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…

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/

I reviewed the specification and we are pulling the pins high according to that. When we do that, the nvme stops working. I installed those drivers, but they don’t seem to have any effect on the system. I’m not able to load the firmware to the device.

So you have installed the pcie driver? Btw, why does the nvme driver stop working? Did you debug this? How about connecting the em9291 module with usb after the system boots?

I attempted to install PCIe drivers, but I hit the following problems. MBPL_DRIVERS_R40_ENG3-bin.tar.gz seems to only have Ubuntu_x64 and kernel 5.3. We run Fedora Core with kernel 6.11 MBPL_DRIVERS_R40_ENG3-usb-pcie-src.tar.gz has the directories usb and linaro. The usb driver builds fine, but…

I don’t see problem to compile in Ubuntu 20. Can you try Ubuntu 20? owner@ubuntu:~/QMI/MBPL/MBPL_DRIVERS_R40_ENG3-usb-pcie-src/linaro$ make make -C /lib/modules/5.15.0-91-generic/build M=/home/owner/QMI/MBPL/MBPL_DRIVERS_R40_ENG3-usb-pcie-src/linaro ccflags-y="-DCONFIG_MHI_BUS_DEBUG" make[1]: Ent…

I fixed it by changing the signature to: int mhi_match(struct device *dev, const struct device_driver *drv) { I now see the wwan0at0 interface. Is it possible to access the GPS in PCIe mode? We would like to access it using gpsd. We are looking to get a GPS time source into chrony and this seem…

does this help? [image] EM9191 - NMEA GPS Stream - Can not find the ttyUSB Interface MC/EM Series I have just tried the virtual port, it is working fine for my Ubuntu 18 to output NMEA frame in virtual port: sudo apt-get install libmbim-utils make sure MBIM port is enabl…

I get to the part where it says to set GPS to autostart and but /dev/cdc-wdm0 doesn’t enumerate. Here is the minicom log AT OK AT!USBCOMP? Config Index: 1 Config Type: 4 (MBIM V2) Interface bitmask: 00001009 (diag,modem,mbim) OK AT!CUSTOM? !CUSTOM: GPSENABLE 0x01 …

Do you see the mbim interface enumerated just like the following? [image] EM9291 in Linux Preventing Shutdown MC/EM Series What is the VID PID on dmesg? On my side, I can see the following: [image] For example, I can see the wwan0qmi0 and wwan0mbim0 interface in y…

EM9291 in Linux Preventing Shutdown

IoT Modules MC/EM Series

jyijyi October 28, 2024, 9:36am 18

does this help?

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EM9291 in Linux Preventing Shutdown

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