OpenWrt – Blame information for rev 1
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1 | office | 1 | /* Definitions of macros to access `dev_t' values. |
2 | Copyright (C) 1996, 1997, 1999, 2003, 2004 Free Software Foundation, Inc. |
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3 | This file is part of the GNU C Library. |
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4 | |||
5 | The GNU C Library is free software; you can redistribute it and/or |
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6 | modify it under the terms of the GNU Lesser General Public |
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7 | License as published by the Free Software Foundation; either |
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8 | version 2.1 of the License, or (at your option) any later version. |
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9 | |||
10 | The GNU C Library is distributed in the hope that it will be useful, |
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11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
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12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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13 | Lesser General Public License for more details. |
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14 | |||
15 | You should have received a copy of the GNU Lesser General Public |
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16 | License along with the GNU C Library; if not, write to the Free |
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17 | Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA |
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18 | 02111-1307 USA. */ |
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19 | |||
20 | #ifndef __SYS_SYSMACROS_H |
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21 | #define __SYS_SYSMACROS_H 1 |
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22 | |||
23 | static inline unsigned int |
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24 | __gnu_dev_major(unsigned long long int __dev) |
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25 | { |
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26 | return ((__dev >> 8) & 0xfff) | ((unsigned int) (__dev >> 32) & ~0xfff); |
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27 | } |
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28 | |||
29 | static inline unsigned int |
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30 | __gnu_dev_minor(unsigned long long int __dev) |
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31 | { |
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32 | return (__dev & 0xff) | ((unsigned int) (__dev >> 12) & ~0xff); |
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33 | } |
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34 | |||
35 | static inline unsigned long long int |
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36 | __gnu_dev_makedev(unsigned int __major, unsigned int __minor) |
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37 | { |
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38 | return ((__minor & 0xff) | ((__major & 0xfff) << 8) |
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39 | | (((unsigned long long int) (__minor & ~0xff)) << 12) |
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40 | | (((unsigned long long int) (__major & ~0xfff)) << 32)); |
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41 | } |
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42 | |||
43 | /* Access the functions with their traditional names. */ |
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44 | #ifndef major |
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45 | # define major(dev) __gnu_dev_major (dev) |
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46 | #endif |
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47 | |||
48 | #ifndef minor |
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49 | # define minor(dev) __gnu_dev_minor (dev) |
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50 | #endif |
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51 | |||
52 | #ifndef makedev |
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53 | # define makedev(maj, min) __gnu_dev_makedev (maj, min) |
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54 | #endif |
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55 | |||
56 | #endif /* sys/sysmacros.h */ |