1 files changed, 37 insertions, 0 deletions

diff --git a/drivers/usb/gadget/Kconfig b/drivers/usb/gadget/Kconfig
index 96e1494723ad..0282c50d6404 100644
--- a/drivers/usb/gadget/Kconfig
+++ b/drivers/usb/gadget/Kconfig
@@ -710,6 +710,43 @@ config USB_GADGETFS
           Say "y" to link the driver statically, or "m" to build a
           dynamically linked module called "gadgetfs".
 
+config USB_FUNCTIONFS
+        tristate "Function Filesystem (EXPERIMENTAL)"
+        depends on EXPERIMENTAL
+        help
+          The Function Filesystem (FunctioFS) lets one create USB
+          composite functions in user space in the same way as GadgetFS
+          lets one create USB gadgets in user space.  This allows creation
+          of composite gadgets such that some of the functions are
+          implemented in kernel space (for instance Ethernet, serial or
+          mass storage) and other are implemented in user space.
+
+          Say "y" to link the driver statically, or "m" to build
+          a dynamically linked module called "g_ffs".
+
+config USB_FUNCTIONFS_ETH
+        bool "Include CDC ECM (Ethernet) function"
+        depends on USB_FUNCTIONFS
+        help
+          Include an CDC ECM (Ethernet) funcion in the CDC ECM (Funcion)
+          Filesystem.  If you also say "y" to the RNDIS query below the
+          gadget will have two configurations.
+
+config USB_FUNCTIONFS_RNDIS
+        bool "Include RNDIS (Ethernet) function"
+        depends on USB_FUNCTIONFS
+        help
+          Include an RNDIS (Ethernet) funcion in the Funcion Filesystem.
+          If you also say "y" to the CDC ECM query above the gadget will
+          have two configurations.
+
+config USB_FUNCTIONFS_GENERIC
+        bool "Include 'pure' configuration"
+        depends on USB_FUNCTIONFS && (USB_FUNCTIONFS_ETH || USB_FUNCTIONFS_RNDIS)
+        help
+          Include a configuration with FunctionFS and no Ethernet
+          configuration.
+
 config USB_FILE_STORAGE
         tristate "File-backed Storage Gadget"
         depends on BLOCK