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#!/bin/sh
# SPDX-License-Identifier: CC0-1.0
# 2021 Aleksander Morgado <aleksander@aleksander.es>
#
# Foxconn SDX55 FCC unlock operation
#
# require program name and at least 2 arguments
[ $# -lt 2 ] && exit 1
# first argument is DBus path, not needed here
shift
# second and next arguments are control port names
for PORT in "$@"; do
# match port type in Linux 5.14 and newer
grep -q MBIM "/sys/class/wwan/$PORT/type" 2>/dev/null && {
MBIM_PORT=$PORT
break
}
# match port name in Linux 5.13
echo "$PORT" | grep -q MBIM && {
MBIM_PORT=$PORT
break
}
done
# fail if no MBIM port exposed
[ -n "$MBIM_PORT" ] || exit 2
# run qmicli operation over MBIM
qmicli --device-open-proxy --device="/dev/$MBIM_PORT" --dms-foxconn-set-fcc-authentication=0
exit $?
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