Notes for clearing using “maskrom” mode on MacOS.
Install:
brew install python lsusb libusb
python3 -m pip install pyamlboot
The boot-g12.py comes with pyamlboot. Run it.
Download:
# bin for erasing the emmc
wget https://dl.radxa.com/zero/images/loader/radxa-zero-erase-emmc.bin
# bin for loading the Zero as a block-device for writing
wget https://dl.radxa.com/zero/images/loader/rz-udisk-loader.bin
# Erase the eMMC
/opt/homebrew/bin/boot-g12.py erase.bin
# Write the udisk-loader, provides for blk-device access from host
/opt/homebrew/bin/boot-g12.py rz-udisk-loader.bin
# Write the image
sudo dd if=Armbian_23.5.1_Radxa-zero_bookworm_current_6.1.30_xfce_desktop.img of=/dev/disk5 status=progress bs=1M oflag=direct
v4l2¶
Useful commands:
# List of available video devices
v4l2-ctl --list-devices.
# List available control settings
v4l2-ctl -d /dev/video0 --list-ctrls.
# List available video formats
v4l2-ctl -d /dev/video0 --list-formats-ext.
# Read the current settings
v4l2-ctl -d /dev/video0 --get-ctrl=exposure_auto.
# Change the setting value
v4l2-ctl -d /dev/video0 --set-ctrl=exposure_auto=1