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Document behaviour of "quiescent" reboot reason

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On Android TV, adding ",quiescent" to the reboot reason performs a
quiescent boot, during which the screen stays off.

Bug: 178802099
Test: Still compiles
Change-Id: Ib593ba863a718f869bbd04ff24593d0e0a384d99
This commit is contained in:
Robert Horvath
2021-02-02 13:55:57 +01:00
parent d8343be5ac
commit ddb768648f
1 changed files with 6 additions and 0 deletions
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6
core/java/android/os/PowerManager.java
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@@ -1629,6 +1629,12 @@ public final class PowerManager {
* <p>
* Requires the {@link android.Manifest.permission#REBOOT} permission.
* </p>
* <p>
* If the {@code reason} string contains ",quiescent", then the screen stays off during reboot
* and is not turned on again until the user triggers the device to wake up (for example,
* by pressing the power key).
* This behavior applies to Android TV devices launched on Android 11 (API level 30) or higher.
* </p>
*
* @param reason code to pass to the kernel (e.g., "recovery") to
* request special boot modes, or null.