summaryrefslogtreecommitdiff
path: root/include/uapi/linux/patchkey.h
diff options
context:
space:
mode:
authorIngo Molnar <mingo@kernel.org>2012-10-24 12:20:57 +0400
committerIngo Molnar <mingo@kernel.org>2012-10-24 12:20:57 +0400
commitef8c029fa793423439e67ef0416b220d3fa3321a (patch)
tree4199cefa6e1dcad1783040755246a14371f029af /include/uapi/linux/patchkey.h
parent6fcdb1ed2ef3548d5a9428d6ae60158ddd46a608 (diff)
parentc13d38e4a1fd5dd07135403c613c8091af444169 (diff)
downloadlinux-ef8c029fa793423439e67ef0416b220d3fa3321a.tar.xz
Merge branch 'perf/urgent' into perf/core
Pick up v3.7-rc2 and fixes before applying more patches. Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'include/uapi/linux/patchkey.h')
-rw-r--r--include/uapi/linux/patchkey.h37
1 files changed, 37 insertions, 0 deletions
diff --git a/include/uapi/linux/patchkey.h b/include/uapi/linux/patchkey.h
new file mode 100644
index 000000000000..1bda0e56bc5e
--- /dev/null
+++ b/include/uapi/linux/patchkey.h
@@ -0,0 +1,37 @@
+/*
+ * <linux/patchkey.h> -- definition of _PATCHKEY macro
+ *
+ * Copyright (C) 2005 Stuart Brady
+ *
+ * This exists because awe_voice.h defined its own _PATCHKEY and it wasn't
+ * clear whether removing this would break anything in userspace.
+ *
+ * Do not include this file directly. Please use <sys/soundcard.h> instead.
+ * For kernel code, use <linux/soundcard.h>
+ */
+
+#ifndef _LINUX_PATCHKEY_H_INDIRECT
+#error "patchkey.h included directly"
+#endif
+
+#ifndef _UAPI_LINUX_PATCHKEY_H
+#define _UAPI_LINUX_PATCHKEY_H
+
+/* Endian macros. */
+#ifndef __KERNEL__
+# include <endian.h>
+#endif
+
+#if !defined(__KERNEL__)
+#if defined(__BYTE_ORDER)
+# if __BYTE_ORDER == __BIG_ENDIAN
+# define _PATCHKEY(id) (0xfd00|id)
+# elif __BYTE_ORDER == __LITTLE_ENDIAN
+# define _PATCHKEY(id) ((id<<8)|0x00fd)
+# else
+# error "could not determine byte order"
+# endif
+#endif
+#endif
+
+#endif /* _UAPI_LINUX_PATCHKEY_H */