What: /config/acpi Date: July 2016 KernelVersion: 4.8 Contact: linux-acpi@vger.kernel.org Description: This represents the ACPI subsystem entry point directory. It contains sub-groups corresponding to ACPI configurable options. What: /config/acpi/table Date: July 2016 KernelVersion: 4.8 Description: This group contains the configuration for user defined ACPI tables. The attributes of a user define table are: aml - a binary attribute that the user can use to fill in the ACPI aml definitions. Once the aml data is written to this file and the file is closed the table will be loaded and ACPI devices will be enumerated. To check if the operation is successful the user must check the error code for close(). If the operation is successful, subsequent writes to this attribute will fail. The rest of the attributes are read-only and are valid only after the table has been loaded by filling the aml entry: signature - ASCII table signature length - length of table in bytes, including the header revision - ACPI Specification minor version number oem_id - ASCII OEM identification oem_table_id - ASCII OEM table identification oem_revision - OEM revision number asl_compiler_id - ASCII ASL compiler vendor ID asl_compiler_revision - ASL compiler version