Hi, During the last two weeks I've been working hard to get USB 3.0 support added to the FreeBSD 8+ USB stack. There are a couple of issues left, but right now the code is in a state were enumeration of USB devices is possible and there are no dirty hacks :-) The XHCI chip, which is the PCI interface for USB 3.0, is a replacement for OHCI/UHCI/EHCI and can also drive USB Super Speed (4.8 Gbps). I expect there to be a througput and performance increase when switching over to the XHCI interface also for 2.0 compatible devices, because it has a better data queuing mechanism. Currently all code has been committed to the USB P4 project at FreeBSD.org. You need to copy all files under sys/dev/usb + sys/modules/usb/xhci into 8- stable for example, and then build a new kernel. You need to manually to cd into sys/modules/usb/xhci and type make all install after you built the kernel. Reference: http://p4db.freebsd.org/changeList.cgi?FSPC=%2F%2Fdepot%2Fprojects%2Fusb%2Fsrc%2F...&USERS=hselasky&ignore=GO! Comments are welcome! --HPSReceived on Sat Aug 07 2010 - 17:47:26 UTC
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