The IOports test verifies the following:
Hardware and software components of the audio subsystem. All Oracle supported audio implementations are tested.
Functionality of PCMCIA modem card and PCMCIA serial I/O socket card.
Parallel port devices, which include SBus parallel port and IEEE 1286-complaint parallel port.
SAI card.
System on-board serial ports and any multiterminal interface (ALM2) boards (su[0,1], zs[0,1], zsh[0,1], se[0,1], se_hdlc[0,1], asy[0,1] and mcp[0-3]).
Functionality of the SBus and PCI bus SunHSI boards.
Functionality of the hardware of the USB subsystem, which includes audio, keyboard, and printer devices.