Hi,
Thank you for your answer.
This is the ouput when I’ve tried to use the command:
root@swi-mdm9x15:~# echo "\$GPS_START" > /dev/nmea
[ 111.611414] nmea_write failed to write 11 bytes: -1.
[ 111.615382] nmea: smd opened
-sh: echo: write error: Input/output error
note: the /etc/legato/usbmodes contains the ‘nmea’ option so, the /dev/nmea is loaded correctly.
Thank you again,
Daniel