Skip to main content

Apple Developer Docs

Fonts Symbols

Kernel / tIOUSB30HubExtStatus / kIOUSB30HubExtStatusTxSublinkSpeedID

kIOUSB30HubExtStatusTxSublinkSpeedID

The transmit sublink speed identifier.

Declaration

kIOUSB30HubExtStatusTxSublinkSpeedID = IOUSBBitRange(4, 7)

Open on developer.apple.com

KernelEnumeration Case

macOS 10.15+

Built on 2026-05-07