What can make WLC_SET_WSEC_PMK ioctl to timeout ?

[Anonymous]

hi there,

I am porting WWD to a custom board powered by a Cortex-A9 and Murata SN8000x module (based on BCM43362A2) using SDIO interface.

A lot of thing are now working (enumeration, FW download, WAN scan, open AP join) until I try to join a WPA/WPA2 protected AP.

Digging into WWD showed me that the ioctl sending the WPA key (WLC_SET_WSEC_PMK) never gives any answer. That leads wifi_prepare_join to fail and propagates the error until my initial call to wwd_wifi_join.

My example only calls a very few wwd functions:

* wwd_management_init

* wwd_wifi_get_mac_address

* wwd_wifi_get_wifi_version

* wwd_wifi_join

I am wondering what can cause WLC_SET_WSEC_PMK ioctl not to answer.

Wrong firmware ? (the same FW runs perfectly on Murata's SN8000X EVK)

Wrong DCT ?

Timing issue during init ?

Any suggestions or guidance to debug will be appreciated. Thanks.

[Anonymous]

Hi folks,

I have some news about the issue, unfortunately I do not consider it is 100% solved.

I reproduced the issue on proven hardware (namely Murata SN8000x EVK). I wrote a custom application largely inspired from NoOS_Canned_send example.

The initialization is the same trivial sequence:

* wwd_management_init

* wwd_wifi_get_mac_address

* wwd_wifi_get_wifi_version

* wwd_wifi_join

And is works !!

But when I insert a scan before join (very useful to find spots), joining only works on OPEN AP. Try to join a WPA/WPA2 protected AP fails because of WLC_SET_WSEC_PMK ioctl that never answer.

Is there some cleaning stuff to perform after scanning and before joining ?

Thx for helping me.