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FireWire (or at least OHCI-1394) had another fun feature: It exposed memory from the machine over the bus. https://www.kernel.org/doc/html/latest/core-api/debu

by ojn 5y ago

FireWire (or at least OHCI-1394) had another fun feature: It exposed memory from the machine over the bus. https://www.kernel.org/doc/html/latest/core-api/debugging-via-ohci1394.html https://www.kernel.org/doc/html/latest/core-api/debugging-vi... [EDIT: This was 100% feature, not bug]

orev 5y ago
This (Direct Memory Access - DMA) is still a feature of Thunderbolt (which is really just an evolution of FireWire), and thunderbolt is coming to USB4.