Thanks for all your comments. Is there any mapping between /sys/class/gpio and schematic diagram of Beaglebone Black board?
I want to use pin P9_24 (UART1_TXD) and P9_26 (UART1_RXD). https://beagleboard.org/static/beaglebone/BEAGLEBONE_SCHEM_A3.pdf (page 11/11) Dátum: štvrtok 24. júna 2021, čas: 18:11:14 UTC+2, odosielateľ: Dennis Bieber > On Thu, 24 Jun 2021 07:17:59 -0400 (EDT), in > gmane.comp.hardware.beagleboard.user Robert Heller > <heller-2/ccJrXdU8tWk0Htik3J/w...@public.gmane.org> wrote: > > >At Thu, 24 Jun 2021 03:47:49 -0700 (PDT) beagleboard-/ > jypxa39uh5...@public.gmane.org wrote: > > > >> > >> I have complex Java application where using GPIO is only part of it. > > > >OK, probably the "easiest" (and Linux-only) way to add GPIO access is use > the > >sysfs interface. > > > At least until the Linux developers remove it... My understanding is > that sysfs is currently "deprecated", the replacement being libgpiod -- a > "character" device driver. > > Unfortunately, for libgpiod, JAVA probably needs an interface library > to be created -- quick search finds > https://github.com/mattjlewis/diozero (though there are some mentions of > sysfs in the commentary, but perusing > > https://github.com/mattjlewis/diozero/blob/main/system-utils-native/src/main/c/com_diozero_internal_provider_builtin_gpio_NativeGpioDevice.c > appears to be the libgpiod chip devices). > > There is also this one https://github.com/sgjava/java-periphery > > > -- > Dennis L Bieber > > -- 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/35d9167b-14d0-4aca-997f-769d5297330bn%40googlegroups.com.
