1# SPDX-License-Identifier: GPL-2.0 2 3config USB_COMMON 4 tristate 5 6 7config USB_LED_TRIG 8 bool "USB LED Triggers" 9 depends on LEDS_CLASS && LEDS_TRIGGERS 10 select USB_COMMON 11 help 12 This option adds LED triggers for USB host and/or gadget activity. 13 14 Say Y here if you are working on a system with led-class supported 15 LEDs and you want to use them as activity indicators for USB host or 16 gadget. 17 18config USB_ULPI_BUS 19 tristate "USB ULPI PHY interface support" 20 select USB_COMMON 21 help 22 UTMI+ Low Pin Interface (ULPI) is specification for a commonly used 23 USB 2.0 PHY interface. The ULPI specification defines a standard set 24 of registers that can be used to detect the vendor and product which 25 allows ULPI to be handled as a bus. This module is the driver for that 26 bus. 27 28 The ULPI interfaces (the buses) are registered by the drivers for USB 29 controllers which support ULPI register access and have ULPI PHY 30 attached to them. The ULPI PHY drivers themselves are normal PHY 31 drivers. 32 33 ULPI PHYs provide often functions such as ADP sensing/probing (OTG 34 protocol) and USB charger detection. 35 36 To compile this driver as a module, choose M here: the module will 37 be called ulpi. 38 39config USB_CONN_GPIO 40 tristate "USB GPIO Based Connection Detection Driver" 41 depends on GPIOLIB 42 select USB_ROLE_SWITCH 43 help 44 The driver supports USB role switch between host and device via GPIO 45 based USB cable detection, used typically if an input GPIO is used 46 to detect USB ID pin, and another input GPIO may be also used to detect 47 Vbus pin at the same time, it also can be used to enable/disable 48 device if an input GPIO is only used to detect Vbus pin. 49 50 To compile the driver as a module, choose M here: the module will 51 be called usb-conn-gpio.ko 52