This tool is useful to command twilighte card board. This command won’t work on emulator because it’s not emulated.
Get twilighte board information
It will display version :
# twil -f Switch bank sets to ROM
-r means rom (readonly)
# twil -r Switch bank sets to RAM
#twil -w Swap / to usb device (mass storage), in kernel 2020.4 and shell 2020.4
# twil -uSwap / to sdcard device, in kernel 2020.4 and shell 2020.4
# twil -dSwitch current bank set
# twil -s1