Hi Matthew, I'll propose a different approach. First, use universal IO to mux your pins for PWM. Then just use the PWM sysfs file system to deal with the rest.
So, I have not done this personally yet, but I know it's possible, as I've seen blog posts on it in the past. The universal io part I would probably need help from Charles as I've not that done with universal io either. But I suspect it's very simple. If you have further question on the subject I can help guide you. As I'd really lie to see people getting away from Adafruits BBIO whihc seems to be abandon ware now days On Tue, Jul 19, 2016 at 4:51 PM, <matthewwest...@gmail.com> wrote: > I'm trying to decipher how the Adafruit_BBIO Python library does PWM, in > preparation for supporting kernels 4.1+. The library currently loads a cape > file of the name "bone_pwm_P9_21" or whatever pin number. I've looked in > the /lib/firmware folder and there is no such .dtbo file. > > The elinux wiki page on the topic (http://elinux.org/Capemgr) says that > the capemgr checks in arch/arm/boot/dts/am335x-bone-common.dtsi for a > corresponding .dtbo file, or /lib/firmware. My question is: how can I read > that .dtsi file to know where it's getting the corresponding .dtbo? > > -- > 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/20f03625-d376-4379-883c-712a95d1c676%40googlegroups.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/CALHSORqtDb8O7KKSY2ExG5H2-uTQ536T%2Btt%2BH3zUSYjdsgZQwA%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.
