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IOCTL_STORAGE_GET_MEDIA_TYPES control code

Returns information about the geometry of floppy drives.

Input Parameters

Parameters.DeviceIoControl.OutputBufferLength in the I/O stack location of the IRP indicates the size, in bytes, of the buffer, which must be at least (NumberOfSupportedMediaTypes * sizeof(DISK_GEOMETRY)).

Output Parameters

The driver returns an array of DISK_GEOMETRY records for the types of media it supports in the buffer at Irp->AssociatedIrp.SystemBuffer.

I/O Status Block

The Information field is set to the size, in bytes, of the returned data. The Status field can be set to STATUS_SUCCESS, or possibly to STATUS_INVALID_DEVICE_REQUEST, STATUS_BUFFER_TOO_SMALL, or STATUS_BUFFER_OVERFLOW.

Requirements

Header

Ntddstor.h (include Ntddstor.h)

See also

DISK_GEOMETRY

 

 

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