Summit SOM 8M Plus System-on-Module - WiFi 5 + Bluetooth 5.3

It is possible to bring up an AP on the IG60/SOM60 with network manager. If the connection is marked as "autoconnect" it will come up even after reboot. Property: connection.autoconnect: yes

However in so called APSTA mode (simultaneous station / AP operation) each connection (station and AP) need to have their own interface.

The standard interface is wlan0. For the AP it is necessary to define a secon interface, for example ap0:

iw phy0 interface add ap0 type __ap

This setting however is not persistent, hence it needs to be definded upon every reboot of the IG60/SOM60.

This could be achieved by adding above line to a script in /etc/profile.d. For example:

cat /etc/profile.d/add_ap0.sh

iw phy0 interface add ap0 type __ap

With this script being present the interface ap0 will be avaiable after each reboot.

Adaptive World Mode should not be used when hosting an AP.  The channel hopping algorithm can cause disconnect issues in some cases.  The best option is to set the regulatory domain in firmware manually, but at the minimum the "adaptive_ww" service should be disabled.  

Yes, Laird´s 60-radios support 4-addr mode and layer-2 bridging with Lairds specialized SUMMIT Wifi stack.

This functionality requires the use of software version 10.4.0.10 (Gihub) or newer and Lairds Summit Software stack for the 60-series modules: /wireless-modules/wifi-modules-bluetooth/summit-software-stack-60-series

This is supported on all 60-radios including SU60-SIPT, SU60-2230-C, SOM60 and SOM8M+.

You can also reference this tutorial: https://lairdcp.github.io/guides/Sterling-60-Tutorials/1.0/4addr-mode.html

There are two current sense resistors on the SOM 8M Plus DVK connected to a power monitoring IC to allow for measurements of current on the SOM 8M Plus power rail as well as on the external battery power rail.

For current consumption on the SOMs power rail issue:

cat /sys/bus/iio/devices/iio\:device0/in_current0_input

And for the external power rail issue:

cat /sys/bus/iio/devices/iio\:device0/in_current1_input

Reference: https://lairdcp.github.io/guides/summit-som8mplus-dvk-docs/1.0/PowerMan…

The interface the 60-series radio on the SOM 8M Plus system on module connects to the iMX8MP host processor is selectable in software to allow for choosing between lower power consumption and higher performance.

There are 5 options:

Description                             Radio Mode Parameter Value (set-radio-mode )
PCIe and UART(default                   pcie-uart
SDIO and UART                           sdio-uart
SDIO and UART (Stop upon shutdown)      sdio-uart-stop
SDIO and UART (Suspend upon shutdown)   sdio-uart-susp
SDIO and SDIO                           sdio-sdio

The command to set the interface option is:

set-radio-mode

Reference: https://lairdcp.github.io/guides/summit-som8mplus-dvk-docs/1.0/Switchin…

MCS stands for Modulation Coding Scheme and is an industry metric index based on Wi-Fi connection parameters between a client and wireless access point. These parameters include modulation type, coding rate, spatial streams, channel width, and guard interval.