Skip to main content

Apple Developer Docs

Fonts Symbols

IOKit / kUSBMaxIsocFrameReqCount / kUSBMaxHSIsocFrameCount

kUSBMaxHSIsocFrameCount

Declaration

kUSBMaxHSIsocFrameCount = 7168

Open on developer.apple.com

IOKitEnumeration Case

Mac Catalyst 18.4+macOS 10.3+

Built on 2026-05-07