Gadgets are needed to follow a protocol so which the interrupt-request (IRQ) lines might be shared. The PCI bus contains four interrupt traces, INTA# via INTD#, all of which are available to each device. Around eight PCI equipment share the identical IRQ line (INTINA# by means of INTINH#) in APIC-enabled https://nathanlabsadvisory.com/empowering-businesses-through-comprehensive-cybersecurity-solutions/