path: root/samples
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authorJiri Kosina <jkosina@suse.cz>2013-03-27 17:29:18 +0100
committerJiri Kosina <jkosina@suse.cz>2013-03-27 17:29:18 +0100
commitf37130533f68711fd6bae2c79950b8e72002bad6 (patch)
treef662002862fcd1ee00668a8ef437d3daa86066a3 /samples
parent4e55467efbc7e52e9e0d8c797c72e6b45c5ee270 (diff)
HID: hidraw: warn if userspace headers are outdated
Put a warning into sample hidraw code in samples/hidraw/hid-example.c in case the userspace headers are missing the necessary defines and need to be updated. Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Diffstat (limited to 'samples')
1 files changed, 1 insertions, 2 deletions
diff --git a/samples/hidraw/hid-example.c b/samples/hidraw/hid-example.c
index 816e2dcda7ca..512a7e50bcae 100644
--- a/samples/hidraw/hid-example.c
+++ b/samples/hidraw/hid-example.c
@@ -17,10 +17,9 @@
* Ugly hack to work around failing compilation on systems that don't
* yet populate new version of hidraw.h to userspace.
- *
- * If you need this, please have your distro update the kernel headers.
+#warning Please have your distro update the userspace kernel headers
#define HIDIOCSFEATURE(len) _IOC(_IOC_WRITE|_IOC_READ, 'H', 0x06, len)
#define HIDIOCGFEATURE(len) _IOC(_IOC_WRITE|_IOC_READ, 'H', 0x07, len)

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