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Name

Synopsis

#include <sys/scsi/scsi.h>

int scsi_poll(struct scsi_pkt *pkt);

Interface Level

Arguments

pkt

Pointer to the scsi_pkt(9S) structure.

Description

scsi_poll() requests the host adapter driver to run a polled command. Unlike scsi_transport(9F) which runs commands asynchronously, scsi_poll() runs commands to completion before returning. If the pkt_time member of pkt is 0, the value of pkt_time is defaulted to SCSI_POLL_TIMEOUT to prevent an indefinite hang of the system.

Return Values

1. command completed successfully.
   -1
   command failed.

   Context

   scsi_poll() can be called from user or interrupt level.

   See Also

   makecom(9F) , scsi_transport(9F) , scsi_pkt(9S)

   Warnings

   Since scsi_poll() runs commands to completion before returning, it may require more time than is desirable when called from interrupt context. Therefore, calling scsi_poll from interrupt context is not recommended.

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   Table of Contents

   • Name
   • Synopsis
   • Interface Level
   • Arguments
   • Description
   • Return Values
   • Context
   • See Also
   • Warnings