Purpose, Description, Files – Compex Systems Advanced SerialRAID Adapters SA33-3285-02 User Manual

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IOCINFO (Device Information) SSA Adapter Device Driver ioctl Operation

Purpose

To return a structure that is defined in the /usr/include/sys/devinfo.h file.

Description

The IOCINFO ioctl operation returns a structure that is defined in the
/usr/include/sys/devinfo.h header file. The caller supplies the address to an area that
is of the type

struct devinfo

. This area is in the arg parameter to the IOCINFO

operation. The

device-type

field for this component is DD_BUS; the

subtype

is

DS_SDA.

The IOCINFO operation is defined for all device drivers that use the ioctl subroutine, as
follows:

The operation returns a devinfo structure. The caller supplies the address of this
structure in the argument to the IOCINFO operation. The device type in this structure is
DD_BUS, and the subtype is DS_SDA. The

flags

field is set to DF_FIXED.

Files

/dev/ssa0, /dev/ssa1,..., /dev/ssan

Chapter 13. Using the Programming Interface

261

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