Based on kernel version 2.6.26. Page generated on 2008-07-16 21:12 EST.
1 2 3 Supporting multiple CPU idle levels in kernel 4 5 cpuidle drivers 6 7 8 9 10 cpuidle driver hooks into the cpuidle infrastructure and handles the 11 architecture/platform dependent part of CPU idle states. Driver 12 provides the platform idle state detection capability and also 13 has mechanisms in place to support actual entry-exit into CPU idle states. 14 15 cpuidle driver initializes the cpuidle_device structure for each CPU device 16 and registers with cpuidle using cpuidle_register_device. 17 18 It can also support the dynamic changes (like battery <-> AC), by using 19 cpuidle_pause_and_lock, cpuidle_disable_device and cpuidle_enable_device, 20 cpuidle_resume_and_unlock. 21 22 Interfaces: 23 extern int cpuidle_register_driver(struct cpuidle_driver *drv); 24 extern void cpuidle_unregister_driver(struct cpuidle_driver *drv); 25 extern int cpuidle_register_device(struct cpuidle_device *dev); 26 extern void cpuidle_unregister_device(struct cpuidle_device *dev); 27 28 extern void cpuidle_pause_and_lock(void); 29 extern void cpuidle_resume_and_unlock(void); 30 extern int cpuidle_enable_device(struct cpuidle_device *dev); 31 extern void cpuidle_disable_device(struct cpuidle_device *dev);