Re: [alsa-devel] Can a phone hook switch follow alsa jack model?

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On Monday 29 June 2009 16:32:15 Mark Brown wrote:
> On Thu, Jun 25, 2009 at 02:48:38PM +0200, Janusz Krzysztofik wrote:
> > During my previous, gpio-keys based attempt, I submitted a patch
> > that added new SW_HANDSET_PICK_UP event definition to
> > include/linux/input.h. Even if not accepted because of no
>
> Something like hook switch would be a more common name - the switch is
> closed when the phone is on hook.

I guess so.

> > comments, especially on the name I have choosen. However, there were
> > another name proposed by ams-delta board maintainer, Jonathan
> > McDowell - SW_PHONE_HOOK. Even if my wording may better match those
> > already existing ..._INSERT names, I am not sure which one should I
> > use.
>
> The _INSERT isn't at all appropriate since there's nothing being
> inserted here - the _INSERT names refer to the fact that something is
> being plugged in to a jack.

Sure, that's why I tried to replace _INSERT with _PICK_UP, that probably can 
closely refer to what can happen to a handset, while still following the 
general trend of ending switch related event names with action names.

> > Please also note that SND_JACK_HEADSET, that I temporarily use for
> > now, is an alias for SND_JACK_HEADPHONE | SND_JACK_MICROPHONE. Those
> > two can be seen as matching what a handset actually is. On headset
> > jack insert/remove, two distinct reports/events are generated, one
>
> OTOH a phone going on hook tends to mean something rather different in
> UI terms to having something plugged into a jack - it's part of the
> normal flow of making a phone call.

That's how I argued once in my message to Jonathan:
> I have choosen a different name to distinguish the switch actual function
> from what we know from telephony world as a switch that connects a phone to
> a line in response to a handset pick up.

Mark,
Thanks for sharing your thoughts. I am not going to waste your time on this 
linguistic debate any more. For now, I keep on using SND_JACK_HEADSET unless 
somebody happens to hit upon a better idea. If there are no other votes, I 
will try to work out a consistent set of symbols using one or another of 
already considered names that would best match current naming schema.

Cheers,
Janusz
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