NAME

scsi_poll −  run a polled SCSI command on behalf of a target driver

SYNOPSIS

#include <sys/scsi/scsi.h>

int scsi_poll(struct scsi_pkt ∗pkt);

ARGUMENTS

pkt Pointer to the scsi_pkt(9S) structure. 

INTERFACE LEVEL

Solaris DDI specific (Solaris DDI). 

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 zero it is defaulted to SCSI_POLL_TIMEOUT to prevent an indefinite hang of the system. 

RETURN VALUES

scsi_poll() returns:

0 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)

Writing Device Drivers

WARNING

scsi_poll() might loop indefinitely waiting for a SCSI command to complete; hence it is not normally recommended to call it from interrupt context.

SunOS 5.4  —  Last change: 21 Dec 1991