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.

RETURNS Matching xfer_mode, 0xff if no match found.

AUTHOR Jeff Garzik Author.

COPYRIGHT Kernel Hackers Manual 2.6. September 2014 ATA_TIMING_CYCLE2MOD(9)