1w didn't work in that version of Linux. It works in 4.14 if you enable the
dtb file in uenv.txt. So I think you'll have to update.

It looks like it should support multiple devices, but we're only using one,
so I haven't tried.

Good luck.

-j

On Mon, Nov 18, 2019, 10:28 AM Fohnbit <[email protected]> wrote:

> Hello,
>
> I tried to enable 1-wire, but did not found some paths .. maybe my
> installation is different?
>
> I´m not sure what you need, so I write what I did so far:
>
> */boot/uEnv.txt:*
> #Docs: http://elinux.org/Beagleboard:U-boot_partitioning_layout_2.0
>
> uname_r=4.9.82-ti-r102
> #uuid=
> #dtb=
>
> ###U-Boot Overlays###
> ###Documentation:
> http://elinux.org/Beagleboard:BeagleBoneBlack_Debian#U-Boot_Overlays
> ###Master Enable
> enable_uboot_overlays=1
> ###
> ###Overide capes with eeprom
> uboot_overlay_addr0=/lib/firmware/BB-UART1-00A0.dtbo
> uboot_overlay_addr1=/lib/firmware/BB-UART4-00A0.dtbo
> uboot_overlay_addr2=/lib/firmware/BB-W1-P9.12-00A0.dtbo
>
> ###Cape Universal Enable
> enable_uboot_cape_universal=1
> ###
>
> ###U-Boot Overlays###
> cape_disable=bone_capemgr.disable_partno=BB-BONELT-HDMI,BB-BONELT-HDMIN
> cape_enable=bone_capemgr.enable_partno=BB-UART1,BB-UART4
>
> cmdline=coherent_pool=1M net.ifnames=0 quiet
>
> I connect P9.12 to the 1-wires ... also GND and VCC (5V)
>
> the first issue:
> I don´t have this folder.
> */sys/devices/bone_capemgr.9/slots*
>
> Did this mean I have a different version?
> But I have this folder:
> */sys/devices/w1_bus_master1/*
>
> So the 1-wire is loaded and working?
> I added:
>
> */etc/modules*
> w1-gpio
> w1-therm
>
>
> But no sensor is found:
>
> *cat /sys/devices/w1_bus_master1/w1_master_slaves*
> not found.
>
> I appreciate for help!
>
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