Bug 251390

Summary:

new kernel module for GPIO input interrupt to kevent

Product:

Base System

Reporter:

Oskar Holmlund <oskar.holmlund>

Component:

kern

Assignee:

freebsd-arm (Nobody) <freebsd-arm>

Status:

New ---

Severity:

Affects Only Me

Priority:

---

Version:

CURRENT

Hardware:

arm

OS:

Any

Attachments:

Description	Flags
simple kernel module for catching Interrupts and forward to a kevent	none

Description Oskar Holmlund 2020-11-26 01:58:47 UTC

Created attachment 219983 [details]
simple kernel module for catching Interrupts and forward to a kevent

Tested on Beaglebone Black
Button connected on P8_8 and P8_10 (change devicetree if you want any other pins)
(Random wiring diagram: https://learn.adafruit.com/connecting-a-push-button-to-beaglebone-black/wiring )

- Compile the devicetree and place the dtbo file in /boot/dtb/overlays/BB-GPIOIITK.dtbo.
- Add to /boot/loader.conf fdt_overlays="BB-GPIOIITK.dtbo"
- Build kernel module (make) and load it kldload gpioiitk.ko
- Build test application (cc test.c)