Phil Elwell

The problem is as I thought - the sc16is75x overlays don't make the interrupt pins into GPIO inputs. We get away with this on the older Pis because an input...

[ Edited to correct the install instructions, which should be `sudo rpi-update pulls/6111` ]

Oh dear - the spi1 variant differs from the spi0 version in structure, and in making the changes (which I tested on the I2C version of the HAT) I ended...

It shouldn't be long this time - not more than a week or two.

Comments added.

1. The "no matching platform" warning comes from using a version of the dtoverlay support that pre-dates the Pi 5. You can build and install an update (it's quick and...

If you're still getting `DTOVERLAY[warn]: no matching platform found` then you haven't updated the dtmerge utilities.

This issue appears to be Pi 5-specific - which is interesting considering that the CS lines are managed by the SPI framework as regular GPIOs. It's also worth saying explicitly...

This behaviour is caused by a quirk of the RP1 SPI interface, and a deficiency in the driver to handle it. https://github.com/raspberrypi/linux/pull/6161 should be a fix for it. Wait about...

Thanks for the feedback. The fix has been merged, and will be included in future kernel releases.