EC25 RIL Implementation on Android 11

Technical Subjects Driver
1

I am trying to incorporate EC25 to my board (Nitrogen8MM) running on Android 11 via USB interface.
I followed the steps documented in the document Quectel_Android_RIL_driver_User_Guide_V2.0.pdf using IRadio1.4

I can confirmed that the RIL daemon is running by using the command below
getprop init.svc.ril-daemon
Running

I saw the LTE logo on the status bar. However, the signal strength has an X to indicate that there is NO internet connection.
I have checked the APN setting and it looks fine.

Is anyone could shed light on what else could be wrong? The link below is the radio log

OneDrive (live.com)

2

The log is not completed.
Could you provide log much longer.

Please use logcat -b all

3

Do you have the qmi_wwan_q?

4

Hi Bean Wang,

Thanks for your reply. Pls see the link below for logcat all
radio log all.txt

Do you have the qmi_wwan_q?
How do I determine if I have qmi_wwan_q

5

I guess that you don’t replace the qmi_wwan.c with the qmi_wwan_q.c.

Qmi_wwan_q - Quectel Forums

6

This log is still not complete for me.
I cannot see the version of the qmi_wwan.
The qmi driver must be provided by Quectel.

image
image1920×754 80.9 KB

7

Bean Wang,

Great. It works after I replaced the qmi_wwan.c with the one you’ve provided. Internet connection is established. !! Thanks

Next, I would like to implement voice call. I can make phone call but only thru audio interface on the EC25. I would wanna get the audio call to use the audio interface on my Android board. That would mean I have to implement UAC device on Android.
Do you have a guide on how to do that on Android 11 and how do I know if I have the UAC device of the EC25 on my Android

Thanks
Regards
Lbaerd

8

Sorry Quectel only have the guide how to use the UAC on Linux.
I don’t know how to use the UAC on Android.

9

Hi Bean,
I will try to work on that if that is even possible :sweat_smile:

Btw are u able to share with me the source code for libril.so and libreference-ril.so
for version 1.4 and 1.5

Thanks a lot

10

Sorry it is not possible to provide the source code for individual developers.