I've worked on a couple of PCI drivers for Linux, however I haven't studied actual PCI bus protocol and such fundamental details. Also I haven't read your post thoroughly and haven't visited your links. So I can be completely wrong... But I am very surprised that you want to send interrupts from kernel (to PCI peripheral device as I understand). It is peripheral device which sends interrupts usually, that's why there's no notion of interrups sending. To initiate some process on the device, which you really want I suppose, usual kernel driver for PCI device just writes to certain register of device. _______________________________________________ Kernelnewbies mailing list Kernelnewbies@xxxxxxxxxxxxxxxxx https://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies