Not relevant to this thread but hope my question s not out of line:
May I have recommendations of one or two non-crappy hubs available in U.S?
Thanks,
Peter
On Mon, Dec 9, 2013 at 2:15 PM, Jan Kandziora <j...@gmx.de> wrote:
> Am 09.12.2013 22:11, schrieb Arne Raaen:
> >
> > The problem arose (probably) at a brief power failure, i.e. an abrupt
> > shutdown followed by restart once power returned.
> >
> Ok, given all the other suggestions this should mean the FTDI or LINKs
> hardware is failing.
>
> Anyway, try rmmoding the hcd modules. That way the USB is de-powered as
> long the board supports controlling the USB power by software. You can
> also try with
>
> /sys/bus/usb/devices/*/power/level
>
> to change the power line for each port separately. But some boards have
> USB-power hard-wired to +5V_STB, obviously that won't work with these
> boards. In that unlucky case you can use an intermediate hub and control
> this hub's power lines. That said: BEWARE FOR CRAPPY USB HUBS! Most of
> them are. Find a decent one or you'll get even more problems.
>
>
> Kind regards
>
> Jan
>
>
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