I'm trying to write an app to talk to the rild. And Yes, I know this is not politically correct, but it's an embedded industrial telemetry app so I'm not concerned about user experience, portability and all that stuff.

The problem is that when I try to connect, I get a java. Can anybody help me? The phone Nexus One is rooted with Cyanogenmod 7 and the app is running as superuser using the "SuperUser" app from Market. BTW I initially tried to use the frameworks but got a humongus boatload of errors mostly about java and and third party classes unknown, so I gave up after days of hair-pulling.

I've also STFW and this site - lot's of dancing around the issue but no concrete advice.

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On the java end of the rild socket is an instance of com. 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. 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.

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Log In Sign Up. Join the Stack Overflow Community. Stack Overflow is a community of 7. Join them; it only takes a minute: How to Connect to rild Socket Ask Question. Any help greatly appreciated.

DontPanic 3 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. Cesar Maiorino 3 Thanks, I'll try that. I can get no exception on connect but get no response when I send a command.

I'm not sure I'm sending a valid command having reverse engineered it. I'll report back on progress so as to be helpfult to others. Your best bet is looking at the source for RIL. Yeah, I tried that but it proved just too difficult because it was so layered and abstracted. But I found the real solution: I found I can connect to the "rild-debug" socket just fine, and do what I need. I am doing more or less the same thing as u asked originally, as i tried to connect to ril-debug socket and after some workaround i was able to do that: All my code is in c language.

I somehow vaguely know that IPC binder class in android exchanges parcels of data across the socket of rild but it happens in java and i want to be in c language.

Can you please tell me how am i gonna achieve that? I can share detail information if you are willing to help. Here's how I did it: The commands are binary-encoded.

MT65x2_kernel_lk/sotoyege.web.fc2.com at master · ariafan/MT65x2_kernel_lk · GitHub

You may also have to change the permissions on the socket to be world-writable using Runtime. I'd publish the source code but it was part of a customer project. BTW - AFIK you can only write, not read. LOGI "Connection on debug port: On my project, I just hacked across init scripts, hex-edited socket name in librilmtk. Can you please post an example about how to send USSD request via rild, having root access?

RankoR I can't show that source right now, and 'root access' by itself actually is not mandatory - my end application can run as ordinary user. Your best hope to complete this quickly - is to target all AOSP 1-sim phones with custom libril. RankoR some kind of modified libril. RankoR also, USSD requests are solicited, meaning a that rild will alert phone about USSD reply b I warned in my answer that RIL requests are incrementally numbered, so you'll have to go writing proxies and filtering all ril requests anyway..

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