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| author | Jiri Kosina <jkosina@suse.cz> | 2013-03-27 17:29:18 +0100 |
|---|---|---|
| committer | Jiri Kosina <jkosina@suse.cz> | 2013-03-27 17:29:18 +0100 |
| commit | f37130533f68711fd6bae2c79950b8e72002bad6 (patch) | |
| tree | f662002862fcd1ee00668a8ef437d3daa86066a3 /samples/hidraw | |
| parent | 4e55467efbc7e52e9e0d8c797c72e6b45c5ee270 (diff) | |
| download | lwn-f37130533f68711fd6bae2c79950b8e72002bad6.tar.gz lwn-f37130533f68711fd6bae2c79950b8e72002bad6.zip | |
HID: hidraw: warn if userspace headers are outdated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/hidraw')
| -rw-r--r-- | samples/hidraw/hid-example.c | 3 |
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. */ #ifndef HIDIOCSFEATURE +#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) #endif |