|USBA_HCDI_GET_DEVICE_PRIVATE(9F)||Kernel Functions for Drivers||USBA_HCDI_GET_DEVICE_PRIVATE(9F)|
get HCD per-device private value
Volatile - illumos USB HCD private function
This is a private function that is not part of the stable DDI. It may be removed or changed at any time.
function obtains the private data set by a HCD driver. This private data is
created by the HCD driver's optional entry point
and is removed during the HCD driver's optional entry point
If an HCD driver does not implement these entry points then the value
obtained by a call will always be the null pointer,
The framework provides no form of locking of this data and it is up to the HCD driver to use whatever synchronization primitives it requires if needed.
function is generally called from the context of a
usba_hcdi(9E) entry point, but may
be called from user, kernel, or interrupt context.
The private data set by an HCD driver is always returned. If no
such value has been set, then
NULL is returned.
|May 7, 2016||OmniOS|