UltraBlock not Working Via FireWire 400/1394A With Linux Kernel 2.6.17 or Earlier

Written By:
Dave Kelsey
Last Edited:

If your computer has a 1394B (FireWire 800) host adapter, then older Linux kernel releases will try to communicate at FireWire 800 speed even when 6-pin FireWire 400 cabling is used.

To avoid this problem, either use only 9-pin FireWire 800 cabling or switch to Linux kernel 2.6.18 or newer. These kernel releases are capable of downgrading to FireWire 400 speed when using 6-pin cables.

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