This is a tool to dump, read from, write to PMH7 registers on Lenovo ThinkPad laptops.
This tool is a part of the coreboot project.
-h, --help: print help -d, --dump: hexdump registers -w, --write <addr> <data>: write <data> to register <addr> -r, --read <addr>: read from register <addr> -b, --read-bit <addr> <bit>: read bit <bit> in register <addr> -c, --clear-bit <addr> <bit>: clear bit <bit> in register <addr> -s, --set-bit <addr> <bit>: set bit <bit> in register <addr>
Writing to PMH7 registers is very dangerous, as you directly manipulate the power rails, enable lines, interrupt lines or something else of the device. Proceed with caution.