ATA_STD_PRERESET(9) libata Library ATA_STD_PRERESET(9)
NAME ata_std_prereset - prepare for reset
SYNOPSIS int ata_std_prereset(struct ata_link * link, unsigned long deadline);
ARGUMENTS link ATA link to be reset
deadline deadline jiffies for the operation
DESCRIPTION link is about to be reset. Initialize it. Failure from prereset makes libata abort whole reset sequence and give up that port, so prereset should be best-effort. It does its best to prepare for reset sequence but if things go wrong, it should just whine, not fail.
LOCKING Kernel thread context (may sleep)
RETURNS 0 on success, -errno otherwise.
AUTHOR Jeff Garzik Author.
COPYRIGHT Kernel Hackers Manual 2.6. September 2014 ATA_STD_PRERESET(9)