/lib/udev/rules.d/60-libhackrf0.rules is in libhackrf0 2014.08.1-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 | ATTR{idVendor}=="1d50", ATTR{idProduct}=="604b", SYMLINK+="hackrf-jawbreaker-%k", MODE="660", GROUP="plugdev"
ATTR{idVendor}=="1d50", ATTR{idProduct}=="6089", SYMLINK+="hackrf-one-%k", MODE="660", GROUP="plugdev"
ATTR{idVendor}=="1fc9", ATTR{idProduct}=="000c", SYMLINK+="nxp-dfu-%k", MODE="660", GROUP="plugdev"
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