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Diffstat (limited to 'Documentation/ABI/testing/sysfs-devices-power')
| -rw-r--r-- | Documentation/ABI/testing/sysfs-devices-power | 88 |
1 files changed, 88 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/sysfs-devices-power b/Documentation/ABI/testing/sysfs-devices-power index 6123c523bfd..7628cd1bc36 100644 --- a/Documentation/ABI/testing/sysfs-devices-power +++ b/Documentation/ABI/testing/sysfs-devices-power | |||
| @@ -77,3 +77,91 @@ Description: | |||
| 77 | devices this attribute is set to "enabled" by bus type code or | 77 | devices this attribute is set to "enabled" by bus type code or |
| 78 | device drivers and in that cases it should be safe to leave the | 78 | device drivers and in that cases it should be safe to leave the |
| 79 | default value. | 79 | default value. |
| 80 | |||
| 81 | What: /sys/devices/.../power/wakeup_count | ||
| 82 | Date: September 2010 | ||
| 83 | Contact: Rafael J. Wysocki <rjw@sisk.pl> | ||
| 84 | Description: | ||
| 85 | The /sys/devices/.../wakeup_count attribute contains the number | ||
| 86 | of signaled wakeup events associated with the device. This | ||
| 87 | attribute is read-only. If the device is not enabled to wake up | ||
| 88 | the system from sleep states, this attribute is empty. | ||
| 89 | |||
| 90 | What: /sys/devices/.../power/wakeup_active_count | ||
| 91 | Date: September 2010 | ||
| 92 | Contact: Rafael J. Wysocki <rjw@sisk.pl> | ||
| 93 | Description: | ||
| 94 | The /sys/devices/.../wakeup_active_count attribute contains the | ||
| 95 | number of times the processing of wakeup events associated with | ||
| 96 | the device was completed (at the kernel level). This attribute | ||
| 97 | is read-only. If the device is not enabled to wake up the | ||
| 98 | system from sleep states, this attribute is empty. | ||
| 99 | |||
| 100 | What: /sys/devices/.../power/wakeup_hit_count | ||
| 101 | Date: September 2010 | ||
| 102 | Contact: Rafael J. Wysocki <rjw@sisk.pl> | ||
| 103 | Description: | ||
| 104 | The /sys/devices/.../wakeup_hit_count attribute contains the | ||
| 105 | number of times the processing of a wakeup event associated with | ||
| 106 | the device might prevent the system from entering a sleep state. | ||
| 107 | This attribute is read-only. If the device is not enabled to | ||
| 108 | wake up the system from sleep states, this attribute is empty. | ||
| 109 | |||
| 110 | What: /sys/devices/.../power/wakeup_active | ||
| 111 | Date: September 2010 | ||
| 112 | Contact: Rafael J. Wysocki <rjw@sisk.pl> | ||
| 113 | Description: | ||
| 114 | The /sys/devices/.../wakeup_active attribute contains either 1, | ||
| 115 | or 0, depending on whether or not a wakeup event associated with | ||
| 116 | the device is being processed (1). This attribute is read-only. | ||
| 117 | If the device is not enabled to wake up the system from sleep | ||
| 118 | states, this attribute is empty. | ||
| 119 | |||
| 120 | What: /sys/devices/.../power/wakeup_total_time_ms | ||
| 121 | Date: September 2010 | ||
| 122 | Contact: Rafael J. Wysocki <rjw@sisk.pl> | ||
| 123 | Description: | ||
| 124 | The /sys/devices/.../wakeup_total_time_ms attribute contains | ||
| 125 | the total time of processing wakeup events associated with the | ||
| 126 | device, in milliseconds. This attribute is read-only. If the | ||
| 127 | device is not enabled to wake up the system from sleep states, | ||
| 128 | this attribute is empty. | ||
| 129 | |||
| 130 | What: /sys/devices/.../power/wakeup_max_time_ms | ||
| 131 | Date: September 2010 | ||
| 132 | Contact: Rafael J. Wysocki <rjw@sisk.pl> | ||
| 133 | Description: | ||
| 134 | The /sys/devices/.../wakeup_max_time_ms attribute contains | ||
| 135 | the maximum time of processing a single wakeup event associated | ||
| 136 | with the device, in milliseconds. This attribute is read-only. | ||
| 137 | If the device is not enabled to wake up the system from sleep | ||
| 138 | states, this attribute is empty. | ||
| 139 | |||
| 140 | What: /sys/devices/.../power/wakeup_last_time_ms | ||
| 141 | Date: September 2010 | ||
| 142 | Contact: Rafael J. Wysocki <rjw@sisk.pl> | ||
| 143 | Description: | ||
| 144 | The /sys/devices/.../wakeup_last_time_ms attribute contains | ||
| 145 | the value of the monotonic clock corresponding to the time of | ||
| 146 | signaling the last wakeup event associated with the device, in | ||
| 147 | milliseconds. This attribute is read-only. If the device is | ||
| 148 | not enabled to wake up the system from sleep states, this | ||
| 149 | attribute is empty. | ||
| 150 | |||
| 151 | What: /sys/devices/.../power/autosuspend_delay_ms | ||
| 152 | Date: September 2010 | ||
| 153 | Contact: Alan Stern <stern@rowland.harvard.edu> | ||
| 154 | Description: | ||
| 155 | The /sys/devices/.../power/autosuspend_delay_ms attribute | ||
| 156 | contains the autosuspend delay value (in milliseconds). Some | ||
| 157 | drivers do not want their device to suspend as soon as it | ||
| 158 | becomes idle at run time; they want the device to remain | ||
| 159 | inactive for a certain minimum period of time first. That | ||
| 160 | period is called the autosuspend delay. Negative values will | ||
| 161 | prevent the device from being suspended at run time (similar | ||
| 162 | to writing "on" to the power/control attribute). Values >= | ||
| 163 | 1000 will cause the autosuspend timer expiration to be rounded | ||
| 164 | up to the nearest second. | ||
| 165 | |||
| 166 | Not all drivers support this attribute. If it isn't supported, | ||
| 167 | attempts to read or write it will yield I/O errors. | ||