I have a pico-pi-imx7 and am trying to get the SPI interface to show up on my /dev/ listing.
I have put mbl-os 0.8 and 0.9 on it as well as going into the Linux/arm Kernel Configuration and enabled the “User mode SPI device driver support” and rebuilding. After that I checked every box on the SPI configuration page and saved and rebuilt as well.
The custom build instructions used are from: https://os.mbed.com/docs/mbed-linux-os/v0.9/develop-mbl/mbed-linux-os-distribution-development-with-mbl-tools.html
When running Ubuntu on the pico-pi-imx7d I see the spidev listed under /dev/ but when putting on any versions of the mbl-os I have tried (0.8, 0.9, 0.9 custom configurations) I can’t get the spi to show up.
When checking the config files there are changes in /proc/config.gz on the SPI fields for differently configured builds.
Could someone suggest how I should set up the Linux/arm Kernel Configuration in order to have the SPI listed in /dev/?