ata_timing_cycle2mode - find xfer mode for the specified cycle duration
u8 ata_timing_cycle2mode(unsigned int xfer_shift, int cycle);
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.
Matching xfer_mode, 0xff if no match found.
|January 2017||Kernel Hackers Manual 4.8.|