Yes, 'sudo root-arm' did the job! It working fluently now.
Thanks a lot.
Best,
Rob.
-----Original Message-----
From: Andy Green [mailto:andy.gr...@linaro.org]
Sent: 28. maj 2013 04:29
To: Christoffer Dall
Cc: Robert Brehm; linaro-dev@lists.linaro.org
Subject: Re: arm-probe (with ARM Energy probe)
On 28/05/13 09:23, the mail apparently from Christoffer Dall included:
> [...]
>
>
> I noticed that on this laptop with USB3 ports, AEP won't work plugged in
> direct (LMP, using a similar NXP chip are the same). They need to be
> connected via a USB2 hub in order to work. Maybe that's something to do
> with it.
>
>
> Are you by any chance running from within a VM on a mac? I've seen
> similar behavior in that scenario.
>
> Also, have you tried running as sudo just to verify it's not a
> permission issue? I seem to remember this happening for me once in a
> while too when I was running power measurements, and only some
> combination of fully resetting the probe and booting the machine did
> the trick, for whatever it's worth.
It's x86_64 Fedora directly on an Intel laptop with only 2 x USB3 ports, with a
rawhide 3.10-rc"0" kernel. It's quite possible it's a quirk of the driver for
that particular host controller, but there is no problem via even a very cheap
USB2 hub.
About root yes depending what groups your user is in or what udev has got, you
need to run arm-probe or aepd as root just to access the ttyACM.
-Andy
--
Andy Green | Fujitsu Landing Team Leader Linaro.org │ Open source software for
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