clock source setting

> Dr. Iwai, perhaps we could restrict the generalized fix for the
> Behringer UFX1604 / UFX1204 with some simple logic to devices that
> only have *one* clock source.

Okay, rereading the original commit log from Cihhao Chen I gather
Samsung USBC Headset (AKG) with VID/PID (0x04e8/0xa051) actually has
two clock selectors and only one clock source.

Correct me if I'm wrong.

This is complicated by the fact I haven't been able to find a lsusb -v
of Samsung USBC Headset (AKG) with VID/PID (0x04e8/0xa051)

Even so, my proposition still stands: devices with only one clock
source and only one clock selector should be able to handle us
selecting the clock selector to the only clock source.