LibUSBTransferMBS.Cancel as Integer

Returns error code.

LibUSBTransferMBS.Constructor(ISOPackets as Integer = 0)

LibUSBTransferMBS.ControlTransferGetData as Ptr

Convenience function since there is a 8 byte control block in front of the data.
Returns nil if not possible.

LibUSBTransferMBS.ControlTransferGetSetup as Ptr

Convenience function since there is a 8 byte control block in front of the data.
Returns nil if not possible.

LibUSBTransferMBS.FillBulkStreamTransfer(Device as LibUSBDeviceMBS, EndPoint as Integer, StreamId as Integer, Buffer as MemoryBlock, Timeout as Integer)

Device: the device that will handle the transfer
endpoint: address of the endpoint where this transfer will be sent
StreamId: id for this transfer
buffer: data buffer
timeout: timeout for the transfer in milliseconds

LibUSBTransferMBS.FillBulkTransfer(Device as LibUSBDeviceMBS, EndPoint as Integer, Buffer as MemoryBlock, Timeout as Integer)

Device: the device that will handle the transfer
endpoint: address of the endpoint where this transfer will be sent
buffer: data buffer
timeout: timeout for the transfer in milliseconds

LibUSBTransferMBS.FillControlSetup(Buffer as MemoryBlock, RequestType as Integer, Request as Integer, Value as Integer, Index as Integer, Length as Integer)

The Index, Value and Length values should be given in host-endian byte order.

LibUSBTransferMBS.FillControlTransfer(Device as LibUSBDeviceMBS, Buffer as MemoryBlock, Timeout as Integer)

If you pass a transfer buffer to this function, the first 8 bytes will be interpreted as a control setup packet.

Therefore the recommended approach is:

• Allocate a suitably sized MemoryBlock (including space for control setup)
• Call FillControlSetup()
• If this is a host-to-device transfer with a data stage, put the data in place after the setup packet
• Call this function
• Call Submit()

LibUSBTransferMBS.FillInterruptTransfer(Device as LibUSBDeviceMBS, EndPoint as Integer, Buffer as MemoryBlock, Timeout as Integer)

Device: the device that will handle the transfer
endpoint: address of the endpoint where this transfer will be sent
buffer: data buffer
timeout: timeout for the transfer in milliseconds

LibUSBTransferMBS.FillISOTransfer(Device as LibUSBDeviceMBS, EndPoint as Integer, Buffer as MemoryBlock, NumISOPackets as Integer, Timeout as Integer)

Device: the device that will handle the transfer
endpoint: address of the endpoint where this transfer will be sent
buffer: data buffer
NumISOPackets: the number of isochronous packets
timeout: timeout for the transfer in milliseconds

LibUSBTransferMBS.ISOPacketBuffer(Index as Integer) as Ptr

This points within the buffer MemoryBlock.

LibUSBTransferMBS.ISOPacketDescriptor(index as Integer) as LibUSBISOPacketDescriptorMBS

Queries packet with given index. Zero based.

LibUSBTransferMBS.SetISOPacketLengths(Length as UInt32)

// 3 buffers
Dim t As New LibUSBTransferMBS(3)
t.buffer = New MemoryBlock(100)


// set all length to 4
t.SetISOPacketLengths 4

Dim p0 As LibUSBISOPacketDescriptorMBS = t.ISOPacketDescriptor(0)
Dim p1 As LibUSBISOPacketDescriptorMBS = t.ISOPacketDescriptor(1)
Dim p2 As LibUSBISOPacketDescriptorMBS = t.ISOPacketDescriptor(2)

Break // check

LibUSBTransferMBS.Submit as Integer

Returns error code.

Later Completed event is called.