linux-kernel - Re: [PATCH] ASoC: Intel: Boards: Support headset button function for nau88l25max and nau88l25ssm

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Date:   Fri, 8 May 2020 09:45:41 -0500
From:   Pierre-Louis Bossart <pierre-louis.bossart@...ux.intel.com>
To:     Radoslaw Biernacki <rad@...ihalf.com>,
        Liam Girdwood <liam.r.girdwood@...ux.intel.com>,
        Jie Yang <yang.jie@...ux.intel.com>,
        Jaroslav Kysela <perex@...ex.cz>, Takashi Iwai <tiwai@...e.com>
Cc:     Chinyue Chen <chinyue@...omium.org>, alsa-devel@...a-project.org,
        linux-kernel@...r.kernel.org, Ben Zhang <benzh@...omium.org>,
        Marcin Wojtas <mw@...ihalf.com>,
        Benson Leung <bleung@...omium.org>,
        Alex Levin <levinale@...gle.com>
Subject: Re: [PATCH] ASoC: Intel: Boards: Support headset button function for
 nau88l25max and nau88l25ssm



On 5/7/20 5:03 PM, Radoslaw Biernacki wrote:
> Map the buttons from the Android reference headset to
> KEY_PLAYPAUSE, KEY_VOICECOMMAND, KEY_VOLUMEUP, and KEY_VOLUMEDOWN.
> KEY_PLAYPAUSE is used instead of KEY_MEDIA for BTN_0 as it is more
> logical and have much broader userspace support. Like Chrome OS
> use it to play/pause of video and audio. KEY_PLAYPAUSE is also
> supported by Android (USB headset spec requires KEY_PLAYPAUSE
> for BTN_0.)
> https://source.android.com/devices/accessories/headset/usb-headset-spec
> 
> Signed-off-by: Chinyue Chen <chinyue@...omium.org>
> Signed-off-by: Benson Leung <bleung@...omium.org>
> Signed-off-by: Radoslaw Biernacki <rad@...ihalf.com>

Acked-by: Pierre-Louis Bossart <pierre-louis.bossart@...ux.intel.com>