Effective in 2026, to align with our trunk stable development model and ensure platform stability for the ecosystem, we will publish source code to AOSP in Q2 and Q4. For building and contributing to AOSP, use android-latest-release. The android-latest-release manifest branch will always reference the most recent release pushed to AOSP. For more information, see Changes to AOSP.

HsumHelper

public final class HsumHelper
extends Object

java.lang.Object
↳	com.android.tradefed.device.HsumHelper

Provides utilities for HSUM (Headless System User Mode) tasks

Summary

Constants
`String`	`BOOT_STRATEGY_PROPERTY`

Public constructors
`HsumHelper(ITestDevice device)`

Public methods
`HsumHelper.HsumBootStrategy`	`getHsumBootStrategy()` Gets the device's `HsumBootStrategy`.
`void`	`setHsumBootStrategy(HsumHelper.HsumBootStrategy strategy)` Sets the device's `HsumBootStrategy`

Constants

BOOT_STRATEGY_PROPERTY

public static final String BOOT_STRATEGY_PROPERTY

Constant Value: "persist.user.hsum_boot_strategy"

Public constructors

HsumHelper

public HsumHelper (ITestDevice device)

Parameters
`device`	`ITestDevice`

Public methods

getHsumBootStrategy

public HsumHelper.HsumBootStrategy getHsumBootStrategy ()

Gets the device's HsumBootStrategy.

Returns
`HsumHelper.HsumBootStrategy`

Throws
`IllegalStateException`	if the current strategy is set to an invalid value.
`DeviceNotAvailableException`

setHsumBootStrategy

public void setHsumBootStrategy (HsumHelper.HsumBootStrategy strategy)

Sets the device's HsumBootStrategy

Parameters
`strategy`	`HsumHelper.HsumBootStrategy`

Throws
`DeviceNotAvailableException`