Function Filesystem
modulename: g_ffs.ko
configname: CONFIG_USB_FUNCTIONFS
Linux Kernel Configuration
└─>Device Drivers
└─>USB support
└─>USB Gadget Support
└─>USB Gadget precomposed configurations
└─>Function Filesystem
In linux kernel since version 2.6.35 (release Date: 2010-08-01)
The Function Filesystem (FunctionFS) lets one create USB
composite functions in user space in the same way 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.
If you say "y" or "m" here you will be able what kind of
configurations the gadget will provide.
Say "y" to link the driver statically, or "m" to build
a dynamically linked module called "g_ffs".
composite functions in user space in the same way 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.
If you say "y" or "m" here you will be able what kind of
configurations the gadget will provide.
Say "y" to link the driver statically, or "m" to build
a dynamically linked module called "g_ffs".