libATA Developer's Guide
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ata_qc_issue

Name

ata_qc_issue -- issue taskfile to device

Synopsis

int ata_qc_issue (struct ata_queued_cmd * qc);

Arguments

qc: command to issue to device

Description

Prepare an ATA command to submission to device. This includes mapping the data into a DMA-able area, filling in the S/G table, and finally writing the taskfile to hardware, starting the command.

LOCKING

spin_lock_irqsave(host_set lock)

RETURNS

Zero on success, negative on error.

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