CONFIG_USB_EHCI_ROOT_HUB_TT: Root Hub Transaction Translators

General informations

The Linux kernel configuration item CONFIG_USB_EHCI_ROOT_HUB_TT has multiple definitions:

Root Hub Transaction Translators found in drivers/usb/host/Kconfig

The configuration item CONFIG_USB_EHCI_ROOT_HUB_TT:

• prompt: Root Hub Transaction Translators
• type: bool
• depends on: CONFIG_USB_EHCI_HCD
• defined in drivers/usb/host/Kconfig
• found in Linux kernels: 2.6.26–2.6.39, 3.0–3.19, 4.0–4.20, 5.0–5.19, 6.0–6.17, 6.18-rc+HEAD

Help text

Some EHCI chips have vendor-specific extensions to integrate transaction translators, so that no OHCI or UHCI companion controller is needed. It's safe to say "y" even if your controller doesn't support this feature.

This supports the EHCI implementation that's originally from ARC, and has since changed hands a few times.

Root Hub Transaction Translators (EXPERIMENTAL) found in drivers/usb/host/Kconfig

The configuration item CONFIG_USB_EHCI_ROOT_HUB_TT:

• prompt: Root Hub Transaction Translators (EXPERIMENTAL)
• type: bool
• depends on: CONFIG_USB_EHCI_HCD && CONFIG_EXPERIMENTAL
• defined in drivers/usb/host/Kconfig
• found in Linux kernels: 2.6.6–2.6.25

Help text

Some EHCI chips have vendor-specific extensions to integrate transaction translators, so that no OHCI or UHCI companion controller is needed. It's safe to say "y" even if your controller doesn't support this feature.

This supports the EHCI implementation that's originally from ARC, and has since changed hands a few times.

Hardware

LKDDb

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Sources

This page is automaticly generated with free (libre, open) software lkddb(see lkddb-sources).

The data is retrived from:

• Linux kernel
• Linux Kernel Driver DataBase (LKDDb)

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