December 29, 2010

SmartQ V7 Linux under QEMU

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This mini howto should work with another versions of SmartQ. It only run with some limited features (no X environment, only with nxPADD firmware and it extremly slow). You can get the nxPADD firmware in this post.

You need to have a working QEMU installation with arm support. You also need this kernel (if you have another working kernel put the link as a comment).

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SmartQ V7 Custom Linux

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Here is a small How To customize Linux on SmartQ V5/V7.
If you need more information you can look here: http://www.smartqmid.com/wiki/index.php?title=V5/V7_Linux_Development_Guide

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December 25, 2010

gnome-power-statistics history file

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The Gnome Power Statistics (an applet for Gnome Panel) show chart (with limited options) of the battery charge (10 minutes, 2 hours, 1 day, 1 week) without the possibility to select an arbitrary interval.
After been reading the source code of this applet I’ve found that it get the data from DeviceKit (Devkit). Once again I check the source code of Devkit and I found that the data is stored in: /var/lib/upower/ (on Gentoo).
So now you can plot this data with another tool (OpenOffice do the trick easily).