suse man page for sata_scr_write_flush

SATA_SCR_WRITE_FLUSH(9) 					  libata Library					   SATA_SCR_WRITE_FLUSH(9)

NAME
       sata_scr_write_flush - write SCR register of the specified port and flush

SYNOPSIS
       int sata_scr_write_flush(struct ata_link * link, int reg, u32 val);

ARGUMENTS
       link
	   ATA link to write SCR for

       reg
	   SCR to write

       val
	   value to write

DESCRIPTION
       This function is identical to sata_scr_write except that this function performs flush after writing to the register.

LOCKING
       None if link is ap->link. Kernel thread context otherwise.

RETURNS
       0 on success, negative errno on failure.

AUTHOR
       Jeff Garzik
	   Author.

COPYRIGHT
Kernel Hackers Manual 2.6.					     July 2010						   SATA_SCR_WRITE_FLUSH(9)