Virtual GPIO emulation

Question

Does exist a virtual GPIO driver to be used for a programming needs?

I have to develop a software on my Linux PC, and then try it on some embedded systems with physical GPIOs (C.H.I.P., OpenWRT, and so on...)?

Thank you!

Answer 1

The solution exists and is available since kernel 4.10 as GPIO mockup driver.

Some references for you:

• https://github.com/torvalds/linux/blob/v4.10/tools/testing/selftests/gpio/gpio-mockup.sh
• https://github.com/torvalds/linux/blob/master/drivers/gpio/gpio-mockup.c