1 # SPDX-License-Identifier: GPL-2.0
8 bool "USB LED Triggers"
9 depends on LEDS_CLASS && LEDS_TRIGGERS
12 This option adds LED triggers for USB host and/or gadget activity.
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
19 tristate "USB ULPI PHY interface support"
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
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
33 ULPI PHYs provide often functions such as ADP sensing/probing (OTG
34 protocol) and USB charger detection.
36 To compile this driver as a module, choose M here: the module will
40 tristate "USB GPIO Based Connection Detection Driver"
42 select USB_ROLE_SWITCH
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.
50 To compile the driver as a module, choose M here: the module will
51 be called usb-conn-gpio.ko