TapeClassAllocateSrbBuffer function (minitape.h)

The TapeClassAllocateSrbBuffer routine allocates an Srb->DataBuffer.

Syntax

SCSIPORT_API BOOLEAN TapeClassAllocateSrbBuffer(
  [in, out] PSCSI_REQUEST_BLOCK Srb,
  [in]      ULONG               SrbBufferSize
);

Parameters

[in, out] Srb

Pointer to the SRB.

[in] SrbBufferSize

Specifies the size, in bytes, of the DataBuffer to be allocated.

Return value

TapeClassAllocateSrbBuffer returns TRUE if the DataBuffer was allocated successfully, and FALSE if the buffer was not allocated.

Remarks

TapeClassAllocateSrbBuffer allocates an Srb->DataBuffer from nonpaged memory and initializes the members to zero. If the buffer already exists from an earlier call, it is freed and a new buffer allocated. A tape miniclass driver calls this routine to allocate a DataBuffer in a portable way.

Requirements