SATA_SCR_READ

Section: libata Library (9)
Updated: February 2011
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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.

RETURNS

0 on success, negative errno on failure.

AUTHOR

Jeff Garzik

: Author.