Ubuntu 10.10, 64Bit, Blue Tooth.

If your blue tooth is not working, here is a solution for you :D, fingers cross and hope it work. I have been searching the web ever since I got my brand new blue tooth keyboard over a year ago. Today I lucky stumble up on www.bluez.org and they just release a new bluez that claim to fix regression. Unfortunately ubuntu don't have it in the repository yet so I have to build it. Excited, I try it out and it works for me, hopefully it work for you too.

The solution is not perfect, but I have restarted my computer a few time and my blue tooth keyboard still worked nicely.

We are going to compile the latest bluez 4.81, with out the regression that have dread the ubuntu blue tooth since version 9.4(that when I got my beautiful keyboard)

Installing some dependency

sudo aptitude install build-essential bison zlib1g-dev zlib1g

Visit http://www.gtk.org/download-linux.html for the latest glib

wget http://ftp.gnome.org/pub/gnome/sources/glib/2.26/glib-2.26.1.tar.gz
cd /glib-2.26.1/
./configure
make 
sudo make install

Visit http://www.bluez.org for the latest drivers

wget http://www.kernel.org/pub/linux/bluetooth/bluez-4.81.tar.gz
tar -xvf bluez*.tar.gz
cd bluez-4.81
./configure
make
sudo make install

Restart your computer and it should work beautifully.

At this point I was feeling pretty happy so I play around abit and screw it up :D
If you are still experiencing problem try the following:
Check hciconfig in console

hciconfig 

hci0: Type: BR/EDR  Bus: USB
 BD Address: 00:1F:81:00:02:50  ACL MTU: 1021:4  SCO MTU: 180:1
 UP RUNNING PSCAN 
 RX bytes:80028 acl:4395 sco:0 events:52 errors:0
 TX bytes:617 acl:12 sco:0 commands:28 errors:0

If you see "UP RUNNING PSCAN", then you can start adding new devices and start using your blue tooth.

Otherwise do the following:
Bring down the interface

sudo hciconfig hci0 down

Bring up the interface

sudo hciconfig hci0 up

Bring the interface up can cause some problems.
If the interface keep timing out pull the blue tooth out and plug it back in.
If hciconfig complain about rfkill do the following

sudo rfkill unblock bluetooth

Go back and check

Hopefully ubuntu team integrate the new bluez fix as soon as possible.

Good Luck.

Forex MetaTrader 5 HCC to CVS

Meta Trader 5, store history data in HCC files.
The quickest ways to get all the history data is to run a Strategy Tester on the entire history.

History files are store at MetaTrader 5\Bases\MetaQuotes-Demo\history\.

Don't exactly know what's the entire structural, but know enough to extract what we want, the history data.

Data Structural


4 byte, seperator , little endian encoding 18385028, hex(84 88 18 01)
4 byte, time, int divisible by 60
8 byte, double open
8 byte, double high
8 byte, double low
8 byte, double close
1 byte, char | small int spread
1 byte, char | small int tick volume

The data repeat over and over for each day.

I made one in c++, it ugle :D,
Just switch to ubuntu again, lost all my IDE :(
SRC: http://example.citium.net/forex/HccReader.cpp
BIN: http://example.citium.net/forex/HccReader