[Cialug] Need help automating log capture/reboot

[Dave Hala]

I've ran into this few times over last couple of years, where the USB hub
does not have a large enough power supply when loaded up devices.

:) Dave

On Mon, Oct 9, 2017 at 3:17 PM, Justin Richeson <neomatrixjr at gmail.com>
wrote:

> So, I've got a bit of an odd power/hub setup, but it seems to work fine for
> everything else...
> I've got a powered hub...and the raspberry pi is plugged into that hub as a
> device and is being powered by the hub....on one of it's higher power
> "charge" ports.
> And then the hub is plugged in as a device of the pi so I can use the USB
> hub...as a hub.
> If memory serves then, into the hub I have my wifi stick, a USB stick, a
> USB-->Serial adapter for an X10 firecracker, and the pi.  I'll put a USB
> power analyzer on it again when I get home, but if memory serves it's had
> no power issues...and the pi never shows the power fault icon with this
> setup.
>
> This is the hub:
> http://a.co/aZsGba1
>
> *NOTE* I just noticed...looking at the hub's description, that the "charge"
> ports on the hub are just that...CHARGE ports.  In no way is the raspberry
> pi a device unto itself via the hub.  It's 7+2.  7 HUB ports + 2 Charge
> ports.
>
> On Mon, Oct 9, 2017 at 1:44 PM, L. V. Lammert <lvl at omnitec.net> wrote:
>
> > On Mon, 9 Oct 2017, David Champion wrote:
> >
> > > My first guess with the WiFi adapter is it's a power issue. Is the usb
> > > hubpowered or passive?
> > >
> > Probably plugged in directly, .. some other suggestion:
> >
> >  * A simple ping script would allow taking action (and recording to a
> >    separate log file) - suggest ifdn/ifup the USB interface as a first
> >    test.
> >
> >  * Swap the PS with a new 2A unit anyway. You can get them for a few
> bucks
> >    from China, or there are a number of US sources.
> >
> >  * Check the temp of the case and be sure you have decent ventilation
> >    around the unit - some cases might need a small fan for 24/7
> operation.
> >
> > Let us know what you find, ..
> >
> >         Lee
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> >
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