IRB_REQ_SEND_PHY_PACKET - NtDoc

Native API online documentation, based on the System Informer (formerly Process Hacker) phnt headers 
// 1394.h

typedef struct _IRB_REQ_SEND_PHY_PACKET {
  ULONG          Flags;
  ULONG          GenerationCount;
  ULARGE_INTEGER PhyPacket;
} IRB_REQ_SEND_PHY_PACKET;

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Windows Driver Kit DDI reference (ns-1394-_irb_req_send_phy_packet)

_IRB_REQ_SEND_PHY_PACKET structure

Description

This structure contains the fields necessary to carry out a SendPhyPacket request.

Members

Flags

Specifies any nondefault settings for this operation. Set to ASYNC_FLAGS_NO_STATUS to always return success from the send PHY packet operation, regardless of whether the send PHY packet succeeds or fails.

GenerationCount

Specifies the bus reset generation as known by the device driver that submits this request. If the specified generation count does not match the actual generation of the bus, this request is returned with a status of STATUS_INVALID_GENERATION.

PhyPacket

Specifies the 64-bit PHY packet that is sent to the 1394 bus.

Remarks

If successful, the new 1394 bus driver (1394ohci.sys) sets Irp->IoStatus.Status to STATUS_SUCCESS. If u.SendPhyPacket.GenerationCount does not match the current bus generation count, the new 1394 bus driver sets Irp->IoStatus.Status to STATUS_INVALID_GENERATION

View the official Windows Driver Kit DDI reference

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