sata_scr_read (9)

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

link

ATA link to read SCR for

reg

SCR to read

val

Place to store read value

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.

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

0 on success, negative errno on failure.

Jeff Garzik

Author.