Query: scsi_poll
OS: opensolaris
Section: 9f
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scsi_poll(9F) Kernel Functions for Drivers scsi_poll(9F)NAMEscsi_poll - run a polled SCSI command on behalf of a target driverSYNOPSIS#include <sys/scsi/scsi.h> int scsi_poll(struct scsi_pkt *pkt);INTERFACE LEVELSolaris DDI specific (Solaris DDI).PARAMETERSpkt Pointer to the scsi_pkt(9S) structure.DESCRIPTIONThe scsi_poll() function requests the host adapter driver to run a polled command. Unlike scsi_transport(9F) which runs commands asyn- chronously, 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 VALUESThe scsi_poll() function returns: 0 command completed successfully. -1 command failed.CONTEXTThe scsi_poll() function can be called from user, interrupt, or kernel context. This function should not be called when the caller is exe- cuting timeout(9F) in the context of a thread.SEE ALSOmakecom(9F), scsi_transport(9F), scsi_pkt(9S) Writing Device DriversWARNINGSSince scsi_poll() runs commands to completion before returning, it may require more time than is desirable when called from interrupt con- text. Therefore, calling scsi_poll from interrupt context is not recommended. SunOS 5.11 16 Jan 2006 scsi_poll(9F)