scsi_free(D3X)

NAME
     scsi_free - release communication channel to host adapter driver

SYNOPSIS
     #include <sys/types.h>
     #include <sys/scsi.h>

     void
     (*scsi_free)( vertex_hdl_t lun_vhdl,
                     void (*callback_function)(vertex_hdl_t, char *));

DESCRIPTION
     The host adapter scsi_free function is used to terminate a connection
     between a SCSI device driver and the host adapter driver.

     There is no kernel object called scsi_free; rather, there is a pointer to
     each host adapter's scsi_free function in the sci_free field of the
     scsi_ctlr_info structure, which is attached to the vertex corresponding
     to the host adapter.

     lun_vhdl is the device vertex, as given to scsi_alloc to open the
     channel.  The callback_function argument must be the same as that given
     to scsi_alloc.

NOTES
     scsi_alloc is stored as a function pointer in the scsi_ctlr_info_t
     structure, which is associated with the scsi host adapter vertex in the
     hwgraph.  The information structure in the scsi target vertex also has a
     pointer to the scsi_ctlr_info_t of the host adapter that the target is
     connected to.  Given a lun_vhdl (vertex handle of the device) the
     scsi_free function can be called as follows:

              scsi_lun_info_t *scsi_lun_info;
            ...
              scsi_lun_info = scsi_lun_info_get(lun_vhdl);
              SLI_FREE(scsi_lun_info)(lun_vhdl,callback_function);


SEE ALSO
     comments in /usr/include/sys/scsi.h, hwgraph.intro(D4X), scsi_alloc(D3X),
     scsi_command(D3X), scsi_free(D3X), scsi_info(D3X), scsi_ioctl(D3X),
     scsi_abort(D3X), SCSI chapter of the IRIX Device Driver Programmer's
     Guide