Thanks. I was able to use the device tree compiler to make the analog inputs
available. I started with:
ubuntu@arm:~$ ls /sys/bus/iio/devices/iio\:device0
buffer in_voltage4_raw in_voltage6_raw power subsystem
dev in_voltage5_raw name scan_elements uevent
The commands I used to add analog inputs 0-3 are:
$ sudo apt-get install device-tree-compiler
$ sudo dtc -I dtb -O dts /boot/uboot/dtbs/am335x-boneblack.dtb >
am335x-boneblack.dts
Change the section:
adc {
#io-channel-cells = <0x1>;
compatible = "ti,am3359-adc";
ti,adc-channels = <0x4 0x5 0x6>;
};
to
adc {
#io-channel-cells = <0x1>;
compatible = "ti,am3359-adc";
ti,adc-channels = <0x0 0x1 0x2 0x3 0x4 0x5 0x6>;
};
then recompile, install and reboot:
$ dtc -O dtb -o am335x-boneblack.dtb am335x-boneblack.dts
$ sudo cp am335x-boneblack.dtb /boot/uboot/dtbs
Once rebooted, the devices show up:
ubuntu@arm:~$ ls /sys/bus/iio/devices/iio\:device0
buffer in_voltage0_raw in_voltage2_raw in_voltage4_raw in_voltage6_raw
power subsystem
dev in_voltage1_raw in_voltage3_raw in_voltage5_raw name
scan_elements uevent
ubuntu@arm:~$
-- jda
--
For more options, visit http://beagleboard.org/discuss
---
You received this message because you are subscribed to the Google Groups
"BeagleBoard" group.
To unsubscribe from this group and stop receiving emails from it, send an email
to [email protected].
For more options, visit https://groups.google.com/d/optout.
