Gadgets Are necessary to comply with a protocol so that the interrupt-ask for (IRQ) lines may be shared. The PCI bus incorporates four interrupt strains, INTA# by INTD#, all of which are offered to each system. Around eight PCI gadgets share the exact same IRQ line (INTINA# via INTINH#) in https://nathanlabsadvisory.com/achieving-fisma-certification-in-the-usa-ensuring-robust-information-security/