tests: mockup: add a comment explaining the kernel version definition
authorBartosz Golaszewski <bgolaszewski@baylibre.com>
Sun, 4 Aug 2019 08:07:57 +0000 (10:07 +0200)
committerBartosz Golaszewski <bgolaszewski@baylibre.com>
Sun, 4 Aug 2019 08:13:21 +0000 (10:13 +0200)
commitfb15485948b46337a0b097aba6ed99c0ce9d9f5f
treea80b9be43f9c40709ed8051561a332daa1c424c4
parent90e4dba270ac06420d5df2938013e595f447b5b7
tests: mockup: add a comment explaining the kernel version definition

The library only works on newer kernels. The specific features we're
using have only available since linux v5.1.0. Add a comment explaining
this limitation to the library code.

Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
tests/mockup/gpio-mockup.c