[Gta04-owner] Further 3.17 kernel development for GTA04

Dr. H. Nikolaus Schaller hns at goldelico.com
Wed Nov 5 13:29:50 CET 2014


Am 05.11.2014 um 12:06 schrieb Folken <folken at kabelsalat.ch>:

> On Mon, Nov 03, 2014 at 07:00:42AM +0100, Dr. H. Nikolaus Schaller wrote:
>> Hm. I am not happy that there is no rfkill. Well, someone commented that
>> GPS is not a transmitter, but Linux provides the rfkill gps switch (and we have
>> not introduced it). And, basically the antenna amplifier might transmit (if it runs
>> out of control) so it is safer in an airplane situation to be able to turn off the
>> LNA power explicitly. 
> 
> GPS recievers use an oscilliator. This oscilliator interferes with
> nearby equipment. This is the reason why all the gps equipment installation
> manuals say that there should be at least 30cm between gps recievers.  
> So IMO an rfkill should be favoured. 

The gta04-kernel (3.18-rc) provides this rfkill and we will not remove it.
It might only not make its way into the vanilla Linux kernel.

BR,
Nikolaus



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