[maemo-developers] N800 audio connector jack

[From: Jami Pekkanen]

Jami Pekkanen wrote:
> I continued figuring out the headset detection, and I (accidentally) 
> noticed that the resistance is different depending on which direction 
> it's measured. On another direction it's about 1.8 kOhms and when 
> switching around the heads of the multimeter, I get ~1.1 kOhms. So now 
> I'm guessing that the detection is perhaps somehow done by comparing 
> this difference.
> 
> Unfortunately my knowledge in electric circuits isn't too vast and I'm 
> having a hard time even imagining what kind of circuit could do this. 
> Could someone with more experience in electrical systems shed some light 
> on what could be happening here?

Continuing my monolog.

I came to think to me that this could be done with a diode.
Unfortunately my knowledge in them is even worse than with resistors.

- Jami