Robert, Thanks. I have spent a good bit of time with the robotics cape through working with James Strawson. He has constructed a very good set of aps and library for newbies to use. Those are his main constituents, IMHO. I have been using his board without his code base with his help. He and I differ on certain value judgements, like using mmap for I/O access. So... If I'm not using his libraries and want to start capemgr and manually export and use BBB I/O and robotics cape I/O, how to do that? I tried using systemctl to start capemgr.service but don't see any results but don't know where its gripes would get posted. Clark
-----Original Message----- From: Robert Nelson [mailto:robertcnel...@gmail.com] Sent: Tuesday, July 11, 2017 12:37 PM To: Beagle Board <beagleboard@googlegroups.com> Cc: Clark Briggs <clark.bri...@ata-e.com> Subject: Re: [beagleboard] where is capemgr? On Tue, Jul 11, 2017 at 2:28 PM, <clarkbriggs...@gmail.com> wrote: > After watching the great progress, I started in. I have the 3/19/2017 > latest image with apt-get upgrades running on a Rev C BBB with a Rev C > Robotics Cape. All in all, the process worked well. But I can't find > capemgr. I went looking for it because I want to access analog I/O and > other stuff. Recent emails from here-ish say capemgr is supposed to be > in /sys/devices/platform but not. To get analog I/O, I put > "cape_enable=bone_capemgr.enable_partno=BB-ADC" in uEnv.txt, but no > /sys/bus/iio. > some info > debian@sim15:~$ uname -a > Linux sim15 4.4.54-ti-r93 #1 SMP Fri Mar 17 13:08:22 UTC 2017 armv7l > GNU/Linux debian@sim15:~$ cat /etc/dogtag BeagleBoard.org Debian Image > 2017-03-19 debian@sim15:~$ systemctl status capemgr.service ● > capemgr.service - Cape Manager Service > Loaded: loaded (/lib/systemd/system/capemgr.service; enabled; > vendor > preset: enabled) > Active: inactive (dead) since Tue 2017-07-11 18:46:54 UTC; 32min ago > Process: 4598 ExecStart=/bin/sh /opt/scripts/boot/capemgr.sh > (code=exited, > status=0/SUCCESS) > Main PID: 4598 (code=exited, status=0/SUCCESS) Jul 11 18:46:53 sim15 > systemd[1]: Starting Cape Manager Service... > Jul 11 18:46:54 sim15 systemd[1]: Started Cape Manager Service. The BB + Robotic Cape boots a special device tree binary, thus capemgr is disabled. the librobotic library expects this combination to have things setup a certain way, as it utilzes /dev/mem to access the gpio/adc/etc. As I don't have that cape, and it's still not listed for sale, this isn't going to change anytime soon. Regards, -- Robert Nelson https://rcn-ee.com/ -- 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. To view this discussion on the web visit https://groups.google.com/d/msgid/beagleboard/feb4a96ffe914b3e93c5e1e1d1328e0b%40Exchange1.ata-engineering.com. For more options, visit https://groups.google.com/d/optout.