RM502Q-AE Linux Drivers

IoT Modules 5G Module
1

Table 1. Applicable Modules and USB Interface Information from UMTS_LTE_5G Linux USB Driver User Guide V3.0 implies that the only driver required for the RM500Q series is the MBIM driver. Is this correct or have I misinterpreted the table and the USB serial option driver is also required?

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Also for testing the MBIM driver it says details can be provided?

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2
  1. the USB serial option driver is also required.
  2. For the use of the MBIM network card driver, you can refer to the use of qmi driver.
3

Hi Isaac,

I’m trying to integrate this module to a Raspberry Pi. Have managed to get qmi_wwan_q driver ver 1.2.1 installed (verified using lsusb -t).
But when I run sudo ./quectel-CM -s “myapn”, wwan0 failed to get dhcp IP Address.
Tried to google search, found that need to set wwan to raw IP.

sudo echo ‘Y’ | sudo tee /sys/class/net/wwan0/qmi/raw_ip

But the thing is, there is no such file (/sys/class/net/wwan0/qmi/raw_ip) in my system.

BTW, my system is Raspberry Pi 4, with Raspi OS 64 Bit kernel 5.15.32.

Really need some enlightenment on this issue.

Thank you.

4

Is your network card name wwan0? you try to create /sys/class/net/wwan0/qmi/raw_ip file try.

5

Hi…

Finally got it working by new install of Raspi OS Buster with 5.10 Kernel.
Does not work on Raspi OS Bullseye with 5.15 kernel.

Manually create raw_ip file have no effect.

Thanks.

1 Like
6

Hello,
are there Linux drivers available for the RM502Q-AE when in PCI mode? We have a device where we want to utilize the higher bandwidth of PCI compared to USB, but it apears we need different drivers for that? Can you help?
Thank you!