SATA_SCR_READ(9)                          libata Library                         SATA_SCR_READ(9)



NAME
       sata_scr_read - read SCR register of the specified port

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

ARGUMENTS
       link
           ATA link to read SCR for

       reg
           SCR to read

       val
           Place to store read value

DESCRIPTION
       Read SCR register reg of link into *val. This function is guaranteed to succeed if link is
       ap->link, the cable type of the port is SATA and the port implements ->scr_read.

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

RETURN
       0 on success, negative errno on failure.

AUTHOR
       Jeff Garzik
           Author.

COPYRIGHT
Kernel Hackers Manual 4.8.                 January 2017                          SATA_SCR_READ(9)