[GNSS] how to use GPS properly?

Hi-

From Legato page
http://legato.io/legato-docs/latest/howToGNSS.html#howToGNSS_initialize

It says app needs to do le_gnss_Enable() to get GNSS ready. However, I don’t seem to see it in sample apps like textLoc and it just calls le_pos_Get2DLocation() to get lat-long.

What is the proper way to active GNSS inside WP8548 modem?

Thanks!

Hui