# Re: \[PATCH v6 2/4\] HID: playstation: add microphone mute support for DualSense.

- From: Marek Behun \<hidden\>
- Date: 2021-02-15 14:42:00 
- List: linux-input
- Page: https://ratatoskr.run/linux-input/2021/02/8932590
- Thread: https://ratatoskr.run/linux-input/2021/02/8932577/t.md

```text
On Sun, 14 Feb 2021 16:45:47 -0800
Roderick Colenbrander [ref] wrote:

> From: Roderick Colenbrander <roderick.colenbrander@sony.com>
> 
> The DualSense controller has a built-in microphone exposed as an
> audio device over USB (or HID using Bluetooth). A dedicated
> button on the controller handles mute, but software has to configure
> the device to mute the audio stream.
> 
> This patch captures the mute button and schedules an output report
> to mute/unmute the audio stream as well as toggle the mute LED.
> 
> Signed-off-by: Roderick Colenbrander <roderick.colenbrander@sony.com>

Is the microphone supported via Linux? I.e. is there an audio driver
for it?

If it is, look at the audio-micmute LED trigger.

If you can't use the audio-micmute trigger because the microphone isn't
supported via Linux, I still think the LED should the LED should be
read-write. You can then register a LED private trigger. The driver should
change the state of the LED according to the microphone mute state only
if these trigger is enabled.

Marek
```