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| author | Christian Brueffer <brueffer@FreeBSD.org> | 2015-07-01 09:25:23 +0000 |
|---|---|---|
| committer | Christian Brueffer <brueffer@FreeBSD.org> | 2015-07-01 09:25:23 +0000 |
| commit | b28dfe657021ab64a246f27b37da85f2679e33b3 (patch) | |
| tree | a754109694d80f626a0914e894177ae0e0da5e7a | |
| parent | 4079836c5e531160cff0bf73ff8d0da7e7ead357 (diff) | |
| download | src-b28dfe657021ab64a246f27b37da85f2679e33b3.tar.gz src-b28dfe657021ab64a246f27b37da85f2679e33b3.zip | |
Make the example code actually work.
PR: 199440
Submitted by: waitman@waitman.net
Reviewed by: loos
MFC after: 1 week
Notes
Notes:
svn path=/head/; revision=284997
| -rw-r--r-- | lib/libgpio/gpio.3 | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/lib/libgpio/gpio.3 b/lib/libgpio/gpio.3 index 70f6b38c0622..27925f09108d 100644 --- a/lib/libgpio/gpio.3 +++ b/lib/libgpio/gpio.3 @@ -35,6 +35,7 @@ .Sh LIBRARY .Lb libgpio .Sh SYNOPSIS +.In sys/types.h .In libgpio.h .Ft "gpio_handle_t" .Fn gpio_open "unsigned int unit" @@ -161,13 +162,14 @@ are wrappers around The following example shows how to configure pin 16 as output and then drive it high: .Bd -literal +#include <sys/types.h> #include <err.h> #include <libgpio.h> gpio_handle_t handle; handle = gpio_open(0); -if (handle == GPIO_HANDLE_INVALID) +if (handle == GPIO_INVALID_HANDLE) err(1, "gpio_open failed"); gpio_pin_output(handle, 16); gpio_pin_high(handle, 16); |