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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.

RETURNS

0 on success, negative errno on failure.

AUTHOR

Jeff Garzik
Author.

COPYRIGHT

March 2016 Kernel Hackers Manual 3.2.