lkml.org 
[lkml]   [2020]   [Nov]   [12]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: [PATCH] platform/x86: dell-privacy: Add support for new privacy driver
From
Date
On 11.11.20 15:30, Limonciello, Mario wrote:

Hi,

> Pressing the mute key activates a time delayed circuit to physically cut
> off the mute. The LED is in the same circuit, so it reflects the true
> state of the HW mute. The reason for the EC "ack" is so that software
> can first invoke a SW mute before the HW circuit is cut off. Without SW
> cutting this off first does not affect the time delayed muting or status
> of the LED but there is a possibility of a "popping" noise leading to a
> poor user experience.

how long is that timeout ?

> Exposing as an LED device allows the codec drivers notification path to
> EC ACK to work.

Which driver exactly ? Who's gonna access this LED ?


--mtx

--
---
Hinweis: unverschlüsselte E-Mails können leicht abgehört und manipuliert
werden ! Für eine vertrauliche Kommunikation senden Sie bitte ihren
GPG/PGP-Schlüssel zu.
---
Enrico Weigelt, metux IT consult
Free software and Linux embedded engineering
info@metux.net -- +49-151-27565287

\
 
 \ /
  Last update: 2020-11-12 16:06    [W:0.272 / U:0.176 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site