Gadgets Are required to follow a protocol so which the interrupt-request (IRQ) strains might be shared. The PCI bus features four interrupt strains, INTA# through INTD#, all of which can be found to each system. As many as 8 PCI equipment share the identical IRQ line (INTINA# by INTINH#) in https://nathanlabsadvisory.com/3rd-party-security-audit-assessment/