CONFIG_MFD_MACSMC: Apple Silicon System Management Controller (SMC)

General informations

The Linux kernel configuration item CONFIG_MFD_MACSMC:

• prompt: Apple Silicon System Management Controller (SMC)
• type: tristate
• depends on: ( CONFIG_ARCH_APPLE || CONFIG_COMPILE_TEST ) && ( CONFIG_OF ) && ( CONFIG_APPLE_RTKIT )
• defined in drivers/mfd/Kconfig
• found in Linux kernels: 6.17-rc+HEAD
• modules built: macsmc

Help text

The System Management Controller (SMC) on Apple Silicon machines is a piece of hardware that exposes various functionalities such as temperature sensors, voltage/power meters, shutdown/reboot handling, GPIOs and more.

Communication happens via a shared mailbox using the RTKit protocol which is also used for other co-processors. The SMC protocol then allows reading and writing many different keys which implement the various features. The MFD core device handles this protocol and exposes it to the sub-devices.

Hardware

LKDDb

Raw data from LKDDb:

• lkddb module macsmc CONFIG_MFD_MACSMC : drivers/mfd/Kconfig : "Apple Silicon System Management Controller (SMC)" # in 6.17-rc+HEAD
• lkddb of "" "" "apple,smc" : CONFIG_MFD_MACSMC : drivers/mfd/macsmc.c # in 6.17-rc+HEAD
• lkddb platform "macsmc" : CONFIG_MFD_MACSMC : drivers/mfd/macsmc.c # in 6.17-rc+HEAD

Sources

This page is automaticly generated with free (libre, open) software lkddb(see lkddb-sources).

The data is retrived from:

• Linux kernel
• Linux Kernel Driver DataBase (LKDDb)

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