Hello, I have been trying to set up a LTE USB Dongle on Jetson Nano for a couple weeks. I followed instructions from multiple resources, including some older threads on this forum, but none of them worked for me. Specifically, I tried using both a Quectel EP06-A and a sierra wireless MC7700 air prime LTE modems with a mPCIe to USB adapter. They both work on my linux PC running Ubuntu 20, but none of them work on Jetson Nano running Ubuntu 18.04 LTS. The dongles can occasionally connect to the network on Nano, but once I start to ping a website or try to search the internet, the connection immediately drops.
I tried to install the drivers for the Quectel EP06-A following their github page: GitHub - bacnh85/Quectel_Linux_USB_Driver: Quectel Linux Driver for WCDMA, LTE and 5G Modules. However, when I tried to download linux headers:
sudo apt-get install linux-headers-$(uname -r)
It says:
E: Unable to locate package linux-headers-4.9.201-tegra
E: Couldn’t find any package by glob ‘linux-headers-4.9.201-tegra’
E: Couldn’t find any package by regex ‘linux-headers-4.9.201-tegra’
Then I tried to run the ‘make’ command anyways, and it shows:
rm -rf *~ .tmp_versions modules.order Module.symvers
find . -type f -name *~ -o -name *.o -o -name .ko -o -name .cmd -o -name .mod.c | xargs rm -rf
make -C /lib/modules/4.9.201-tegra/build M=/home/nano3/Quectel_Linux_USB_Driver modules
make[1]: Entering directory ‘/usr/src/linux-headers-4.9.201-tegra-ubuntu18.04_aarch64/kernel-4.9’
CC [M] /home/nano3/Quectel_Linux_USB_Driver/./drivers/usb/serial/usb_wwan.o
CC [M] /home/nano3/Quectel_Linux_USB_Driver/./drivers/usb/serial/option.o
CC [M] /home/nano3/Quectel_Linux_USB_Driver/./drivers/usb/serial/qcserial.o
/home/nano3/Quectel_Linux_USB_Driver/./drivers/usb/serial/qcserial.c:91:34: warning: "/" within comment [-Wcomment]
/ {USB_DEVICE(0x05c6, 0x9215)}, / Acer Gobi 2000 Modem device (VP413) */
CC [M] /home/nano3/Quectel_Linux_USB_Driver/./drivers/net/usb/qmi_wwan.o
/home/nano3/Quectel_Linux_USB_Driver/./drivers/net/usb/qmi_wwan.c:14:10: fatal error: linux/sched/signal.h: No such file or directory
#include <linux/sched/signal.h>
^~~~~~~~~~~~~~~~~~~~~~
compilation terminated.
scripts/Makefile.build:341: recipe for target ‘/home/nano3/Quectel_Linux_USB_Driver/./drivers/net/usb/qmi_wwan.o’ failed
make[2]: *** [/home/nano3/Quectel_Linux_USB_Driver/./drivers/net/usb/qmi_wwan.o] Error 1
Makefile:1646: recipe for target ‘module/home/nano3/Quectel_Linux_USB_Driver’ failed
make[1]: *** [module/home/nano3/Quectel_Linux_USB_Driver] Error 2
make[1]: Leaving directory ‘/usr/src/linux-headers-4.9.201-tegra-ubuntu18.04_aarch64/kernel-4.9’
Makefile:10: recipe for target ‘modules’ failed
make: *** [modules] Error 2
It seems that it is missing the <linux/sched/signal.h> header file in the kernel. I found online that signal.h has been moved to a different directory since 4.11 and Nano is running 4.9. So I tried to rebuild the kernel following JetsonHacksNano github repository (GitHub - JetsonHacksNano/buildKernelAndModules: Build the Linux Kernel and Modules on board the NVIDIA Jetson Nano Developer Kit). However, the scripts on the repository were for JetPack 4.3, L4T 32.3.1 whereas the current Jetson Nano release is L4T 32.5.1. Seems that that repository has not been updated since December 2019.
I then tried to manually update the kernel following Nvidia’s kernel customization documentation, but I am not familiar with kernel modifications. So, I am currently stuck. Does anyone have any advice as to how to proceed? Has anyone encountered similar issues as I have?
I really think Nvidia should consider including more support for LTE modules in their future releases because there are a lot of applications using Nvidia products that will need LTE connection where wifi or cable connections are not available.
Any help will be appreciated. Thanks in advance!