HP 800 HP DLPI Programmer's Guide - Page 94

DL_PHYS_ADDR_REQ, DL_FACT_PHYS_ADDR primitive is sent down the APA PPA.

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DLPI Primitives Local Management Primitives DL_PHYS_ADDR_REQ Requests the DLS provider to return the physical address associated with the stream depending upon the value of the address type selected in the request. Format The message consists one M_PROTO message block containing the structure shown below. typedef struct { ulong dl_primitive; ulong dl_addr_type; } dl_phys_addr_req_t; Parameters dl_primitive DL_PHYS_ADDR_REQ dl_addr_type type of address requested - factory physical address or current physical address DL_FACT_PHYS_ADDR NOTE APA PPA does not support the DL_FACT_PHYS_ADDR primitive. The EOPNOTSUPP Unix error is returned when the DL_FACT_PHYS_ADDR primitive is sent down the APA PPA. DL_CURR_PHYS_ADDR State The message is valid in any attached state in which a local acknowledgement is not pending. For a style 2 provider, this would be after a PPA is attached using the DL_ATTACH_REQ. For a style 1 provider, the PPA is implicitly attached after the stream is opened. New State The resulting state is unchanged. Response 94 Chapter 2

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DLPI Primitives
Local Management Primitives
Chapter 2
94
DL_PHYS_ADDR_REQ
Requests the DLS provider to return the physical address associated
with the stream depending upon the value of the address type selected in
the request.
Format
The message consists one M_PROTO message block containing the
structure shown below.
typedef struct {
ulong
dl_primitive;
ulong
dl_addr_type;
} dl_phys_addr_req_t;
Parameters
dl_primitive
DL_PHYS_ADDR_REQ
dl_addr_type
type of address requested - factory physical address or current
physical address
DL_FACT_PHYS_ADDR
NOTE
APA PPA does not support the DL_FACT_PHYS_ADDR primitive.
The EOPNOTSUPP Unix error is returned when the
DL_FACT_PHYS_ADDR primitive is sent down the APA PPA.
DL_CURR_PHYS_ADDR
State
The message is valid in any attached state in which a local
acknowledgement is not pending. For a style 2 provider, this would be
after a PPA is attached using the DL_ATTACH_REQ. For a style 1
provider, the PPA is implicitly attached after the stream is opened.
New State
The resulting state is unchanged.
Response