drivers/usb/roles/Kconfig

Source file repositories/reference/linux-study-clean/drivers/usb/roles/Kconfig

File Facts

System
Linux kernel
Corpus path
drivers/usb/roles/Kconfig
Extension
[no extension]
Size
1050 bytes
Lines
30
Domain
Driver Families
Bucket
drivers/usb
Inferred role
Driver Families: build/configuration rule
Status
atlas-only

Why This File Exists

Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

Dependency Surface

Detected Declarations

Annotated Snippet

# SPDX-License-Identifier: GPL-2.0

config USB_ROLE_SWITCH
	tristate "USB Role Switch Support"
	help
	  USB Role Switch is a device that can select the USB role - host or
	  device - for a USB port (connector). In most cases dual-role capable
	  USB controller will also represent the switch, but on some platforms
	  multiplexer/demultiplexer switch is used to route the data lines on
	  the USB connector between separate USB host and device controllers.

	  Say Y here if your USB connectors support both device and host roles.
	  To compile the driver as module, choose M here: the module will be
	  called roles.ko.

if USB_ROLE_SWITCH

config USB_ROLES_INTEL_XHCI
	tristate "Intel XHCI USB Role Switch"
	depends on ACPI && X86
	help
	  Driver for the internal USB role switch for switching the USB data
	  lines between the xHCI host controller and the dwc3 gadget controller
	  found on various Intel SoCs.

	  To compile the driver as a module, choose M here: the module will
	  be called intel-xhci-usb-role-switch.

endif # USB_ROLE_SWITCH

Annotation

Implementation Notes