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Diffstat (limited to 'drivers/usb/Kconfig')
| -rw-r--r-- | drivers/usb/Kconfig | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/drivers/usb/Kconfig b/drivers/usb/Kconfig index 8689dcba5201..6dfa10af7185 100644 --- a/drivers/usb/Kconfig +++ b/drivers/usb/Kconfig @@ -160,4 +160,24 @@ config USB_LED_TRIG LEDs and you want to use them as activity indicators for USB host or gadget. +config USB_ULPI_BUS + tristate "USB ULPI PHY interface support" + help + UTMI+ Low Pin Interface (ULPI) is specification for a commonly used + USB 2.0 PHY interface. The ULPI specification defines a standard set + of registers that can be used to detect the vendor and product which + allows ULPI to be handled as a bus. This module is the driver for that + bus. + + The ULPI interfaces (the buses) are registered by the drivers for USB + controllers which support ULPI register access and have ULPI PHY + attached to them. The ULPI PHY drivers themselves are normal PHY + drivers. + + ULPI PHYs provide often functions such as ADP sensing/probing (OTG + protocol) and USB charger detection. + + To compile this driver as a module, choose M here: the module will + be called ulpi. + endif # USB_SUPPORT |