Lines Matching refs:to
6 provide a unified interface to the power management
20 states from the deepest ("mem", always present) to the
26 "mem" - "suspend-to-RAM", present if supported.
28 "freeze" - "suspend-to-idle", always present.
30 Writing to this file one of these strings causes the system to
33 "suspend-to-RAM", "power-on suspend" and "suspend-to-idle" mean.
40 suspend-to-disk mechanism. Reading from this file returns
41 the name of the method by which the system will be put to
43 'firmware' - means that the memory image will be saved to disk
47 the system will be put to sleep by the platform driver (e.g.
54 Additionally, /sys/power/disk can be used to turn on one of the
55 two testing modes of the suspend-to-disk mechanism: 'testproc'
56 or 'test'. If the suspend-to-disk mechanism is in the
57 'testproc' mode, writing 'disk' to /sys/power/state will cause
58 the kernel to disable nonboot CPUs and freeze tasks, wait for 5
60 the 'test' mode, writing 'disk' to /sys/power/state will cause
61 the kernel to disable nonboot CPUs and freeze tasks, shrink
63 unfreeze tasks and enable nonboot CPUs. Then, we are able to
67 The suspend-to-disk method may be chosen by writing to this
77 It will only change to 'firmware' or 'platform' if the system
85 created by the suspend-to-disk mechanism. It can be written a
88 suspend-to-disk code will do its best to ensure the image size
89 will not exceed this number. However, if it turns out to be
90 impossible, the kernel will try to suspend anyway using the
91 smallest image possible. In particular, if "0" is written to
95 limit, which is set to 500 MB by default.
104 commonly, during resume). Namely, the RTC is only used to save
106 it contains '0' which may be changed to '1' by writing a
109 To use this debugging feature you should attempt to suspend
114 If you do not get any matches (or they appear to be false
116 referred to a device created by a loadable kernel module. In
121 clock to be set to a random invalid time after a resume.
135 The advantage of this file over the hash matches printed to the
139 Due to the small hash size necessary to fit in the RTC, it is
141 case further investigation is required to determine which
151 user space to enable or disable asynchronous suspend and resume
153 drivers' suspend and resume callbacks to be executed in parallel
156 disabled by writing "0" to this file, in which case all devices
163 The /sys/power/wakeup_count file allows user space to put the
168 read from. Writing to it will only succeed if the current
169 number of wakeup events is equal to the written value and, if
171 to a sleep state if any wakeup events are reported after the
178 The /sys/power/reserved_size file allows user space to control
182 will be used as the amount of memory to reserve for allocations
186 set to 1 MB by default.
194 work item attempting to trigger a transition of the system to
198 of whether or not the attempt to put the system to sleep has
200 writes "off" to /sys/power/autosleep.
203 written to it to be returned.
209 The /sys/power/wake_lock file allows user space to create
213 string without white space is written to /sys/power/wake_lock,
214 it will be assumed to represent a wakeup source name. If there
218 If a string written to /sys/power/wake_lock contains white
236 The /sys/power/wake_unlock file allows user space to deactivate
238 When a string is written to /sys/power/wake_unlock, it will be
239 assumed to represent the name of a wakeup source to deactivate.
251 The /sys/power/pm_print_times file allows user space to
252 control whether the time taken by devices to suspend and
254 devices that take too long to suspend or resume.
264 The /sys/power/pm_wakeup_irq file reports to user space the IRQ