| 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¶
| May 2024 | Kernel Hackers Manual 2.6. |