EM9190: RMNET interface

IoT Modules MC/EM Series
1

Hi,

Will the RMNET interface work with EM 9190 module? Because the USBCOMP=? commands show RMNET Not Supported. Please confirm.

AT+GMR
SWIX55C_03.10.07.00 e32f05 jenkins 2022/12/14 16:18:06

OK
AT!USBCOMP=?
!USBCOMP:
AT!USBCOMP=,,
- configuration index to which the composition applies, should be 1

- 1:Generic (Not supported),
2:USBIF MBIM (Not supported),
3:RNDIS (Not supported),
4:USBIF MBIM V2 (Supported),
5:USBIF RMNET (Not supported),
6:USBIF MBIM_V2_CUSTOM (Supported)

- DIAG - 0x00000001,
ADB - 0x00000002,
MODEM - 0x00000008,
MBIM - 0x00001000,
RmNET - 0x00000100,
e.g.
9 - diag,modem interfaces enabled
1009 - diag,modem,mbim interfaces enabled

OK

Thanks,
Monisha

2

No, rmnet is not quite recommended for users
User should use MBIM interface

3

Ok, then does the EM 9190 module supports MBIM interface with Linux Kernel version 5.15?

4

Seems yes according to this user

5

Yes it is MBIM only, you must use package “libmbim-utils”

You can start the mbim connection by following these commands:

sudo apt-get install libmbim-utils
sudo touch /etc/mbim-network.conf
sudo vim /etc/mbim-network.conf

APN=internet
APN_USER=
APN_PASS=
APN_AUTH=
PROXY=yes

Your APN will most likely be different “internet” is just the generic APN

Then:

sudo mbim-network /dev/cdc-wdmX start
(X being the integer of your cdc-wdm)

sudo dhclient wwanX
(X being the integer of your wwan)