Check out my website "tunapiano.info" where I spell out in detail the ina and outs of getting the BBB to read the ds18b20's. Run the "SetupPins.sh" scriprt I wrote. That may just make it work or it will at least show you everything you have set up and what you may be missing. I didn't analyze these post in detail but I think the part you are missing is the the:
BBB2_revC root@192.168.1.118 Tue Nov 25 20:09:42 /sys/class/gpio > ls -al total 0 drwxr-xr-x 2 root root 0 Dec 31 1999 . drwxr-xr-x 59 root root 0 Dec 31 1999 .. --w------- 1 root root 4096 Apr 23 2014 export lrwxrwxrwx 1 root root 0 Apr 23 2014 gpio44 -> ../../devices/virtual/gpio/gpio44 lrwxrwxrwx 1 root root 0 Apr 23 2014 gpio60 -> ../../devices/virtual/gpio/gpio60 lrwxrwxrwx 1 root root 0 Dec 31 1999 gpiochip0 -> ../../devices/virtual/gpio/gpiochip0 lrwxrwxrwx 1 root root 0 Dec 31 1999 gpiochip32 -> ../../devices/virtual/gpio/gpiochip32 lrwxrwxrwx 1 root root 0 Dec 31 1999 gpiochip64 -> ../../devices/virtual/gpio/gpiochip64 lrwxrwxrwx 1 root root 0 Dec 31 1999 gpiochip96 -> ../../devices/virtual/gpio/gpiochip96 --w------- 1 root root 4096 Dec 31 1999 unexport BBB2_revC root@192.168.1.118 Tue Nov 25 20:09:44 /sys/class/gpio > And in the new directory you create by exporBBB2_revC root@192.168.1.118 Tue Nov 25 20:11:16 /sys/class/gpio/gpio44 > ls -al total 0 drwxr-xr-x 3 root root 0 Apr 23 2014 . drwxr-xr-x 8 root root 0 Dec 31 1999 .. -rw-r--r-- 1 root root 4096 Nov 25 20:11 active_low -rw-r--r-- 1 root root 4096 Nov 21 09:47 direction -rw-r--r-- 1 root root 4096 Nov 25 20:11 edge drwxr-xr-x 2 root root 0 Nov 25 20:11 power lrwxrwxrwx 1 root root 0 Apr 23 2014 subsystem -> ../../../../class/gpio -rw-r--r-- 1 root root 4096 Apr 23 2014 uevent -rw-r--r-- 1 root root 4096 Nov 25 20:10 value BBB2_revC root@192.168.1.118 Tue Nov 25 20:11:19 /sys/class/gpio/gpio44 >ting the pin you get subdirs like this: Look carefully at the SetupPins.sh where you see how the value and dicection virtual file system members are set up. Derek Molloy has many great youtube videos for get the BBB to work with DTO. -- 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 beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
