ata_scsi_queuecmd — Issue SCSI cdb to libata-managed device


int ata_scsi_queuecmd (struct Scsi_Host * shost,
 struct scsi_cmnd * cmd);


struct Scsi_Host * shost

SCSI host of command to be sent

struct scsi_cmnd * cmd

SCSI command to be sent


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: ATA host lock


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