ATA_TIMING_CYCLE2MOD(9)                   libata Library                  ATA_TIMING_CYCLE2MOD(9)



NAME
       ata_timing_cycle2mode - find xfer mode for the specified cycle duration

SYNOPSIS
       u8 ata_timing_cycle2mode(unsigned int xfer_shift, int cycle);

ARGUMENTS
       xfer_shift
           ATA_SHIFT_* value for transfer type to examine.

       cycle
           cycle duration in ns

DESCRIPTION
       Return matching xfer mode for cycle. The returned mode is of the transfer type specified
       by xfer_shift. If cycle is too slow for xfer_shift, 0xff is returned. If cycle is faster
       than the fastest known mode, the fasted mode is returned.

       LOCKING: None.

RETURN
       Matching xfer_mode, 0xff if no match found.

AUTHOR
       Jeff Garzik
           Author.

COPYRIGHT
Kernel Hackers Manual 4.8.                 January 2017                   ATA_TIMING_CYCLE2MOD(9)