Lines Matching refs:power

227      * @brief       Add an IOService created by Create() to the power manangement tree.
228 … IOService objects created by matching on a provider are always added to the power management tree.
236      * @brief       Notification of change in power state of a provider.
237 …* @discussion  DriverKit notifies of changes in power of a provider. The driver should make itself…
239      * @param       powerFlags The power capabilities of the new state. The values possible are:
242 	 *  kIOServicePowerCapabilityLow the device is in a reduced power state while the system is running
250      * @brief       Allow provider to enter a low power state.
251      * @discussion  A driver may allow a device to enter a lower power state. 
252      * @param       powerFlags The power capabilities of the new state. The values possible are:
253 	 *  kIOServicePowerCapabilityLow the device is in a reduced power state while the system is running
261      * @brief       Request provider to create a power override.
262 …ion  Allows a driver to ignore power desires of its children, similar to powerOverrideOnPriv in IO…
263      * @param       enable Whether to enable or disable the power override.
330     * @brief       Reduce power saving modes in the system in order to provide decreased latency
332     * @discussion  When the system enters lower power states DMA access to memory may be affected.
335 …*			   However, if this is not possible, your driver can inform power management when a time-criti…
336 …*			   begins and ends so that the system will not enter the lowest power states during that time.…
337 …*			   pass a value to requireMaxBusStall that informs power management of the maximum memory acce…
341 	*			   Pass the largest value possible that works for your device. This will minimize power
342 	*			   consumption and maximize battery life by still allowing some level of CPU power management.