How to Connect to rild Socket

On the java end of the rild socket is an instance of com.android.internal.telephony.RIL.java, which is owned by com.android.phone.PhoneApp.java. PhoneApp is a persistent app which, not surprisingly, provides the phone functionality. Disabling PhoneApp should kill any java-side use of the rild socket.

You also might want to try connecting to "rild-debug", which is unused (but may be ignored by the ril-daemon).

BTW - You can see the comms between the RIL layers by doing logcat -b radio.

Please post back if you come up with a workaround.

In recent versions of Android (and, likely, in the earlier versions), rild-debug is not meant to accept a full range of commands; only predefined commands are accepted.

Check out ril.cpp here;

static void debugCallback (int fd, short flags, void *param)...    case 0:        LOGI ("Connection on debug port: issuing reset.");        issueLocalRequest(RIL_REQUEST_RESET_RADIO, NULL, 0);        break;    case 1:        LOGI ("Connection on debug port: issuing radio power off.");        data = 0;        issueLocalRequest(RIL_REQUEST_RADIO_POWER, &data, sizeof(int));        // Close the socket        close(s_fdCommand);        s_fdCommand = -1;        break;

UPD: also, RIL requests are incrementally numbered and it's very easy to effectively break the ril/phoneapp pairing by issuing an out-of-the-series event.