I thought Ubuntu and OpenWRT are two operation systems. :-- correct understanding.
Do you run by root permission? :— Yes
BTW, did you compile the MBPL USB driver ( [MBPL_DRIVERS_R44_ENG5-usb-pcie-src.tar) and run in your OpenWRT platform? :— no openwrt we cant install currently.
Lastly, is your OpenWRT platform running on ARM64 processor? :— Yes
still we are stuck on it, can we work on to make it working, could you let me know steps for make it work QMI, Uqmi
I have no experience in uqmi as it is 3rd party application
What is the reason that you cannot install the driver?
As i mentioned before, other user can compile and install the MBPL driver, you should figure out why you cannot compile and use the usb driver and sdk
Btw, here also shows how to use mbim in openwrt platform
FYI, I just tried mbimcli with the OpenWRT 23.05.6 in VMWare, I don’t see problem with EM9291 in MBIM mode:
root@OpenWrt:~/MBPL_DRIVERS_R44_ENG5-usb-pcie-src/usb# mbimcli -d /dev/cdc-wdm0
--query-signal-state
[/dev/cdc-wdm0] Signal state:
RSSI [0-31,99]: '99'
Error rate [0-7,99]: '99'
Signal strength interval: '5'
RSSI threshold: '2'
Error rate threshold: 'unspecified'
root@OpenWrt:~/MBPL_DRIVERS_R44_ENG5-usb-pcie-src/usb# uname -r
5.15.189
root@OpenWrt:~/MBPL_DRIVERS_R44_ENG5-usb-pcie-src/usb# cat /etc/openwrt_release
DISTRIB_ID='OpenWrt'
DISTRIB_RELEASE='23.05.6'
DISTRIB_REVISION='r24232-539228933c'
DISTRIB_TARGET='x86/64'
DISTRIB_ARCH='x86_64'
DISTRIB_DESCRIPTION='OpenWrt 23.05.6 r24232-539228933c'
DISTRIB_TAINTS=''
You should be able to install the MBIM driver in OpenWRT
BTW, with qmicli in OpenWRT, it can also communicate with EM9291:
root@OpenWrt:~/MBPL/MBPL_SDK_R42_ENG4-lite# qmicli --device=/dev/cdc-wdm0 --devi
ce-open-proxy --device-open-mbim --nas-get-signal-strength
[/dev/cdc-wdm0] Successfully got signal strength
Current:
Network 'lte': '-62 dBm'
RSSI:
Network 'lte': '-62 dBm'
ECIO:
Network 'lte': '-2.5 dBm'
IO: '-106 dBm'
SINR (8): '9.0 dB'
RSRQ:
Network 'lte': '-13 dB'
SNR:
Network 'lte': '4.0 dB'
RSRP:
Network 'lte': '-94 dBm'
This implies uqmi has some unknown problem
Hi @jyijyi i am trying qmi in ubuntu pc now i am not able to see ttyUSB*… in /dev/…
can you tell me how to bring them see below screenshot i see modem is detected.
also there its only seen cdc_wdm2 … this is for ModemManager, i have try at comands through this device but its not responding.
did you compile the MBPL USB driver ( [MBPL_DRIVERS_R44_ENG5-usb-pcie-src.tar) and run in your Ubuntu PC platform?
no did not compiled , how to compile …?
there is readme.txt file for instruction
you have downloaded the wrong file, it should be “MBPL_DRIVERS_R44_ENG5-usb-pcie-src.tar”
yes, my bad..now i have downloaded correct one
hi @jyijyi do i need to compile both ?
i don’t think so
you can see if you can compile binary driver for
is it same issue as this one for “failed reason: sim-missing”?
just give a try:
qmicli -d /dev/wwan0qmi0 --device-open-proxy --dms-at-command=“AT!SIMDETPOL?”
qmicli -d /dev/wwan0qmi0 --device-open-proxy --dms-at-command=“AT!SIMDETPOL=0,0”
: UIM1 polarity. 0-LOW for card inserted, 1-HIGH for card inserted
: UIM2 polarity. 0-LOW for card inserted, 1-HIGH for card inserted
I have more challenging question here: how to flash EM9291 in PCI/QMI mode (under openwrt)? 
old tool qmi-firmware-update is obsolete. MBL tool like "fw-download-toolarm64linaro -o -f " sets modem in BOOT&HOLD but kernel removes all /dev/wwan* devices in that time during reset so the oparation fails…
in boot and hold mode, there will not be any wwan interface.
Only the /dev/ttyUSB0 is used to download firmware in boot and hold mode.
you can first test in a Ubuntu PC and you should not see any wwan interface during boot and hold mode.
I was checking /dev/tty* devices under openwrt and nothing was created that time… why? I was wondering if EM9291 needs to be set in some USB mode first like “AT!USBCOMP=1,3,0000100D”?
have you tested in USB mode in ubuntu PC?
Here shows it should enumerate the download port /dev/ttyUSB0 in boot and hold mode:
what should be installed on ubuntu to achive this? any partcular drivers? desktop or server version?
