IOCTL_1394_CLASS IOCTL (1394.h)
An IEEE 1394 driver uses the IRP_MJ_INTERNAL_DEVICE_CONTROL IRP, with IoControlCode IOCTL_1394_CLASS, to communicate with the bus driver. The driver has access to all operations provided by the IEEE 1394 bus and its host controller through this request.
Major code
Input buffer
Parameters->Others.Arguments1 points to an IRB structure. The FunctionNumber member of the IRB specifies the type of request. The u member of the IRB is a union that specifies the request-type-specific parameters of the request. The parameters and their meaning are documented with each request.
Legal requests are as follows:
REQUEST_ALLOCATE_ADDRESS_RANGE
REQUEST_ASYNC_LOCK
REQUEST_ASYNC_READ
REQUEST_ASYNC_STREAM
REQUEST_ASYNC_WRITE
REQUEST_BUS_RESET
REQUEST_BUS_RESET_NOTIFICATION
REQUEST_CONTROL
REQUEST_FREE_ADDRESS_RANGE
REQUEST_GET_ADDR_FROM_DEVICE_OBJECT
REQUEST_GET_CONFIGURATION_INFO
REQUEST_GET_GENERATION_COUNT
REQUEST_GET_LOCAL_HOST_INFO
REQUEST_GET_SPEED_BETWEEN_DEVICES
REQUEST_GET_SPEED_TOPOLOGY_MAPS
REQUEST_ISOCH_ALLOCATE_BANDWIDTH
REQUEST_ISOCH_ALLOCATE_CHANNEL
REQUEST_ISOCH_ALLOCATE_RESOURCES
REQUEST_ISOCH_ATTACH_BUFFERS
REQUEST_ISOCH_DETACH_BUFFERS
REQUEST_ISOCH_FREE_BANDWIDTH
REQUEST_ISOCH_FREE_CHANNEL
REQUEST_ISOCH_FREE_RESOURCES
REQUEST_ISOCH_LISTEN
REQUEST_ISOCH_QUERY_CYCLE_TIME
REQUEST_ISOCH_QUERY_RESOURCES
REQUEST_ISOCH_SET_CHANNEL_BANDWIDTH
REQUEST_ISOCH_STOP
REQUEST_ISOCH_TALK
REQUEST_SEND_PHY_CONFIG_PACKET
REQUEST_SET_DEVICE_XMIT_PROPERTIES
REQUEST_SET_LOCAL_HOST_PROPERTIES
Output buffer
Parameters->Others.Arguments1 points to the IRB structure passed as input. As part of completing the request, the bus driver fills in certain members of the u member with information for the driver. The returned information is documented below with each request.
Status block
The information the bus driver returns in the I/O Status Block is documented below with each request.
Requirements
| Requirement | Value |
|---|---|
| Header | 1394.h (include 1394.h) |
See also
IOCTL_IEEE1394_API_REQUEST