> There are patches in the queue to enable legacy interrupt sharing for > PCI 2.3 compliant devices at least. But I bet the Fritz hardware > predates even this (just like my Fritz!Card DSL v2). Thank you very much for this hint. Do you know when these will be out? Does anybody know about a PCI ISDN card which is PCI 2.3 compliant? > Emulating an ISDN adapter could be fairly complicated, specifically if > the interface the binary Windows driver expects is not well documented. > Even for Linux-on-Linux, i.e. when you can debug both host and guest > properly, this will be quite some work (just check the driver code of > some popular ISDN adapters Linux supports). > > And it may turn out to be timing sensitive, e.g. for fax services. > Emulation will happen in user space, i.e. in still fairly > undeterministic QEMU hands, while device path through mostly happens in > kernel space under KVM control. I also think that it's not a good idea to solve the problem that way. Perhaps there is such a thing like a USB ISDN adapter. We then could pass the USB port which this adapter is attached to to the virtual machine. But even if I am able to find such a device, I doubt that our fax system supports it. Nevertheless, there are chances that it works. Regards, Peter P.S. Thanks for bothering with our exotic problem! -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
