IOCINFO (Device Information) SSA Adapter Device Driver ioctl Operation

Purpose

Returns a structure 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

Related Information

The SSA Adapter Device Driver, ssadisk SSA disk device driver, SSA Subsystem Overview.