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Diffstat (limited to 'arch/x86_64/bits/sysmacros.h')
-rw-r--r--arch/x86_64/bits/sysmacros.h7
1 files changed, 7 insertions, 0 deletions
diff --git a/arch/x86_64/bits/sysmacros.h b/arch/x86_64/bits/sysmacros.h
new file mode 100644
index 00000000..da29022d
--- /dev/null
+++ b/arch/x86_64/bits/sysmacros.h
@@ -0,0 +1,7 @@
+#define major(x) (((x) >> 8) & 0xff)
+#define minor(x) ((x) & 0xff)
+#define makedev(x,y) (((x)<<8)|((y)&0xff))
+
+//#define makedev(x,y) \
+//	((x)*0x100000001ULL)&(0xfffffffffff0)
+//	((y)*0x1001 & 0xffff0ff)