We are using an USB dongle based on realtek chipset 8192. WiFi connection to access point work fine.
WiFi direct discovery works properly. The device is able to detect an other listening device but the next connection attempt fails.
We have included in our system the driver for the chipset coming from realtek as well as the libhardware legacy.
The wpa supplicant is the one coming from freescale with jb 4.3.
Thanks in advance for your help.