7688 - Wireless signal strength info in Station mode?

The basic web interface shows me the strength in % for the SSID I’m connected to. Let’s say “WHYFI 91%”

In the full OpenWRT interface I can see radio0 with the SSID of LinkIt Smart 7688 xxxxx at 11% and WHYFI at 0% in both the Status page and the Wifi details pages. Signal for the Linkit is -256 dBm, WHYFI is 0 dBm

In the CLI,

iwconfig shows ra0 having Link Quality=10/100 Signal level:0 dBm Noise level:-95 dBm Bit Rate=150 Mb/s Tx-Power=17 dBm and apcli0 does not report link quality, signal or noise.

iw ra0 returns nl80211 not found.

iwlist ra0 scanning returns Failed to read scan data : Operation not supported

I need to be able to report wifi strength and link quality for the active connection but I’m running out of ways to get it. Anybody have any ideas?