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# smctool
A Linux userspace tool to read Apple SMC keys. Supports various data types and output formats.
This tool is a part of the coreboot project.
### Usage
##### Main options
```
-h, --help: print help
-k, --key <name>: key name
-t, --type <type>: data type, see below
```
##### Output format options:
```
--output-hex: print value as a hexadecimal number
--output-bin: print binary representation
```
##### Supported data types
`ui8`, `ui16`, `ui32`, `si8`, `si16`, `flag`, `fpXY`, `spXY`
**fp** and **sp** are unsigned and signed fixed point data types respectively.
The `X` in **fp** and **sp** data types is integer bits count and `Y` is fraction bits count.
For example: `fpe2` means 14 integer bits, 2 fraction bits, `sp78` means 7 integer bits, 8 fraction bits (and one sign bit).
### Examples
Reading battery level:
```
smctool -k B0FC -t ui16 # returns Full Capacity of Battery 0
smctool -k B0RM -t ui16 # returns Remaining Capacity of Batery 0
```
Reading fan speed:
```
smctool -k F0Ac -t fpe2
```
### License
GPLv2
|
