> > *That's correct, every pin is configured. And the load the driver for > PWM, or SPI, or ... but it is not configured to load the OneWire driver for > the pin. All of the config-pin options are for standard drivers. The > point is, if you want to use the pin to another device that is not a built > in device then one needs to do something different.* >
How was the pin configured before ? There is no one wire peripheral module, so it must have been configured as GPIO. As far as one-wire goes I have never used it before, but have read it is basically a modified I2C protocol(somehow ). If I was able to look at the device tree file you use before. Perhaps I could offer assistance. On Thu, May 12, 2016 at 10:38 AM, Ray Madigan <raymond.madi...@gmail.com> wrote: > That's correct, every pin is configured. And the load the driver for PWM, > or SPI, or ... but it is not configured to load the OneWire driver for the > pin. All of the config-pin options are for standard drivers. The point > is, if you want to use the pin to another device that is not a built in > device then one needs to do something different. > > On Thursday, May 12, 2016 at 10:20:37 AM UTC-7, William Hermans wrote: >> >> *Because the universal overlay causes my one wire overlay to be rejected. >>> The error is File Exists and dmesg points to the conflict with the slots >>> entry that has the conflict. I am probably doing something wrons, even >>> when I delete the P9_22 from the universal overlay and reapply it, it >>> rejects my overlay.* >> >> >> Because the pin is already configured. *Every* pin is configured when you >> use universal io. Plus the point of using universal io is so you do not >> have to configure the pin through an overlay. So learn how to use universal >> io + config-pin to configure the pin. >> >> >> On Thu, May 12, 2016 at 9:05 AM, Ray Madigan <raymond...@gmail.com> >> wrote: >> >>> Because the universal overlay causes my one wire overlay to be >>> rejected. The error is File Exists and dmesg points to the conflict with >>> the slots entry that has the conflict. I am probably doing something >>> wrons, even when I delete the P9_22 from the universal overlay and reapply >>> it, it rejects my overlay. >>> >>> I am working on this from two perspectives, i need to be able to get >>> back to work :). I am building a non universal overlay that will include >>> my one wire pin, the pwm pins I need, and others as I work out my >>> application. I will use this until I figure out the universal overlay >>> issue. >>> >>> I have never written an overlay that uses two pins on the same device, I >>> am working that out now. >>> >>> On Thursday, May 12, 2016 at 8:41:41 AM UTC-7, TJF wrote: >>>> >>>> Why don't you adapt the 1-wire overlay? It should be easy to use a pin >>>> not connected to any PWMSS. Ie. use P9_11 or P8_07. >>>> >>> -- >>> 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...@googlegroups.com. >>> To view this discussion on the web visit >>> https://groups.google.com/d/msgid/beagleboard/5dc3979a-1d78-45d1-82d0-dea8b8004a14%40googlegroups.com >>> <https://groups.google.com/d/msgid/beagleboard/5dc3979a-1d78-45d1-82d0-dea8b8004a14%40googlegroups.com?utm_medium=email&utm_source=footer> >>> . >>> >>> 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/b53b6116-848f-4e97-8f68-34164f115300%40googlegroups.com > <https://groups.google.com/d/msgid/beagleboard/b53b6116-848f-4e97-8f68-34164f115300%40googlegroups.com?utm_medium=email&utm_source=footer> > . > > 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/CALHSORrbbScPNEEN4KAop8KJ9S5NmOLqZ633ig%2BTjXhe9UAvNg%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.
