From: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Date: Sun, 4 Aug 2019 08:07:57 +0000 (+0200)
Subject: tests: mockup: add a comment explaining the kernel version definition
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=fb15485948b46337a0b097aba6ed99c0ce9d9f5f;p=qemu-gpiodev%2Flibgpiod.git

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>
---

diff --git a/tests/mockup/gpio-mockup.c b/tests/mockup/gpio-mockup.c
index b2dc7e1..c7a3152 100644
--- a/tests/mockup/gpio-mockup.c
+++ b/tests/mockup/gpio-mockup.c
@@ -19,6 +19,10 @@
 #include "gpio-mockup.h"
 
 #define EXPORT			__attribute__((visibility("default")))
+/*
+ * The gpio-mockup features (including the debugfs interface) we're using
+ * in this library have first been released in the linux kernel version below.
+ */
 #define MIN_KERNEL_VERSION	KERNEL_VERSION(5, 1, 0)
 
 struct gpio_mockup_chip {