I am using Neopixel SPI to control addressable LED light. Initially, the bufsiz was 4096 which I was able to control 168 LED. I increased the bufsize to 65535 using:
sudo nano /etc/modprobe.d/spidev.conf
options spidev bufsiz=65535
gives me 65535
But I still cannot control more than 168 LED.
Is there another way to check my buffer size? and this buffer size is directly related the the 19 MOSI pin output?