The hardware SPI mode code does wacky things when brightness is not 0 (usually leaves a green pixel, but it flickers during updates.) This is because you're transmitting the raw mode IOCTL structures as data rather than the header and footer payload. Here's the fix:
The hardware SPI mode code does wacky things when brightness is not 0 (usually leaves a green pixel, but it flickers during updates.) This is because you're transmitting the raw mode IOCTL structures as data rather than the header and footer payload. Here's the fix:
https://gist.github.com/EricBayer/d1be199ec684c425c0a8