Jerry Zhang <zhangjerry@xxxxxxxxxx> writes: > Control_config is a group under gadget that acts > as a normal config group, except it does not > appear in cdev->configs. > > Functions that have exactly zero descriptors can > be linked into control_config. These functions > are bound and unbound with the rest of the gadget, > but are never enabled. Also, functions with zero > descriptors cannot be used in real configs. > > Create configfs_setup(), which will first attempt > composite setup. If that fails, it will go through > functions in control_config and use req_match to > find and deliver the request to a function that can > handle it. > > This allows the user to create a functionfs instance > dedicated to handling non-standard control requests > no matter what functions or configurations are > currently active. > > Signed-off-by: Jerry Zhang <zhangjerry@xxxxxxxxxx> I didn't get patch 1 -- balbi
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