File: dev_t.h

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multipath-tools 0.5.0-6
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#define MAJOR(dev)      ((dev & 0xfff00) >> 8)
#define MINOR(dev)      ((dev & 0xff) | ((dev >> 12) & 0xfff00))
#define MKDEV(ma,mi)    ((mi & 0xff) | (ma << 8) | ((mi & ~0xff) << 12))