Gadgets Are needed to follow a protocol so the interrupt-request (IRQ) strains may be shared. The PCI bus consists of four interrupt lines, INTA# by way of INTD#, all of which can be obtained to each device. Around eight PCI gadgets share a similar IRQ line (INTINA# via INTINH#) in https://nathanlabsadvisory.com/swift-csp-assessments/