Low Function Terminal Subsystem

The low function terminal (lft) interface is a pseudo-device driver that interfaces with device drivers for the system keyboard and display adapters. The lft interface adheres to all standard requirements for pseudo-device drivers and has all the entry points and configuration code as required by the device driver architecture. This section gives a high-level description of the various configuration methods and entry points provided by the lft interface.

All the device drivers controlled by the lft interface are also used by AIXwindows. Consequently, along with the functions required for the tty subsystem interface, the lft interface provides the functions required by AIXwindows interfaces with display device driver adapters.