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Support Pi4 and 3B+ #72

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Support Pi4 and 3B+ #72

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4 changes: 2 additions & 2 deletions circlean_fs/root_partition/etc/udev/rules.d/10-usb.rules
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Original file line number Diff line number Diff line change
@@ -1,3 +1,3 @@
# The purpose of this rules file is to ensure that the top left usb port and its partitions have a symlink to /dev/source_key[num], and the other ports to /dev/dest_key[num]
KERNEL=="sd*", KERNELS=="1-1.2", SUBSYSTEMS=="usb", SYMLINK+="source_key%n"
KERNEL=="sd*", KERNELS=="1-1.[3-5]", SUBSYSTEMS=="usb", SYMLINK+="dest_key%n"
KERNEL=="sd*", KERNELS=="1-1.[1-5]", SUBSYSTEMS=="usb", PROGRAM="/usr/local/bin/identifyusbport.sh %p %k add", SYMLINK+="%c%n"
ACTION=="remove", KERNELS=="1-1.[1-5]", SUBSYSTEMS=="usb", PROGRAM="/usr/local/bin/identifyusbport.sh %p %k remove"
56 changes: 56 additions & 0 deletions circlean_fs/root_partition/usr/local/bin/identifyusbport.sh
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Original file line number Diff line number Diff line change
@@ -0,0 +1,56 @@
#!/bin/bash

DEBUG_FILE=/dev/shm/identifyusbport.txt
ACTION="connected"
DEVPATH="$1"
USBPORT="$2"

function FoundSource(){
echo "upper left connected, source_key '${USBPORT}' ${ACTION}" >> ${DEBUG_FILE}
echo source_key
}

echo -e "\nStart" >> ${DEBUG_FILE}
echo "Parameter 1: $1" >> ${DEBUG_FILE}
echo "Parameter 2: $2" >> ${DEBUG_FILE}
echo "Parameter 3: $3" >> ${DEBUG_FILE}

if (echo "$3" | grep -q "remove") ; then
if (echo "$2" | grep -v -q "1-1.") ; then
echo "ignore unknown remove $2" >> ${DEBUG_FILE}
exit 0
fi
if (echo "$2" | grep -q ":") ; then
echo "ignore remove subpath $2" >> ${DEBUG_FILE}
exit 0
fi
ACTION="disconnected"
DEVPATH="${2}/"
fi

MODEL=$(cat /proc/device-tree/model | tr -d '\000')
echo Device model: ${MODEL} >> ${DEBUG_FILE}
echo Devpath: ${DEVPATH} >> ${DEBUG_FILE}

if (echo "$MODEL" | grep -q "Raspberry Pi 3 Model B Plus") ; then
echo "found Raspberry Pi 3 B+ with special assignment" >> ${DEBUG_FILE}
if (echo "${DEVPATH}" | grep -q "1-1.1.2/") ; then
FoundSource
exit 0
fi
elif (echo "$MODEL" | grep -q "Raspberry Pi 4 Model B") ; then
echo "found Raspberry Pi 4 B with special assignment" >> ${DEBUG_FILE}
if (echo "${DEVPATH}" | grep -q "1-1.3/") ; then
FoundSource
exit 0
fi
else
echo "unsing default mapping" >> ${DEBUG_FILE}
if (echo "${DEVPATH}" | egrep -q "1-1.1/|1-1.2/") ; then
FoundSource
exit 0
fi
fi
echo "dest_key $2 $ACTION" >> ${DEBUG_FILE}
echo dest_key