Re: [RESEND PATCH 1/3] rfkill: Create "rfkill-airplane-mode" LED trigger

From: JoÃo Paulo Rechi Vita
Date: Mon Jun 13 2016 - 16:00:22 EST


On 13 June 2016 at 15:00, Pavel Machek <pavel@xxxxxx> wrote:
> Hi!
>
>> > JoÃo, that means you should send a patch to add the ::rfkill suffix.
>> >
>>
>> IMO "airplane" (or maybe "airplane-mode") is a better suffix, as it
>> reflects the label on the machine's chassis. I'll name it
>> "asus-wireless::airplane" and send this through platform-drivers-x86,
>> as this is now contained in the platform-drivers-x86 subsystem. Thanks
>> Johannes for your patience and help designing and reviewing the rfkill
>> changes, even if not all of them made it through in the end. And
>> thanks everyone else involved for the feedback.
>
> Actually, I'd do '::rfkill', for consistency with other places in
> /sys.
>
> /sys/devices/platform/thinkpad_acpi/rfkill/rfkill1/name
> /sys/class/rfkill
> /sys/module/rfkill
>

If we use "rfkill" as a suffix, how do you expect userspace to be able
to differentiate between a LED that indicates airplane-mode (LED ON
when all radios are OFF) and a LED that indicates the state of a
specific radio like WiFi or Bluetooth (LED ON when that specific radio
is ON)? If we're going this route we should provide meaningful
information here.

--
JoÃo Paulo Rechi Vita
http://about.me/jprvita