Messages in this thread | | | Subject | Re: [PATCH] platform/x86: dell-privacy: Add support for new privacy driver | From | "Enrico Weigelt, metux IT consult" <> | Date | Thu, 12 Nov 2020 16:06:13 +0100 |
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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
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