[Cialug] Need help automating log capture/reboot

Justin Richeson neomatrixjr at gmail.com
Mon Oct 9 20:17:22 UTC 2017


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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