>
> *__fixups__ {*
> * tscadc = "/fragment@0:target:0";*
> * };*
>
> *NO idea what this does . . . Anyway, below is just the basic BBB-ADC
> overlay provided from the bb.org-overlay git. Atleast, I do not think I've
> modified it any . . .*
>
Now, I know what the above "code" is doing. Pretty obvious, now that I do
not have *everything* related on my mind ;)
On Sat, Nov 7, 2015 at 4:35 PM, William Hermans <[email protected]> wrote:
> Ok, I got something working, partly by luck, and partly by intuition. I
> still do not know what the hell I'm doing with device tree files . . . but
> everything makes sense.
>
> /dts-v1/;
> /plugin/;
>
> / {
> compatible = "ti,beaglebone", "ti,beaglebone-black";
>
> /* identification */
> part-number = "WH-ADC";
> version = "00A0";
>
>
> fragment@0 {
> target = <&tscadc>;
> __overlay__ {
> compatible = "uio";
> uio-alias = "adc";
> status = "okay";
> };
> };
> };
>
>
> $ dtc -O dtb -o WH-ADC-00A0.dtbo -b 0 -@ WH-ADC-00A0.dts
> $ sudo cp WH-ADC-00A0.dtbo /lib/firmware/
> $ sudo sh -c "echo 'WH-ADC' > /sys/devices/platform/bone_capemgr/slots"
>
> $ dmesg | grep WH-ADC
> [ 1290.096328] bone_capemgr bone_capemgr: part_number 'WH-ADC', version
> 'N/A'
> [ 1290.116039] bone_capemgr bone_capemgr: slot #5: 'Override Board
> Name,00A0,Override Manuf,WH-ADC'
> [ 1290.137733] bone_capemgr bone_capemgr: slot #5: dtbo
> 'WH-ADC-00A0.dtbo' loaded; overlay id #0
>
> $ ls /dev/uio
> adc
>
> $ ./lsuio
> uio0: name=tscadc, version=devicetree, events=0
> map[0]: addr=0x44E0D000, size=4096
>
>
>
>
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