I have an EM9291 install in a machine who’s target OS is Fedora Core 40. I’ve also tried these steps with Fedora Workstation and Ubuntu 22. The issue is that when we do a shutdown -h now the system will shutdown and then power back on. However, if we use Windows, this is not an issue, the syste…

Yes, if you remove the modem from the machine, the shutdown in Linux is okay. I installed the driver you linked, but it doesn’t seem to have an effect. I’ve disable secure boot and the TPM on the computer for testing. I also tried to upgrade the firmware to SWIX65C_02.17.08.00, to it seemed like …

How about usb thumb drive? Will it power on the linux? Did you also check the BIOS setting? [Cheetaiean] USB device won't turn off on shutdown or suspend linux, debian, usb asked by Cheetaiean on 07:09PM - 20 Jul 21 UTC How…

Hi, We solved the power off issue, it was an interaction between WAKE# and the BIOS. However, I still don’t think the driver is working properly in Linux. I tried loading the modem firmware with the following commands with the built-in qcserial driver but got the following: $ sudo ./fw-download-…

you can see the command parameter for fwdownload tool here: [image] Help with EM7565 Firmware and PRI File Update on Linux MC/EM Series I just tried in Ubuntu 18 with EM7565, no problem is found for FW upgrade: owner@ubuntu:~/QMI/MBPL/MBPL_SDK_R39_ENG2-fwdwl.bin/SampleAp…

Hi, There are no ttyUSB devices enumerated even though it looks like the qcserial driver is loaded correctly. I only see wwan0mbim0 wwan0qcdm0 wwan0qmi0. lspci shows 05:00.0 Unassigned class [ff00]: Qualcomm Technologies, Inc Device 0308 lsusb doesn’t show anything. I built and installed th…

I don’t get any cdc or usb enumeration. Unfortunately, I can’t post the full output of dmesg, but I tried to capture the relevant sections. core@p5-0000-core:~$ cat dmesg.log | grep usb [ 0.319555] usbcore: registered new interface driver usbfs [ 0.319555] usbcore: registered new interface …

I wonder if you really connect the EM9291 module to the board, I don’t even see Vendor ID 1199 Please check the status of pin 20 and pin 22 to see whether you are setting USB as communication port: [image] Problems Getting EM9191 Working with M.2 to USB Adapters Development tools …

Thank you for pointing me in that direction. Indeed, pins 20 and 22 were disconnected. However, this seemed to cause another issue. We have a custom board carrier board with a NVMe drive (using 4x PCI), and several other network devices using various other PCI lanes. When we pull PCIE_DIS to 1.8…

You need to see the specification of em9291 The pin is controlling whether it is for usb or pcie communication Btw, did you install the pcie driver? https://source.sierrawireless.com/resources/airprime/software/mbpl/mbpl-software-latest/

EM9291 in Linux Preventing Shutdown

IoT Modules MC/EM Series

jyijyi October 23, 2024, 3:11am 8

What is the VID PID on dmesg?
On my side, I can see the following:

Topic		Replies	Views
Setting up EM9291 Module IoT Modules faq , driver	35	371	May 1, 2026
EM9190 not being detected in Linux Ubuntu 20.04.5 EM9191 EM7690 5G dev kit MC/EM Series feature-request , debug , iot-cards , faq , driver	31	3592	November 21, 2022
EM9191 truncated AT output with Raspberry Pi4 MC/EM Series	32	1211	October 24, 2022
EM9291 how to get data connection to work in Linux IoT Modules	21	709	January 7, 2025
Sierra EM9291 module not enumerating as a usb device on imx93 debug , driver	7	67	January 30, 2026

EM9291 in Linux Preventing Shutdown

Related topics