IPCR - NtDoc

Native API online documentation, based on the System Informer (formerly Process Hacker) phnt headers 
// 61883.h

typedef struct _IPCR {
  ULONG Reserved0 : 16;
  ULONG Channel : 6;
  ULONG Reserved1 : 2;
  ULONG PPCCounter : 6;
  ULONG BCCCounter : 1;
  ULONG OnLine : 1;
} IPCR, *PIPCR;
View the official Windows Driver Kit DDI reference

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Windows Driver Kit DDI reference (ns-61883-_ipcr)

_IPCR structure

Description

The IPCR structure contains initialization values for an input plug.

Members

Reserved0

Reserved.

Channel

Indicates the channel number that the input plug shall use to transmit the isochronous data flow, for a suspended input plug. For an active input plug it indicates the actual channel number that the input plug uses to transmit the isochronous data flow. For an unconnected input plug it has no meaning.

Reserved1

Reserved.

PPCCounter

Indicates the number of point-to-point connections to the input plug.

BCCCounter

Indicates, when one, that there is a broadcast-in connection to the input plug. When zero it indicates that there is no connection.

OnLine

Indicates, when one, that the corresponding input plug is on-line. When zero it indicates that the input plug is off-line.

See also

AV_PCR

View the official Windows Driver Kit DDI reference

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