PPP support in ET1 Android kernel

Hello everybody


Is ET1 Android kernel compiled with PPP support and/or CONFIG_PPP_ASYNC flag?


When trying to start pppd daemon (part of a customer application) the system returns the following error:



Couldn't set tty to PPP discipline: Invalid argument.

Google insists that the most possible reason for this kind of error is that the kernel has been compiled without ppp_async support. Is this the case for ET1?