sata_scr_write (9)

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

link

ATA link to write SCR for

reg

SCR to write

val

value to write

Write val to SCR register reg of link. 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.