On Wed, 2016-02-24 at 13:14 +0100, Pavel Machek wrote: > > Why would it need to? It could look at default triggers for the led > if it really wanted to.
And then it needs to change them; if anything goes wrong error recovery is practically impossible since the trigger information is lost forever. > > I'm sure you'd also not like to see 2**7 triggers implemented in > > rfkill > > to cover all the possibilities. > > Are all the possibilities useful? I assumed about 2 are. If you need > 2**7 of them, LED triggers can have parameters. It's not my position to decide which combinations some system integrator or userspace developer might find useful. Even when we add parameters to a trigger (I don't see a generic way to do that, but please do enlighten me), you're now ignoring the issue of the userspace controlled GSM modem... > > Really what you have here is a concept of "airplane mode", and that > > concept is specific to the rfkill subsystem. This happens to affect > > mostly an LED trigger, today, but as a concept it's something that > > *should* be managed within the rfkill subsystem. > > How is that concept used outside the LEDs? What semantics does > "airplane mode" have? You tried to explain "airplane mode" is not > well defined up in this thread... I'd say it's well-defined for any given set of system software, so if e.g. NetworkManager decides to define it one way, and connman another way, there's a definition but the kernel need not interfere with it. > > > Besides, the series really should have been Cc-ed to LED > > > people, too. > > > > That's simply unreasonable, you're essentially saying that any user > > of any kernel infrastructure should be Cc'ed to the implementer of > > that infrastructure... 9/10 patches in this series aren't even LED > > specific, > > I'm not saying that. I'm saying that LED maintainers should be Cced, > to keep the interfaces consistent. I pretty much have to read it that way, since the LED API is in no way impacted by these changes. Here's a new trigger, with some magic inner working. No impact on the LED API. johannes
