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SUPERIO(4) Kernel Interfaces Manual SUPERIO(4) NAME superio -- Super I/O controller and bus driver SYNOPSIS To compile this driver into the kernel, place the following line in your kernel configuration file: device superio Alternatively, to load the driver as a module at boot time, place the following line in loader.conf(5): superio_load="YES" DESCRIPTION Super I/O is an I/O controller that combines various low-bandwidth devices that can be functionally unrelated otherwise. A typical Super I/O can con- tain devices such as * a floppy disk controller * a parallel port * a serial port * a PS/2 mouse and keyboard controller * a hardware monitoring controller * a watchdog timer * a controller for general purpose input-output The superio driver provides support for devices residing in the Super I/O controller that can only be accessed or discovered using the controller's interface. Some of the Super I/O devices have standardized interfaces. Such devices either use well-known legacy resources or they are advertised via ACPI or both. They can be configured either using ISA bus hints or they are auto-configured by acpi(4). The superio driver is not designed to interact with that kind of devices. They can be handled by their respec- tive drivers without any knowledge of the Super I/O specifics. For in- stance, fdc(4) provides access to the floppy disk controller. There are other Super I/O devices that do not have any standardized inter- face. Drivers for those devices can be written using facilities of the superio driver. The driver itself attaches to the ISA bus as all supported controllers are accessed via LPC I/O ports. The superio driver is unusual as it is both a controller driver for a vari- ety of Super I/O controllers and a bus driver for supported devices in those controllers. HARDWARE The superio driver supports a multitude of Super I/O controllers produced by Nuvoton, formerly known as Winbond, and ITE, namely: * Fintek F81803 * Fintek F81865 * Nuvoton NCT5104D/NCT6102D/NCT6106D rev. A and B+ * Nuvoton NCT5585D * Nuvoton NCT6116D * Nuvoton NCT6775 * Nuvoton NCT6776 * Nuvoton NCT6779 * Nuvoton NCT6791 * Nuvoton NCT6792 * Nuvoton NCT6793 * Nuvoton NCT6795 * Nuvoton NCT6796D-E * Winbond 83627HF/F/HG/G/S/THF/EHF/DHG/UHG/DHG-P * Winbond 83637HF * Winbond 83667HG/HG-B * Winbond 83687THF * Winbond 83697HF/UG SEE ALSO superio(9) HISTORY The superio driver was written by Andriy Gapon <avg@FreeBSD.org>. FreeBSD ports 15.quarterly October 11, 2019 SUPERIO(4)
NAME | SYNOPSIS | DESCRIPTION | HARDWARE | SEE ALSO | HISTORY
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