Ceddk.dll Bus Access IOCTLs (Compact 2013)
3/26/2014
The following table shows the IOCTLs that operate with a bus driver handle. These IOCTLs complement the Ceddk.dll Bus Access Functions.
IOCTL |
Description |
|---|---|
IOCTL_BUS_ACTIVATE_CHILD |
This IOCTL loads a specified subordinate driver. |
IOCTL_BUS_DEACTIVATE_CHILD |
This IOCTL unloads a specified subordinate driver. |
IOCTL_BUS_DISABLE_CHILD |
This IOCTL enables a specified subordinate driver. |
IOCTL_BUS_ENABLE_CHILD |
This IOCTL disables a specified subordinate driver. |
IOCTL_BUS_GET_CONFIGURE_DATA |
This IOCTL reads from the configuration space of a subordinate driver specified by the bus name. Different buses have different configuration space names.
|
IOCTL_BUS_GET_POWER_STATE |
This IOCTL obtains the bus power level for a subordinate driver. Power control operations should only be initiated by the subordinate driver affected by the request. |
IOCTL_BUS_IS_CHILD_ENABLE |
This IOCTL determines whether the subordinate driver has been enabled. |
IOCTL_BUS_IS_CHILD_REMOVED |
This IOCTL determines whether the subordinate driver has been removed. Subordinate drivers can use this to check if the caller has been removed or not. This call can also be used in subordinate driver's power callback. |
IOCTL_BUS_NAME_PREFIX |
This IOCTL retrieves the bus name prefix. |
IOCTL_BUS_POSTINIT |
This IOCTL unloads a subordinate driver in an alternate thread, which enables subordinate drivers to request that they themselves be unloaded. |
IOCTL_BUS_SET_CONFIGURE_DATA |
This IOCTL writes to configuration address space for a subordinate driver specified by the bus name. Different buses have different configuration address space names. |
IOCTL_BUS_SET_POWER_STATE |
This IOCTL changes the bus power level for a subordinate driver specified by the bus name. Client drivers request this service from their bus drivers. Power control operations should only be initiated by the subordinate driver affected by the request. |
IOCTL_BUS_TRANSLATE_BUS_ADDRESS |
This IOCTL translates the physical bus address to the physical system address. Use this function to replace the legacy HalTranslateBusAddress function. |
IOCTL_BUS_TRANSLATE_SYSTEM_ADDRESS |
This IOCTL performs a device bus address translation. |