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Just do this

rmmod all module concerning usb : ehci uhci ohci

ehci = usb 2 extension

uhci/ohci = usb support (1.0) depends on material (via or intel)

so ...

plug your material

modprobe uhci ... nothing done, rmmod uhci, modprobe ohci ..

try the material

if all work, add usb2 support

modprobe ehci

so ... still hang up ?
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