Archive for the tag 'linux'

Connect NGW100 Linux (AVR32) to Arduino with I2C

For a Linux embedded training, I need to find something fun to plug on an AVR32 board. The board used for the training is a NGW100 board. I decided to try to use the I2C bus. I have several I2C stuff on the desk, but nothing really fun and I don’t want to solder a [...]

admin January 8th, 2012

Howto use AVR Dragon Jtag on Linux (Avarice + avr-gdb +DDD)

I bought a couple of months ago a little AVR Dragon card. My initial plan was to use it for debuging programs with the embbeded JTAG. But I run into several issue with that, mainly because the lack of doc on this topic. So, here we are ;)
The AVR Dragon is nice because you can [...]

admin November 30th, 2008

2D benchmarks on Linux Nvidia, Intel, ATI: xrender

For my new computer I bought a ATI HD 2600 PRO with a bunch of memory. This card has some really good 3D results, and works well on Linux. But I run into some issues with de xv extension on this board. In fact the driver (the free or binary one) doesn’t seems to support [...]

admin May 17th, 2008

Howto reinstall / restore Grub with an Ubuntu

After a windows fresh install, the windows setup decided to drop my MBR to put its stuff in. Fine .. but I want my grub back now !
This is an old trick, but udev added a little complexity, so let’s give it a try. First boot on a Ubunty CD, open a console and run:
(here [...]

admin October 30th, 2007

Playing with Realtime with Python

For a little app, I need to send stream over UDP at a fixed rate. I have done severals tests w/ some buffers and sleep(), but I can’t achieve the desired speed. Mainly because sleep() doesn’t provide a stable enought result.
I decided to look at this a little deeply, and decided to use /dev/rtc to [...]

admin January 24th, 2006

Playing music on soundcard without locking

Why this soundcard allow me to play 2 mp3 at the same time while this doesn’t.. Hum good question. In fact to support this kind of stuff the sound card should support have some sub-device, to be sure .. simply aplay -l
Here on my shuttle .. not working
aplay -l
**** List of PLAYBACK Hardware Devices ****
card [...]

admin February 9th, 2005

Suspend to disc with Dell Latitude D400 on Linux

I now have a Dell Latitude D400 for 1 month. This little (really small) computer is pretty nice to use, but it right now, it’s really hard to have suspend working on this kind of stuff. The main reason: it only support ACPI (no APM), and ACPI isn’t well supported by the Linux kernel.
I have [...]

admin October 24th, 2004

Linux Kernel Hackers remove the Philips USB Webcam support

Everybody hate binary kernel module: that’s clear, but sometimes that the only way to use some hardware.
This is really a bad news to all webcam users: USB kernel hackers decide to patch PWC kernel driver to avoid the use of the extended kernel module which is binary only. Check out this for more infos.
update: read [...]

admin August 26th, 2004

ATI Radeon on Linux / *BSD …

I always hated closed source drivers, and ATI is one of the big guy in video card. There is a petition online to ask ATI for specification or better drivers. I sign it because my ATI 9100IGP doesn’t have TVout support right now..

admin August 24th, 2004

Shuttle ST62K Zen Install Howto for Linux

Hardware
The Shuttle STK62K is a small XPC that use:

ATI IGP9100 video board
ATI IXP150 AC’97 Audio Controller
OHCI based USB 2
Realtek network card

As i run into different issue with that box, i decided to write a little howto. Look here for more infos
0000:00:00.0 Host bridge: ATI Technologies Inc: Unknown device 5833 (rev 02)
0000:00:01.0 PCI bridge: ATI Technologies [...]

admin July 2nd, 2004