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ATA_XFER_MODE2SHIFT(9) libata Library ATA_XFER_MODE2SHIFT(9)

NAME

ata_xfer_mode2shift - Find matching xfer_shift for XFER_*

SYNOPSIS

int ata_xfer_mode2shift(unsigned long xfer_mode);

ARGUMENTS

xfer_mode
XFER_* of interest

DESCRIPTION

Return matching xfer_shift for xfer_mode.

LOCKING

None.

RETURNS

Matching xfer_shift, -1 if no match found.

AUTHOR

Jeff Garzik
Author.

COPYRIGHT

May 2018 Kernel Hackers Manual 3.16