rockymeza/wifi — pull request #40 by martinalberto (2014-05-19 12:22:39+00:00)
Title: you have to have a value for cell.signal

Somecase the iwlist say this:

Quality:63 Signal level:0 Noise level:0
instaded of:
Quality=26/100 Signal level=4/100

I test this in Raspberry pi system.

it is necesary to fix better this problem.!