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[/] [hf-risc/] [trunk/] [tools/] [riscv-gnu-toolchain-master/] [linux-headers/] [include/] [linux/] [patchkey.h] - Blame information for rev 13

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1 13 serginhofr
/*
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 * <linux/patchkey.h> -- definition of _PATCHKEY macro
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 *
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 * Copyright (C) 2005 Stuart Brady
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 *
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 * This exists because awe_voice.h defined its own _PATCHKEY and it wasn't
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 * clear whether removing this would break anything in userspace.
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 *
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 * Do not include this file directly.  Please use <sys/soundcard.h> instead.
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 * For kernel code, use <linux/soundcard.h>
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 */
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#ifndef _LINUX_PATCHKEY_H_INDIRECT
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#error "patchkey.h included directly"
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#endif
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#ifndef _LINUX_PATCHKEY_H
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#define _LINUX_PATCHKEY_H
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/* Endian macros. */
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#  include <endian.h>
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#if defined(__BYTE_ORDER)
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#  if __BYTE_ORDER == __BIG_ENDIAN
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#    define _PATCHKEY(id) (0xfd00|id)
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#  elif __BYTE_ORDER == __LITTLE_ENDIAN
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#    define _PATCHKEY(id) ((id<<8)|0x00fd)
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#  else
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#    error "could not determine byte order"
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#  endif
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#endif
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#endif /* _LINUX_PATCHKEY_H */

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