If you have a legacy free Toshiba laptop (such as the Libretto L1
series), say Y.
+config ACPI_SONY
+ tristate "Sony Laptop Extras"
+ depends on X86 && ACPI
+ default m
+ ---help---
+ This mini-driver drives the ACPI SNC device present in the
+ ACPI BIOS of the Sony Vaio laptops.
+
+ It gives access to some extra laptop functionalities. In
+ its current form, the only thing this driver does is letting
+ the user set or query the screen brightness.
+
+ Read <file:Documentation/acpi/sony_acpi.txt> for more information.
+
config ACPI_CUSTOM_DSDT
bool "Include Custom DSDT"
depends on !STANDALONE