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scsi_device(9s) [sunos man page]

scsi_device(9S) 					    Data Structures for Drivers 					   scsi_device(9S)

NAME
scsi_device - SCSI device structure SYNOPSIS
#include <sys/scsi/scsi.h> INTERFACE LEVEL
Solaris DDI specific (Solaris DDI). DESCRIPTION
The scsi_device structure stores common information about each SCSI logical unit, including pointers to areas that contain both generic and device specific information. There is one scsi_device structure for each logical unit attached to the system. The host adapter driver ini- tializes part of this structure prior to probe(9E) and destroys this structure after a probe failure or successful detach(9E). STRUCTURE MEMBERS
struct scsi_address sd_address; /* Routing information */ dev_info_t *sd_dev; /* Cross-reference */ /* to our dev_info_t */ kmutex_t sd_mutex; /* Mutex for this device */ struct scsi_inquiry *sd_inq; /* scsi_inquiry data structure */ struct scsi_extended_sense *sd_sense; /* Optional request */ /* sense buffer ptr */ caddr_t sd_private; /* Target drivers private data */ sd_address contains the routing information that the target driver normally copies into a scsi_pkt(9S) structure using the collection of makecom(9F) functions. The SCSA library routines use this information to determine which host adapter, SCSI bus, and target/logical unit number (lun) a command is intended for. This structure is initialized by the host adapter driver. sd_dev is a pointer to the corresponding dev_info structure. This pointer is initialized by the host adapter driver. sd_mutex is a mutual exclusion lock for this device. It is used to serialize access to a device. The host adapter driver initializes this mutex. See mutex(9F). sd_inq is initially NULL (zero). After executing scsi_probe(9F), this field contains the inquiry data associated with the particular device. sd_sense is initially NULL (zero). If the target driver wants to use this field for storing REQUEST SENSE data, it should allocate an scsi_extended_sense(9S) buffer and set this field to the address of this buffer. sd_private is reserved for the use of target drivers and should generally be used to point to target specific data structures. SEE ALSO
detach(9E), probe(9E), makecom(9F), mutex(9F), scsi_probe(9F), scsi_extended_sense(9S), scsi_pkt(9S) Writing Device Drivers SunOS 5.10 19 Feb 1993 scsi_device(9S)

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scsi_device(9S) 					    Data Structures for Drivers 					   scsi_device(9S)

NAME
scsi_device - SCSI device structure SYNOPSIS
#include <sys/scsi/scsi.h> INTERFACE LEVEL
Solaris DDI specific (Solaris DDI). DESCRIPTION
The scsi_device structure stores common information about each SCSI logical unit, including pointers to areas that contain both generic and device specific information. There is one scsi_device structure for each logical unit attached to the system. The host adapter driver ini- tializes part of this structure prior to probe(9E) and destroys this structure after a probe failure or successful detach(9E). STRUCTURE MEMBERS
struct scsi_address sd_address; /* Routing information */ dev_info_t *sd_dev; /* Cross-reference */ /* to our dev_info_t */ kmutex_t sd_mutex; /* Mutex for this device */ struct scsi_inquiry *sd_inq; /* scsi_inquiry data structure */ struct scsi_extended_sense *sd_sense; /* Optional request */ /* sense buffer ptr */ caddr_t sd_private; /* Target drivers private data */ sd_address contains the routing information that the target driver normally copies into a scsi_pkt(9S) structure using the collection of makecom(9F) functions. The SCSA library routines use this information to determine which host adapter, SCSI bus, and target/logical unit number (lun) a command is intended for. This structure is initialized by the host adapter driver. sd_dev is a pointer to the corresponding dev_info structure. This pointer is initialized by the host adapter driver. sd_mutex is a mutual exclusion lock for this device. It is used to serialize access to a device. The host adapter driver initializes this mutex. See mutex(9F). sd_inq is initially NULL (zero). After executing scsi_probe(9F), this field contains the inquiry data associated with the particular device. sd_sense is initially NULL (zero). If the target driver wants to use this field for storing REQUEST SENSE data, it should allocate an scsi_extended_sense(9S) buffer and set this field to the address of this buffer. sd_private is reserved for the use of target drivers and should generally be used to point to target specific data structures. SEE ALSO
detach(9E), probe(9E), makecom(9F), mutex(9F), scsi_probe(9F), scsi_extended_sense(9S), scsi_pkt(9S) Writing Device Drivers SunOS 5.10 19 Feb 1993 scsi_device(9S)

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