Devices Are necessary to stick to a protocol so which the interrupt-request (IRQ) traces may be shared. The PCI bus features four interrupt traces, INTA# via INTD#, all of which can be found to each device. Up to 8 PCI devices share precisely the same IRQ line (INTINA# as a https://nathanlabsadvisory.com/iso-iec-19770-1-2017-it-asset-management/