BananaPro/Pi: GPIO library
This page provides GPIO library notes for Banana Pro / Banana Pi and links to upstream documentation.
Quick guidance
- Prefer stable kernel interfaces (sysfs is legacy; character device interfaces are now common).
- If you need fast GPIO, confirm pinmux and kernel driver support.
Authoritative references
- Linux kernel GPIO documentation: https://docs.kernel.org/
- U-Boot docs (pinmux concepts): https://docs.u-boot.org/