1ATA_XFER_MODE2SHIFT(9)          libata Library          ATA_XFER_MODE2SHIFT(9)
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NAME

6       ata_xfer_mode2shift - Find matching xfer_shift for XFER_*
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SYNOPSIS

9       int ata_xfer_mode2shift(unsigned long xfer_mode);
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ARGUMENTS

12       xfer_mode
13           XFER_* of interest
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DESCRIPTION

16       Return matching xfer_shift for xfer_mode.
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LOCKING

19       None.
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RETURNS

22       Matching xfer_shift, -1 if no match found.
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AUTHOR

25       Jeff Garzik
26           Author.
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29Kernel Hackers Manual 2.6.       November 2011          ATA_XFER_MODE2SHIFT(9)
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