MbbRequestGetBuffer function

Description

The client driver calls the MbbRequestGetBuffer method to get the memory location where an MBIM control message is stored or should be stored.

Parameters

Request

A handle to the framework object which represents a request from MBBCx framework, either to send a MBIM control command message to the device or to receive an MBIM control response message from the device.

BufferSize

A pointer to the location that receives the size, in bytes, of the MBIM control message fragment.

Return value

Returns a pointer to the memory location where the MBIM message is stored:

• When this method is called on a request object passed from the EvtMbbDeviceSendMbimFragment callback function, it points to the MBIM control command fragment sent from the MBBCx framework to the device. This memory location is read-only.
• When this method is called on a request object passed from the EvtMbbDeviceReceiveMbimFragment callback function, it points to an empty buffer to which the client driver should write the MBIM control response. This buffer is pre-allocated by the MBBCx framework and the BufferSize parameter specifies its size.

Remarks

For more information, see Handling MBIM control messages.

See also