Re: Anyone use the 2 extra USB port mod and always power-on their slug via USB?
- --- In email@example.com, "pinforest" <pinforest@...>
> --- In firstname.lastname@example.org, Rod Whitby <rod@> wrote:
> > pinforest wrote:
> > > I would like to know if I can still always power-on my slug if
> > > my slug with 2 extra USB ports. Does anyone currently do this?
> > > anyone done this successfully in the past?
> > I can't see any reason why they would be related.
> > -- Rod
> Thanks for replying. I hope if I find someone to do the 2 extra
> port mod that the auto-power via USB method still works.I think the problem here is the wording of the question. The second
attempt at the question, appears to be referring to a specific
method of always powering the slug, the method I believe being
referred to is by sticking the 5v supply up a usb port rather than
using the power socket. If you use this particular method of always
powering the slug and have extra usb ports fitted will the slug
still always power up?
As for the answer, no idea, you'll have to try it.
However if your question is based on one of the other methods of
always powering up the slug, by using a solution which mimicks
pressing the button in some manner. I can't see why the additional
usb ports should create a problem.
I'm not currently using extra internal usb ports, however my own
personal powering up solution , checks for usb power and if not
present presses the button, which means that even if the slug
inadvertently shuts down it will automatically restart. Unlike the
one on the wiki which only does it's stuff when the power is first
Hopefully that has helped in some way, even if only to get the
original questioner to state specifically what powering up method
they are referring to and why they think there may be a problem.
- pinforest wrote:
>> I think the problem here is the wording of the question. The secondNo, there is nothing in the hardware that will change to prevent this
>> attempt at the question, appears to be referring to a specific
>> method of always powering the slug, the method I believe being
>> referred to is by sticking the 5v supply up a usb port rather than
>> using the power socket. If you use this particular method of always
>> powering the slug and have extra usb ports fitted will the slug
>> still always power up?
>> As for the answer, no idea, you'll have to try it.
> Hi, bullfrog's 1st interpretation of my question is what I meant. I'm
> using the no-modification always-power-on method via a powered USB
> HUB. I would like to know performing the extra 2 USB port mod would
> prevent the no-modification always-power-on method via a powered USB
> HUB from working.
(illegal) technique from working.
However, current is not supposed to be flowing backwards into the USB
host in the first place. So the fact that this works is rather an
accident, and there's no telling what might go wrong as nobody AFAIK has
studied the power distribution in the NSLU2 enough to know.
My first concern would be the current -- I'm not sure what your USB
device will do when it has to power itself, the NSLU2, and the three
other ports you'll have (that's about 2.5 - 3.0 amps of current, rather
more than the USB spec of 0.5 amps).
- pinforest wrote:
> I'm powering my slug via only 1 USB cable through a USB powered HUBIf you plug current-using devices into your other existing port or any
> that only supplies 0.5A. I don't think this setup will change if and
> when I find someone to add the 2 extra ports for me.
of the 2 extra ports, then you may find that 0.5A is not enough capacity
to drive both the NSLU2 and those USB bus-powered devices.
Indications of this happening are spontaneous reboots of the NSLU2, or
corruption of flash drives when writing.