ata_dev_read_id
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Name

ata_dev_read_id — Read ID data from the specified device

Synopsis

int ata_dev_read_id (struct ata_port *  ap,
 struct ata_device *  dev,
 unsigned int *  p_class,
 int  post_reset,
 u16 **  p_id);

Arguments

ap

port on which target device resides

dev

target device

p_class

pointer to class of the target device (may be changed)

post_reset

is this read ID post-reset?

p_id

read IDENTIFY page (newly allocated)

Description

Read ID data from the specified device. ATA_CMD_ID_ATA is performed on ATA devices and ATA_CMD_ID_ATAPI on ATAPI devices. This function also issues ATA_CMD_INIT_DEV_PARAMS for pre-ATA4 drives.

LOCKING

Kernel thread context (may sleep)

RETURNS

0 on success, -errno otherwise.

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