1What: /config/acpi 2Date: July 2016 3KernelVersion: 4.8 4Contact: linux-acpi@vger.kernel.org 5Description: 6 This represents the ACPI subsystem entry point directory. It 7 contains sub-groups corresponding to ACPI configurable options. 8 9What: /config/acpi/table 10Date: July 2016 11KernelVersion: 4.8 12Description: 13 14 This group contains the configuration for user defined ACPI 15 tables. The attributes of a user define table are: 16 17 aml - a binary attribute that the user can use to 18 fill in the ACPI aml definitions. Once the aml 19 data is written to this file and the file is 20 closed the table will be loaded and ACPI devices 21 will be enumerated. To check if the operation is 22 successful the user must check the error code 23 for close(). If the operation is successful, 24 subsequent writes to this attribute will fail. 25 26 The rest of the attributes are read-only and are valid only 27 after the table has been loaded by filling the aml entry: 28 29 signature - ASCII table signature 30 length - length of table in bytes, including the header 31 revision - ACPI Specification minor version number 32 oem_id - ASCII OEM identification 33 oem_table_id - ASCII OEM table identification 34 oem_revision - OEM revision number 35 asl_compiler_id - ASCII ASL compiler vendor ID 36 asl_compiler_revision - ASL compiler version 37