IOCINFO (Device Information) SSA Disk Device Driver ioctl Operation

Kernel and Subsystems Technical Reference, Volume 2

IOCINFO (Device Information) SSA Disk Device Driver ioctl Operation

Purpose

Returns a structure defined in the /usr/include/sys/devinfo.h file.

Description

The IOCINFO operation returns a structure defined in the /usr/include/sys/devinfo.h header file. The caller supplies the address to an area of type struct devinfo in the arg parameter to the IOCINFO operation. The device-type field for this component is DD_SCDISK; the subtype is DS_PV. The information returned includes the block size in bytes and the total number of blocks on the disk drive.

Files

/dev/pdisk0, /dev/pdisk1, ..., /dev/pdiskn	Provide an interface to allow SSA device drivers to access SSA physical disks drives.
/dev/pdisk0, /dev/pdisk1,..., /dev/pdiskn	Provide an interface to allow SSA device drivers to access SSA logical disks drives.

Related Information

The SSA Adapter Device Driver, ssadisk SSA Disk Device Driver, SSA Subsystem Overview.