BTH_HCI_IOCTL_GET_SCO_PARAMETERS (Compact 2013)

3/26/2014

This I/O control message retrieves information about a SCO connection. Send this message with DeviceIoControl.

Syntax

BOOL DeviceIoControl(
    HANDLE hDevice,           // handle to device
    DWORD dwIoControlCode,    // use BTH_HCI_IOCTL_GET_SCO_PARAMETERS
    LPVOID lpInBuffer,        // pointer to input buffer
    DWORD nInBufferSize,      // input buffer size
    LPVOID lpOutBuffer,       // pointer to output buffer
    DWORD nOutBufferSize,     // output buffer size
    LPDWORD lpBytesReturned,  // number of bytes returned
    OVERLAPPED lpOverlapped   // pointer to OVERLAPPED structure
);

Parameters

• hDevice
  The handle to the device.

• dwIoControlCode
  [in] Control code for the operation. Use BTH_HCI_IOCTL_GET_SCO_PARAMETERS for this operation.

• lpInBuffer
  [in] Not used; set to NULL.

• nInBufferSize
  [in] Not used; set to zero.

• lpOutBuffer
  [out] Points to the GetScoParameters structure that will receive the parameters; see definition below.

• nOutBufferSize
  [out] Equals size of GetScoParameters.

• lpBytesReturned

• lpOverlapped
  Ignored.

Remarks

You must define GetScoParameters to store data returned by this I/O control. The structure must be defined as follows.

struct {
  OUT BOOL  bScoSupported;  
    // TRUE if SCO is supported.
  OUT DWORD dwScoPacketMaxDataSize;  
    // The maximum SCO packet size
  OUT DWORD dwNumConcurrentScoPackets;  
    // The number of concurrent
    // SCO packets, which can be outstanding.
} GetScoParameters;

Requirements

See Also

Reference

Bluetooth HCI IOCTLs