Chris’ Miscellanea

My place to post silly pictures and rants, even though I’m no longer a PhD-student.

Sunday, February 09, 2014

Riso Kagaku Corp Webmail Notifier Redux: Kernel Module Cleanup

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Trying to clean up this code, so that it's usable without too much friction... I put up my slightly modified version of the usbled.c ker...
Friday, October 25, 2013

DeLock 61114 uses a NEC Corporation uPD72873 (µPD72873) Chipset (Cardbus Firewire Interface)

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I got myself a Cardbus FireWire card, namely a DeLock 61114 . As it's always very hard to find the Chipset used for a particular card,...
Sunday, October 20, 2013

Notes: More Toradex-T20 Stuff...

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So, I've wasted (again) too much time on the Toradex T20 I've written about earlier . It was collecting dust all of the time, but it...
Sunday, September 22, 2013

DCF77 via GPIO on the Raspberry Pi (patched radioclkd2)

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Update 2015-02-15, see below. Update 2016-02-14, see even farther below. After replacing my old linux-PC based router with a Telco-suppli...
13 comments:
Monday, September 02, 2013

Webmail Notifer, Linux Kernel Module

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This is an update on the Webmail Notifier , a cheap chinese gadget that's nothing more than a RGB LED connected via USB. In this case, i...
Wednesday, July 03, 2013

Repairing an Alesis IO26

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There's a really common way to kill your firewire-devices , which is to forcefully plug in the 6-pin connector , carrying both supply po...
8 comments:
Sunday, June 09, 2013

Audix APS 910 - Inline Phantom Adapter

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This adapter allows you to connect "normal" electret-type microphones to differential, phantom-powered inputs, like the ones to be...
Friday, May 31, 2013

Reboot your Arch-linux running computer early, in case some vital component failed to initialize (a.k.a. e1000e_fsckup_initcpio)

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Ok, so this is embarrassingly primitive, but so that I don't loose it ( again ), I put this small script on github. Maybe someone else h...
Thursday, May 30, 2013

Antlers (May 2013 edition)

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I was on vacation again, so here's the obligatory antlers picture. I already posted another one elsewhere, but that was taken with the (...
Sunday, May 19, 2013

Wireless on Raspberry π, Power Issues

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I'm playing with a Accellerometer/Gyroscope/Magnetometer board  (ebay, link probably stale soon), and to have it somewhat mobile, I'...
Sunday, March 31, 2013

Happy Easter

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And remember: As long as the eggs aren't completely covered in snow, it's spring enough. From 2013-03-31
Friday, March 29, 2013

Webmail Notifier - Linux Hidraw

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I got myself a plastic toy: A small box with a controlable LED that can be turned on- or off, with the intention of notifying the user of un...
Saturday, February 09, 2013

AES/EBU to ‘SPDIF’  - ghetto style

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For interfacing AES/EBU to S/PDIF , I've built a simple transformer out of a small ferrite core, I was planning to convert the 110Ω sy...
Monday, January 14, 2013

M-Audio Fast-Track Pro PCB Pictures

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I'm a little annoyed by the limitations of the M-Audio Fast-Track Pro, so I'm thinking about how to mod it. My main grief is the aby...
5 comments:
Thursday, January 10, 2013

Note: Archlinux and Xorg Keyboard Layout

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Archlinux for me seems to miss any magic  that takes care of automatically providing the correct keymap to xorg's input driver . To mak...
Friday, December 28, 2012

☠⚠⚡☔☣☢☹⛈ Windows 8...

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Got myself Win8 for €30 (upgrade from a old Student-for-Free Vista license I never used, instead of €150 it looked like a bargain). My norma...
Sunday, December 16, 2012

Betty Remote

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A friendly colleague gave me a Betty Remote . It's a marvelous device as a dirt-cheap ARM7 (LPC2200) eval board and flashing worked so ...
Thursday, December 06, 2012

Note: Archlinux on the Toradex T20

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Update (November 2016):  Archlinux on the Toradex T20 (with Archlinux' kernel) A lot of people got hold of a Toradex T20 board which w...
Monday, November 26, 2012

MOTU 882 MK2 Mic Preamp Input

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Today I disassembled a MOTU 882 MK2 Audio Interface that exhibited significantly increased noise on one of the microphone preamplifier input...
Monday, November 19, 2012

ligthdm: custom app on login screen

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It's not rocket science, but it took me a while to collect all the pieces, so here's a short summary, mainly to serve as a reminder ...
4 comments:
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