I followed the quick start guide, essentially
==========================
1. checked out krogoth
ran:
2. source oe-init-build-env
3. Changed config file to enable BEAGLEBONE
MACHINE ?= "beaglebone"
ran
4. $ bitbake core-image-sato
5. Found steps to build image on micro SD
Successfully booted from microSD and got login prompt on serial port and
a graphical output on HDMI.
6. Tested control of LEDs
I was able to follow these steps to control the 4 LEDs on the board
Set LED = 53-56 and run this
echo $LED > /sys/class/gpio/export
echo out > /sys/class/gpio/gpio$LED/direction
Then I can set each LED by writing a $VAL of either 1 or 0 turn turn on
and off the LED:
echo $VAL > /sys/class/gpio/gpio$LED/value
==================================
All of this is great but I want access to the Analog to Digital pins to
read an analog value on one of the pins.
The only instructions I can find claim I have to do the following to
create the ain* devices
|echo cape-bone-iio > /sys/devices/bone_capemgr.*/slots|
But on my machine I don't have a /sys/devices/bone_capemgr directory.
So, I don't know if these steps apply to Yocto kernel or not, or if I
need to enable a kernel config option that isn't enabled by default to
get the bone_capemgr directory to appear.
How do I get access to the Analog to Digital pins on the BeagleBone
Black board in Yocto ?
Any pointers appreciated.
Thanks
Chris Kottaridis
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