device tree overlays go into /lib/firmware On Sat, Oct 15, 2016 at 8:14 AM, Dennis Lee Bieber <wlfr...@ix.netcom.com> wrote:
> On Sat, 15 Oct 2016 01:53:34 -0700 (PDT), Sebastien Capel > <sebastiencapel...@gmail.com> declaimed the > following: > > >Hello, > >I'm following a tutorial to learn to use beaglebone, and to change gpio > > How old is that tutorial... What OS build was it based upon, and > what > OS build are you running? > > >configuration for each boot... > > > >I compile an DTBO file and i try to copy it in the following location: > >/sys/firmware with the command: > >*sudo cp myFile.dtbo /sys/firmware* > >But, the system return me : > >cp: cannot create regular file `/sys/firmware/myFile.dtbo`: No such file > or > >directory > >Of course my file exist ... > > Note that the error message is not about the file your trying to > copy, > but about where you are trying to put it... > > http://kilobaser.com/blog/2014-07-15-beaglebone-black-gpios > implies that overlays are stored in /lib/firmware -- not /sys/firmware. And > to activate an overlay you have to "echo" the name to the capemanager > slots. > > Most of the /sys "files" are not really files, as I understand it, > but > rather entries created by the kernel which really actuate code when > read/written. > > {warning -- even that link is a bit out of date; current builds no longer > have a FAT partition, and Jessie uses systemd instead of the older init > system} > > > > > >So i dont know what i shoud do to realise that... > > > >Please help me! And sorry for my poor English... > -- > Wulfraed Dennis Lee Bieber AF6VN > wlfr...@ix.netcom.com HTTP://wlfraed.home.netcom.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/80h40c1nlt0c4v5vj8ajsur5kr3g733ir7%404ax.com. > For more options, visit https://groups.google.com/d/optout. > -- 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/CALHSORqYgpy3F8NyNX_BWqEqO0x%3D6o_Xj1ThNma7a2yj0M%2B0yg%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.
