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authorJiri Kosina <jkosina@suse.cz>2011-04-09 01:43:18 +0200
committerJiri Kosina <jkosina@suse.cz>2011-04-09 01:43:18 +0200
commitcb3e85fe19575cce8af82bc62a070c72e8f781b8 (patch)
tree4edd10237fd2fed23caf1044a12bae07cf2e8b69 /samples
parent1a978c50c6cff743c3516ffa6d2ce44382e7b70b (diff)
downloadlinux-linaro-cb3e85fe19575cce8af82bc62a070c72e8f781b8.tar.gz
HID: hidraw: fix samples miscompilation
On systems where userspace doesn't have new hidraw.h populated to /usr/include, the hidraw sample won't compile as it's missing the new ioctl defitions. Introduce temporary ugly workaround to define the ioctls "manually" in such cases, just to avoid miscompilation in allmodconfig cases. Reported-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Diffstat (limited to 'samples')
-rw-r--r--samples/hidraw/hid-example.c11
1 files changed, 11 insertions, 0 deletions
diff --git a/samples/hidraw/hid-example.c b/samples/hidraw/hid-example.c
index 40e3d620058..816e2dcda7c 100644
--- a/samples/hidraw/hid-example.c
+++ b/samples/hidraw/hid-example.c
@@ -14,6 +14,17 @@
#include <linux/input.h>
#include <linux/hidraw.h>
+/*
+ * 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
+#define HIDIOCSFEATURE(len) _IOC(_IOC_WRITE|_IOC_READ, 'H', 0x06, len)
+#define HIDIOCGFEATURE(len) _IOC(_IOC_WRITE|_IOC_READ, 'H', 0x07, len)
+#endif
+
/* Unix */
#include <sys/ioctl.h>
#include <sys/types.h>