IOCTL_STORAGE_GET_MEDIA_TYPES IOCTL (ntddstor.h)
Returns information about the geometry of floppy drives.
Major code
Input buffer
None.
Input buffer length
None.
Output buffer
The driver returns an array of DISK_GEOMETRY records for the types of media it supports in the buffer at Irp->AssociatedIrp.SystemBuffer.
Output buffer length
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)).
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
Requirement | Value |
---|---|
Header | ntddstor.h (include Ntddstor.h) |
See also
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