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| author | Vladimir Azarov <avm@intermediate-node.net> | 2024-10-01 15:47:05 +0200 |
|---|---|---|
| committer | Vladimir Azarov <avm@intermediate-node.net> | 2024-10-01 15:47:05 +0200 |
| commit | 4abab5ad6c8465a7528ccdd5f49367da05f78bbd (patch) | |
| tree | ebf009bf1376a5a223a915bc27cbbd791a1316bc /include/sys/sysmacros.h | |
Initial version
Diffstat (limited to 'include/sys/sysmacros.h')
| -rw-r--r-- | include/sys/sysmacros.h | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/include/sys/sysmacros.h b/include/sys/sysmacros.h new file mode 100644 index 0000000..07a3ef1 --- /dev/null +++ b/include/sys/sysmacros.h @@ -0,0 +1,15 @@ +#ifndef _SYS_SYSMACROS_H +#define _SYS_SYSMACROS_H + +#define major(x) \ + ((unsigned)( (((x)>>31>>1) & 0xfffff000) | (((x)>>8) & 0x00000fff) )) +#define minor(x) \ + ((unsigned)( (((x)>>12) & 0xffffff00) | ((x) & 0x000000ff) )) + +#define makedev(x,y) ( \ + (((x)&0xfffff000ULL) << 32) | \ + (((x)&0x00000fffULL) << 8) | \ + (((y)&0xffffff00ULL) << 12) | \ + (((y)&0x000000ffULL)) ) + +#endif |