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| -rw-r--r-- | Documentation/gpio.txt | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/Documentation/gpio.txt b/Documentation/gpio.txt index 36af58eba136..218a8650f48d 100644 --- a/Documentation/gpio.txt +++ b/Documentation/gpio.txt | |||
| @@ -75,6 +75,9 @@ using the include file: | |||
| 75 | If you stick to this convention then it'll be easier for other developers to | 75 | If you stick to this convention then it'll be easier for other developers to |
| 76 | see what your code is doing, and help maintain it. | 76 | see what your code is doing, and help maintain it. |
| 77 | 77 | ||
| 78 | Note that these operations include I/O barriers on platforms which need to | ||
| 79 | use them; drivers don't need to add them explicitly. | ||
| 80 | |||
| 78 | 81 | ||
| 79 | Identifying GPIOs | 82 | Identifying GPIOs |
| 80 | ----------------- | 83 | ----------------- |