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NS:spb.SPB_TRANSFER_BUFFER_LIST_ENTRY |
SPB_TRANSFER_BUFFER_LIST_ENTRY (spb.h) |
The SPB_TRANSFER_BUFFER_LIST_ENTRY structure describes either a simple transfer buffer, or an element in an array of one or more transfer buffers. |
spb\spb_transfer_buffer_list_entry.htm |
SPB |
09/13/2021 |
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*PSPB_TRANSFER_BUFFER_LIST_ENTRY, PSPB_TRANSFER_BUFFER_LIST_ENTRY, PSPB_TRANSFER_BUFFER_LIST_ENTRY structure pointer [Buses], SPB.spb_transfer_buffer_list_entry, SPB_TRANSFER_BUFFER_LIST_ENTRY, SPB_TRANSFER_BUFFER_LIST_ENTRY structure [Buses], spb/PSPB_TRANSFER_BUFFER_LIST_ENTRY, spb/SPB_TRANSFER_BUFFER_LIST_ENTRY |
spb.h |
Windows |
Supported starting with Windows 8. |
Windows |
SPB_TRANSFER_BUFFER_LIST_ENTRY, *PSPB_TRANSFER_BUFFER_LIST_ENTRY |
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The SPB_TRANSFER_BUFFER_LIST_ENTRY structure describes either a simple transfer buffer, or an element in an array of one or more transfer buffers.
The virtual address of the transfer buffer. For a transfer that is requested by a client of the SPB controller driver that runs in user mode, this buffer must reside entirely in user-mode memory.
The size, in bytes, of the transfer buffer that Buffer points to.
To request an I/O transfer sequence for a target device on the bus, a client (peripheral driver) of the SPB controller driver sends an IOCTL_SPB_EXECUTE_SEQUENCE request that describes the sequence. The transfers in the sequence are described by an SPB_TRANSFER_LIST structure that is followed by an array of one or more SPB_TRANSFER_LIST_ENTRY structures. Each element in this array describes an individual transfer in the sequence, and each element contains an SPB_TRANSFER_BUFFER structure that describes the buffer to use for the transfer.
If the buffer format is SpbTransferBufferFormatSimple, an SPB_TRANSFER_BUFFER structure contains a single SPB_TRANSFER_BUFFER_LIST_ENTRY structure that describes a simple buffer that is specified by an address and a length. If the buffer format is SpbTransferBufferFormatList, the buffer is a scatter-gather list, and the SPB_TRANSFER_BUFFER structure contains a pointer to an SPB_TRANSFER_BUFFER_LIST_ENTRY array that describes the list.