19 lines
643 B
Markdown
19 lines
643 B
Markdown
# pmh7tool
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This is a tool to dump, read from, write to PMH7 registers on Lenovo ThinkPad laptops.
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This tool is a part of the coreboot project.
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### Usage
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-h, --help: print help
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-d, --dump: hexdump registers
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-w, --write <addr> <data>: write <data> to register <addr>
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-r, --read <addr>: read from register <addr>
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-c, --clear-bit <addr> <bit>: clear bit <bit> in register <addr>
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-s, --set-bit <addr> <bit>: set bit <bit> in register <addr>
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# Attention
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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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