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kernel/linux-rt-4.4.41/drivers/usb/dwc2/Kconfig 3.06 KB
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  config USB_DWC2
  	tristate "DesignWare USB2 DRD Core Support"
  	depends on USB || USB_GADGET
  	help
  	  Say Y here if your system has a Dual Role Hi-Speed USB
  	  controller based on the DesignWare HSOTG IP Core.
  
  	  For host mode, if you choose to build the driver as dynamically
  	  linked modules, the core module will be called dwc2.ko, the PCI
  	  bus interface module (if you have a PCI bus system) will be
  	  called dwc2_pci.ko, and the platform interface module (for
  	  controllers directly connected to the CPU) will be called
  	  dwc2_platform.ko. For all modes(host, gadget and dual-role), there
  	  will be an additional module named dwc2.ko.
  
  if USB_DWC2
  
  choice
  	bool "DWC2 Mode Selection"
  	default USB_DWC2_DUAL_ROLE if (USB && USB_GADGET)
  	default USB_DWC2_HOST if (USB && !USB_GADGET)
  	default USB_DWC2_PERIPHERAL if (!USB && USB_GADGET)
  
  config USB_DWC2_HOST
  	bool "Host only mode"
  	depends on USB=y || (USB_DWC2=m && USB)
  	help
  	  The Designware USB2.0 high-speed host controller
  	  integrated into many SoCs. Select this option if you want the
  	  driver to operate in Host-only mode.
  
  comment "Gadget/Dual-role mode requires USB Gadget support to be enabled"
  
  config USB_DWC2_PERIPHERAL
  	bool "Gadget only mode"
  	depends on USB_GADGET=y || USB_GADGET=USB_DWC2
  	help
  	  The Designware USB2.0 high-speed gadget controller
  	  integrated into many SoCs. Select this option if you want the
  	  driver to operate in Peripheral-only mode. This option requires
  	  USB_GADGET to be enabled.
  
  config USB_DWC2_DUAL_ROLE
  	bool "Dual Role mode"
  	depends on (USB=y && USB_GADGET=y) || (USB_DWC2=m && USB && USB_GADGET)
  	help
  	  Select this option if you want the driver to work in a dual-role
  	  mode. In this mode both host and gadget features are enabled, and
  	  the role will be determined by the cable that gets plugged-in. This
  	  option requires USB_GADGET to be enabled.
  endchoice
  
  config USB_DWC2_PCI
  	tristate "DWC2 PCI"
  	depends on PCI
  	default n
  	select NOP_USB_XCEIV
  	help
  	  The Designware USB2.0 PCI interface module for controllers
  	  connected to a PCI bus.
  
  config USB_DWC2_DEBUG
  	bool "Enable Debugging Messages"
  	help
  	  Say Y here to enable debugging messages in the DWC2 Driver.
  
  config USB_DWC2_VERBOSE
  	bool "Enable Verbose Debugging Messages"
  	depends on USB_DWC2_DEBUG
  	help
  	  Say Y here to enable verbose debugging messages in the DWC2 Driver.
  	  WARNING: Enabling this will quickly fill your message log.
  	  If in doubt, say N.
  
  config USB_DWC2_TRACK_MISSED_SOFS
  	bool "Enable Missed SOF Tracking"
  	help
  	  Say Y here to enable logging of missed SOF events to the dmesg log.
  	  WARNING: This feature is still experimental.
  	  If in doubt, say N.
  
  config USB_DWC2_DEBUG_PERIODIC
  	bool "Enable Debugging Messages For Periodic Transfers"
  	depends on USB_DWC2_DEBUG || USB_DWC2_VERBOSE
  	default y
  	help
  	  Say N here to disable (verbose) debugging messages to be
  	  logged for periodic transfers. This allows better debugging of
  	  non-periodic transfers, but of course the debug logs will be
  	  incomplete. Note that this also disables some debug messages
  	  for which the transfer type cannot be deduced.
  endif