3 ms·Admin access, or a working Firewire port.by bensummers 17y agoAdmin access, or a working Firewire port.varaon 17y agoWhy Firewire, specifically?mukyu 17y agoThe IEEE 1394 allows devices to make arbitrary DMA requests. Depending on your MMU and kernel this may allow it to read and write to the entire physical memory space including anything that may be mapped there from other devices.