misc helper tools to use a recent linux with the Epson Moverio BT-200
change bootorder to UART, USB and uSD card and reboot immediately after emergency remountly readonly
write the bootmode used by the factory u-boot to decide what to do
reads gps data from /dev/tigps (factory kernel) or /dev/gnssX (from new kernel) in the AI2 protocol. Protocol is not fully understood, so just the basics are there.
Usage: read-gps device [nmea]
Using the nmea keyword enables output of some simple GPRMC NMEA records generated from the AI2 data.