ata_scsi_queuecmd

Langue: en

Autres versions - même langue

Version: June 2009 (debian - 07/07/09)

Section: 9 (Appels noyau Linux)

Sommaire

NAME

ata_scsi_queuecmd - Issue SCSI cdb to libata-managed device

SYNOPSIS

int ata_scsi_queuecmd(struct scsi_cmnd * cmd, void (*done) (struct scsi_cmnd *));

ARGUMENTS

cmd

SCSI command to be sent

done

Completion function, called when command is complete

DESCRIPTION

In some cases, this function translates SCSI commands into ATA taskfiles, and queues the taskfiles to be sent to hardware. In other cases, this function simulates a SCSI device by evaluating and responding to certain SCSI commands. This creates the overall effect of ATA and ATAPI devices appearing as SCSI devices.

LOCKING

Releases scsi-layer-held lock, and obtains host lock.

RETURNS

Return value from __ata_scsi_queuecmd if cmd can be queued, 0 otherwise.

AUTHOR

Jeff Garzik

Author.