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  "title" : "Link Power Management Capabilities"
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# Link Power Management Capabilities

Constants for link power management capabilities.

## Topics

### Getting the Capabilities

[`kIOUSBUSB20ExtensionCapabilityLPM`](/documentation/USBDriverKit/kIOUSBUSB20ExtensionCapabilityLPM)

[`kIOUSBUSB20ExtensionCapabilityBESLSupport`](/documentation/USBDriverKit/kIOUSBUSB20ExtensionCapabilityBESLSupport)

[`kIOUSBUSB20ExtensionCapabilityBESLValid`](/documentation/USBDriverKit/kIOUSBUSB20ExtensionCapabilityBESLValid)

[`kIOUSBUSB20ExtensionCapabilityBESLDValid`](/documentation/USBDriverKit/kIOUSBUSB20ExtensionCapabilityBESLDValid)

[`kIOUSBUSB20ExtensionCapabilityBESL`](/documentation/USBDriverKit/kIOUSBUSB20ExtensionCapabilityBESL)

[`kIOUSBUSB20ExtensionCapabilityBESLPhase`](/documentation/USBDriverKit/kIOUSBUSB20ExtensionCapabilityBESLPhase)

[`kIOUSBUSB20ExtensionCapabilityBESLD`](/documentation/USBDriverKit/kIOUSBUSB20ExtensionCapabilityBESLD)

[`kIOUSBUSB20ExtensionCapabilityBESLDPhase`](/documentation/USBDriverKit/kIOUSBUSB20ExtensionCapabilityBESLDPhase)


---

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