On Tue, 2016-02-23 at 21:45 +0100, Pavel Machek wrote: > So... you add LED trigger to display the state of the airplane > mode. Ok, why not.
Yes. However, consider that "the airplane mode" isn't a well-defined concept; some systems may want to light up that LED even when wifi is still enabled, since you're nowadays quite likely to be allowed to use wifi (but not enable e.g. LTE) while in-flight. > But now you add an way to override it? Why? If someone wants to > change > the led state, he can just change trigger to none, and then control > the LED manually... Yes, but now you've forced every application that wants to deal with this to know about every single LED that might be used with this trigger... that won't work for some generic userland tool that might want to implement an "airplane-mode policy". > BTW what happens when the device contains both radios controlled by > kernel (wifi, bluetooth) and radios controlled by userspace (GSM > modem)? You'd better have the userspace to control the LED :) johannes
