On Mon, Jan 19, 2015 at 02:17:19PM +0100, Krzysztof Opasiak wrote: > Driver which provides implementation of some USB functions > registers usb_function_driver structure in composite framework. > Function drivers are identifed using registered name. > > When gadget is composed using configfs user must know what > names has been registered. If function is compiled as a module > this information can be found in modules.alias file. If > function is compiled-in, there is no way to discover what > usb functions are available in currently running kernel. > > Such situation is nothing new for linux kernel. > Similar situation is with file systems. While mounting user > can provide an fs type argument using -t option in mount. > Those type names are registered by drivers. To make those names > discoverable there is a /proc/filesystems which > exports the list of currently registered file systems. > > This patch adds /proc/usb-functions attribute which exports > the list of currently registered function drivers. > This allows user to discover list of both compiled-in functions > and from loaded kernel modules. > > Signed-off-by: Krzysztof Opasiak <k.opasiak@xxxxxxxxxxx> you need to document the new file under Documentation/ABI/ -- balbi
Attachment:
signature.asc
Description: Digital signature
