Gadgets Are necessary to abide by a protocol so that the interrupt-request (IRQ) lines may be shared. The PCI bus features 4 interrupt strains, INTA# via INTD#, all of which can be obtained to every product. Up to eight PCI products share the same IRQ line (INTINA# through INTINH#) in https://nathanlabsadvisory.com/iso-iec-19770-1-2017-it-asset-management/