Int 4B  - Common Access Method Scsi Interface (draft Revision 1.9)         [d]

   ES:DI -> CAM Control Block (see INT 4F/AX=8100h)

Notes: the CAM committee moved the interface to INT 4F after revision 1.9
     to avoid conflicting with the IBM SCSI interface and the Virtual
     DMA specification
   the installation check for the driver is the string "SCSI_CAM" eight
     bytes past the INT 4Bh handler
   it is not known whether any drivers actually implemented this
     interface on INT 4B instead of INT 4F

See Also: INT 4F/AX=8100h
Index: installation check;Common Access Method SCSI interface