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# pmh7tool
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.
### Usage
-h, --help: print help
-d, --dump: hexdump registers
-w, --write <addr> <data>: write <data> to register <addr>
-r, --read <addr>: read from register <addr>
-c, --clear-bit <addr> <bit>: clear bit <bit> in register <addr>
-s, --set-bit <addr> <bit>: set bit <bit> in register <addr>
# Attention
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.**
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