## Physical Device Driver Reference

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### DEVICESTRUCT Field - pAdjunctList

pAdjunctList (PADJUNCT) Pointer to a linked list of adjunct data structures . The following adjunct structures should be included in the list:

ADJ_ADD_UNIT ADD Drivers

This adjunct contains the ADD handle and ADD unit number the ADD driver will assign to the device.

ADJ_DEVICE_NUMBER Non-SCSI Devices

This adjunct contains the zero-based device number for non-SCSI devices. For example, the nth CD-ROM is supported by an adapter.

ADJ_SCSI_TARGET_LUN SCSI Devices

This adjunct contains the SCSI target ID and Logical Device Number (LUN) assigned to the device.