ata_dev_select
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Name

ata_dev_select — Select device 0/1 on ATA bus

Synopsis

void ata_dev_select (struct ata_port *  ap,
 unsigned int  device,
 unsigned int  wait,
 unsigned int  can_sleep);

Arguments

ap

ATA channel to manipulate

device

ATA device (numbered from zero) to select

wait

non-zero to wait for Status register BSY bit to clear

can_sleep

non-zero if context allows sleeping

Description

Use the method defined in the ATA specification to make either device 0, or device 1, active on the ATA channel.

This is a high-level version of ata_std_dev_select, which additionally provides the services of inserting the proper pauses and status polling, where needed.

LOCKING

caller.

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