Control GPIO simultanenously

tfungx

Hi,
I have an Up Square 6000 kit which comes with 40pin connector like that on Raspberry Pi.
My project need to use GPIO(s) to control RBG LED matrix.
However, I find that using GPIO sysfs is too slow for this.

I am wondering if there is a way many GPIO can be controlled/output simultaneously?
Basically bypassing the whole GPIO sysfs mechanism.

Can this be done?
If can, how ?

Looking earnestly for any help that may be granted.
Thanks in advance.

rreignier

Hi,
You can try the newer GPIO API of the kernel with libgpiod.

Here are some articles about it:

• https://www.cnx-software.com/2017/11/03/learn-more-about-linuxs-new-gpio-user-space-subsystem-libgpiod/
• https://www.ics.com/blog/gpio-programming-exploring-libgpiod-library

Kelly4B

@rreignier said:
Hi,
You can try the newer GPIO API of the kernel with libgpiod.

Here are some articles about it:

• https://www.cnx-software.com/2017/11/03/learn-more-about-linuxs-new-gpio-user-space-subsystem-libgpiod/ nox
• https://www.ics.com/blog/gpio-programming-exploring-libgpiod-library panda helper apk

Thanks for the link, Learned more from video tutorials from there,