I2C not supported on angstrom demo images ???


I use an Angstrom demo image Angstrom-Cloud9-IDE-eglibc-ipk-v2012.04 and Angstrom-Cloud9-IDE-eglibc-
I have used 2 pullup resistor 4,7K on SCL and SDL line.
I using a triple axis accelerometer breakout - BMA180 as a I2C slave for testing. At first a have tested the BMA180 with a mbed to check if
the slave device and I2C in general is working with this component.
After that I temped to do some tests with the beaglebone (I use beaglebone A3 and beaglebone A6).
I used i2ctools to check basic functions of i2c interface.
I have tested i2c1 (pin P9 Pin 17 and 18) and i2c3 (P9 Pin 19 and 20)

I have used

root@beaglebone:/sys/devices/platform/omap# i2cdetect -F -y 1
Functionalities implemented by /dev/i2c-1:
I2C yes
SMBus Quick Command no
SMBus Send Byte yes
SMBus Receive Byte yes
SMBus Write Byte yes
SMBus Read Byte yes
SMBus Write Word yes
SMBus Read Word yes
SMBus Process Call yes
SMBus Block Write yes
SMBus Block Read no
SMBus Block Process Call no
SMBus PEC yes
I2C Block Write yes
I2C Block Read yes