qc-linux-modems February 2019

qc-linux-modems@lists.osmocom.org

4 participants
4 discussions

DWM-222 rev A2
by Rogan Dawes 05 Aug '20

05 Aug '20

Hi folks, I have purchased a DLink DWM-222 with the intention of exploring the Linux OS running inside it, and if possible, compiling some additional USB gadgets to use with it. FWIW, the USB ID's are 2001:ac01 before modeswitch, and 2001:7e3d after switching. It creates ttyUSB[0-4] when switched, and the VID:PID added to the option driver. I was wondering if there had been any further developments in the exploration of the A1 hardware or firmware, in terms of gaining a shell on the device at all without soldering? Some initial probing has shown some 1.8v signals on some of the test points, so I will check those with a scope while booting to see if I can identify some waveforms, hopefully indicating a UART. I do have a FTDI UART with a voltage reference, so I am fairly confident that I can access those signals without damaging the device once identified. Unfortunately, the updated hardware has complete shields over the interesting bits, so I cannot identify chips, etc. I have also not been able to find firmware for the A2, the only firmware I could find was at ftp://ftp.d-link.co.za/DWM/dwm222/Firmware/, marked as A1. I'll check to see if they are compatible. And of course, will be copying the driver software from the embedded CDROM. Regards, Rogan

3 6

EC25 password for the Debug uart interface
by Florian Eckert 07 Feb '19

07 Feb '19

Hello, I am working on a EC25-1 which has problem with the USB communication with a dwc2 usb host controller [1]. To find the problem my next step was to connect to the EC25 debug UART on pin 11/12. But the system needs a root password! The one you have on your wiki does not work anymore [2]. I think I have the same version "msm LNX.LE.5.0.1-57031-9x40 mdm9607-perf /dev/ttyHSL0" Do you have another password for this interface or where did you get this information from? Thanks for help Flo [1] https://www.spinics.net/lists/linux-usb/msg176613.html [2] https://osmocom.org/projects/quectel-modems/wiki/EC25_Linux#root-password

3 3

Quectel EC25-J Dial up failure
by Mashkur Ahmad 07 Feb '19

07 Feb '19

Hi All, i found the problem to start the qmi dial up, can someone help me out. sudo qmi-network /dev/cdc-wdm0 start Loading profile at /etc/qmi-network.conf... APN: isp.docomoiot.net APN user: unset APN password: unset qmi-proxy: yes Checking data format with 'qmicli -d /dev/cdc-wdm0 --wda-get-data-format --device-open-proxy'... [07 Feb 2019, 09:52:49] -Warning ** [/dev/cdc-wdm0] requested auto mode but no MBIM QMUX support available Device link layer protocol retrieved: raw-ip Getting expected data format with 'qmicli -d /dev/cdc-wdm0 --get-expected-data-format'... [07 Feb 2019, 09:52:49] -Warning ** [/dev/cdc-wdm0] requested auto mode but no MBIM QMUX support available Expected link layer protocol retrieved: 802-3 Updating kernel link layer protocol with 'qmicli -d /dev/cdc-wdm0 --set-expected-data-format=raw-ip'... [07 Feb 2019, 09:52:49] -Warning ** [/dev/cdc-wdm0] requested auto mode but no MBIM QMUX support available error: cannot set expected data format: Expected data format not updated properly to 'raw-ip': got '802-3' instead Error updating kernel link layer protocol Starting network with 'qmicli -d /dev/cdc-wdm0 --wds-start-network=apn=' isp.docomoiot.net' --client-no-release-cid --device-open-proxy'... [07 Feb 2019, 09:52:49] -Warning ** [/dev/cdc-wdm0] requested auto mode but no MBIM QMUX support available error: couldn't start network: QMI protocol error (26): 'NoEffect' Saving state at /tmp/qmi-network-state-cdc-wdm0... (CID: 20) error: network start failed, no packet data handle [07 Feb 2019, 09:52:49] -Warning ** [/dev/cdc-wdm0] requested auto mode but no MBIM QMUX support available Clearing state at /tmp/qmi-network-state-cdc-wdm0... Thanks Mashur Khadmi

1 0

Addme
by Mashkur Ahmad 07 Feb '19

07 Feb '19

Hi Addme

1 0

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qc-linux-modems February 2019