File list of package libcpupower-dev in bullseye-backports of architecture arm64
/usr/include/cpufreq.h /usr/include/cpuidle.h /usr/lib/aarch64-linux-gnu/libcpupower.so /usr/share/doc/libcpupower-dev/changelog.Debian.gz /usr/share/doc/libcpupower-dev/copyright