MPE/iX Intrinsics Reference Manual (32650-90875)

Chapter 7 345

Command Deﬁnitions (HP32208-HPLOACNMPROC)

HPDEVCREATE

• If no errors or warnings occur, status returns 32-bits of zero.

• If errors or warnings occur, status is interpreted as two 16-bit ﬁelds:

Bits (0:16) Comprise status.info. A negative value indicates an

error condition, and a positive value indicates a warning

condition.

Bits (16:16) Comprise status.subsys. The value represents the

subsystem that sets the status information. For

HPDEVCREATE intrinsic, the subsystem is File System

(143).

If the

status

parameter is not speciﬁed and an error

occurs during the processing of HPDEVCREATE call, the

calling process aborts.

keyword# 32-bit integer by value (optional)

Speciﬁes a keyword value used in combination with the corresponding

keyvalue parameter. Speciﬁes the type of device ﬁle options used to create

a device ﬁle. Up to 32 keyword/keyvalue pairs may be speciﬁed in a call

to HPDEVCREATE. The following table lists the deﬁned keyword/keyvalue

pairs. Specifying a keyword other than those below will result in a error.

• If duplicate keywords are speciﬁed in a call to HPDEVCREATE, the last

keyvalue is used, and a warning is returned to the caller.

• If no keyword/keyvalue pairs are speciﬁed, an error is returned.

keyvalue# Type varies by reference (optional)

The keyvalue parameter is matched with its corresponding keyword to

pass information to HPDEVCREATE. If a keyword is speciﬁed and the

keyvalue is not present, an error will occur.

Table 7-12. HPDEVCREATE Keywords/keyvalues

Key

word

Type Description

0 None End of option list.

There is no corresponding keyvalue. Terminates the keyword/keyvalue list and

is equivalent to not passing a keyword/keyvalue pair.