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Moved fixEtherAddr script where it belongs under /lib/udev (#5981)

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brentr 2023-11-27 02:26:24 -08:00 committed by GitHub
parent 91a3607c0f
commit 7651c02626
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2 changed files with 3 additions and 24 deletions
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22
packages/bsp/rockpis/etc/udev/lib/udev/fixEtherAddr
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@ -1,22 +0,0 @@
#!/bin/sh
#Assign specified interface a fixed, unique Ethernet MAC address constructed
#from given prefix byte followed by five byte RK3308 CPU serial number
#Ethernet prefix byte value less 2 should be exactly divisible by 4
#e.g. (prefix - 2) % 4 == 0
[ "$2" ] || {
echo "Specify network interface and first Ethernet address byte in hex" >&2
exit 1
}
cpuSerialNum() {
#output first 5 bytes of CPU Serial number in hex with a space between each
#nvmem on RK3308 does not handle multiple simultaneous readers :-(
nvmem=/sys/bus/nvmem/devices/rockchip-otp0/nvmem
serNumOffset=20
/bin/flock -w2 $nvmem /bin/od -An -vtx1 -j $serNumOffset -N 5 $nvmem
}
Id=`cpuSerialNum` && { #fail if Rockchip nvmem not available
/sbin/ip link set $1 address $2:`echo $Id | tr ' ' :`
}

5
packages/bsp/rockpis/lib/udev/fixEtherAddr
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@ -17,5 +17,6 @@ cpuSerialNum() {
/bin/flock -w2 $nvmem /bin/od -An -vtx1 -j $serNumOffset -N 5 $nvmem
}
Id=`cpuSerialNum` || exit #fail if Rockchip nvmem not available
/sbin/ifconfig $1 hw ether $2:`echo $Id | tr ' ' :`
Id=`cpuSerialNum` && { #fail if Rockchip nvmem not available
/sbin/ip link set $1 address $2:`echo $Id | tr ' ' :`
}