RM502Q-AE isn't recognize on Ubuntu 20.04 (focal)

Technical Subjects
1

RM502Q-AE is unsupported in Ubuntu 20.04

Please see the following information

odroid@odroid:~$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 20.04.4 LTS
Release: 20.04
Codename: focal
odroid@odroid:~$

Any idea why ?

Thx,

Gal

from syslog -

Aug 2 15:17:09 odroid kernel: [ 7374.479727@4] usb 1-1.4: USB disconnect, device number 8
Aug 2 15:17:22 odroid kernel: [ 7386.759263@4] usb 1-1.4: new high-speed USB device number 9 using xhci-hcd
Aug 2 15:17:22 odroid kernel: [ 7386.885954@4] usb 1-1.4: New USB device found, idVendor=2c7c, idProduct=0800
Aug 2 15:17:22 odroid kernel: [ 7386.885957@4] usb 1-1.4: New USB device strings: Mfr=1, Product=2, SerialNumber=3
Aug 2 15:17:22 odroid kernel: [ 7386.885959@4] usb 1-1.4: Product: RM502Q-AE
Aug 2 15:17:22 odroid kernel: [ 7386.885960@4] usb 1-1.4: Manufacturer: Quectel
Aug 2 15:17:22 odroid kernel: [ 7386.885962@4] usb 1-1.4: SerialNumber: 36b35ecb
Aug 2 15:17:22 odroid kernel: [ 7386.896046@4] usb 1-1.4: Unsupported device
Aug 2 15:17:22 odroid kernel: [ 7386.896175@4] usb 1-1.4: Unsupported device
Aug 2 15:17:22 odroid kernel: [ 7386.898874@4] usb 1-1.4: Unsupported device
Aug 2 15:17:22 odroid kernel: [ 7386.903073@4] usb 1-1.4: Unsupported device
Aug 2 15:17:22 odroid kernel: [ 7386.908114@4] usb 1-1.4: Unsupported device
Aug 2 15:17:22 odroid mtp-probe: checking bus 1, device 9: “/sys/devices/platform/ff500000.dwc3/xhci-hcd.0.auto/usb1/1-1/1-1.4”
Aug 2 15:17:22 odroid mtp-probe: bus: 1, device: 9 was not an MTP device

odroid@odroid:~$ uname --r
4.9.312-125

odroid@odroid:~$ lsusb
Bus 002 Device 002: ID 05e3:0620 Genesys Logic, Inc. USB3.1 Hub
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 009: ID 2c7c:0800 Quectel Wireless Solutions Co., Ltd.
Bus 001 Device 005: ID 2c7c:0125 Quectel Wireless Solutions Co., Ltd. EC25 LTE modem
Bus 001 Device 002: ID 05e3:0610 Genesys Logic, Inc. 4-port hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

From windows

at+qgmr
RM502QAEAAR11A04M4G_01.004.01.004

2

Hi @Gal_Guttman,

Linux kernel version 4.9.312-125 is rather old and is not the Linux kernel version used by Ubuntu 20.04 (5.4).

Support for RM500Q/USB id 2c7c:0800 was added with
https://lore.kernel.org/stable/20200122092836.708846182@linuxfoundation.org/
https://lore.kernel.org/stable/20200203161923.816526825@linuxfoundation.org/
and should also be available on Ubuntu 20.04 if they are tracking longterm 5.4
kernel updates.

Regards,
Reinhard