Hello there,
I would like to increase the SPI's buffer size from default 4096 bytes to 65536 bytes (or highest possible) to do some real time sampling with the BBB.
I have tried various methods and none of them yielded any results-
modprobe spidev bufsiz=65536 I checked the spi bufsiz after " cat /sys/module/spidev/parameters/bufsiz" and it reported 4096 still
I typed in "rmmod spidev" afterwards and it reported spidev is being used by some program that I am not aware of.
Then, I tried to change the parameter directly by changing bufsiz through vim
cd /sys/module/spidev/parameters
chmod 066 bufsiz //gives rw permissions
vim bufsiz
Vim reports E677: Fsync failed as I tried to quit and exit the program.
Can someone please help? Very much appreciated
Cheers,
David