// bthxddi.h

typedef struct _BTHX_HCI_READ_WRITE_CONTEXT {
  ULONG DataLen;
  UCHAR Type;
  UCHAR Data[1];
} BTHX_HCI_READ_WRITE_CONTEXT, *PBTHX_HCI_READ_WRITE_CONTEXT;
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Windows Driver Kit DDI reference (ns-bthxddi-_bthx_hci_read_write_context)

_BTHX_HCI_READ_WRITE_CONTEXT structure

Description

The BTHX_HCI_READ_WRITE_CONTEXT structure is used by IOCTL_BTHX_READ_HCI and IOCTL_BTHX_WRITE_HCI for input and output.

Members

`DataLen`

The length of data contained in the Data field, in bytes.

`Type`

The type of packetized data.

`Data`

Actual data to be read/written.

Remarks

The BTHX_HCI_READ_WRITE_CONTEXT structure is an input parameter to IOCTL_BTHX_WRITE_HCI and specifies the type of packet associated with the write. It also specifies the data to be written in the Data member.

This structure is also used as an output parameter for IOCTL_BTHX_READ_HCI and specifies the type of packet and the data associated with the read.

This structure is packed to 1-byte boundary.

BTHX_HCI_READ_WRITE_CONTEXT - NtDoc