The IOCC_DEVICE_CONTROL CommandCode consists of all the CommmandModifiers responsible for device control.
The following table describes the IOCC_DEVICE_CONTROL CommandModifiers:
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Remarks
Support:
Format of IORB
IORB_DEVICE_CONTROL Description
This section defines the IORB_DEVICE_CONTROL control block. (See the following table.)
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On entry to the driver:
iorbh
See IORB General Format.
Flags
contains flags defined only for IOCM_SUSPEND requests. For all other requests,
this field equals 0.
The following table describes the IOCM_SUSPEND flags.
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Reserved
contains a 0.
On exit, the driver sets the Status and ErrorCode fields of the IORBH to reflect the results of the IOCC_DEVICE_CONTROL request.
Return Codes
Following is a list of the IOCC_DEVICE_CONTROL error codes:
IOERR_CMD_NOT_SUPPORTED
IOERR_CMD_SYNTAX
IOERR_CMD_SW_RESOURCE
IOERR_UNIT_NOT_ALLOCATED
IOERR_UNIT_NOT_READY
IOERR_UNIT_PWR_OFF
For a detailed description of all the return codes, see Error Handling.