Hi, expert:<br />I have a question about IsaBus driver.<br /><br />There is a isa bus driver in&nbsp;MdeModulePkg\Bus\Isa\IsaBusDxe.<br />But i find nobody use it anymore.<br /><br />Based on current edk2-platform samples, they just use SioDxe driver plus Ps2Keyboard driver, not use IsaBus driver anymore.<br /><br />So when to use IsaBus driver?<br /><br />Thanks