/* * u_tcm.h * * Utility definitions for the tcm function * * Copyright (c) 2015 Samsung Electronics Co., Ltd. * http://www.samsung.com * * Author: Andrzej Pietrasiewicz * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. */ #ifndef U_TCM_H #define U_TCM_H #include /** * @dependent: optional dependent module. Meant for legacy gadget. * If non-null its refcount will be increased when a tpg is created and * decreased when tpg is dropped. * @dep_lock: lock for dependent module operations. * @ready: true if the dependent module information is set. * @can_attach: true a function can be bound to gadget * @has_dep: true if there is a dependent module * */ struct f_tcm_opts { struct usb_function_instance func_inst; struct module *dependent; struct mutex dep_lock; bool ready; bool can_attach; bool has_dep; /* * Callbacks to be removed when legacy tcm gadget disappears. * * If you use the new function registration interface * programmatically, you MUST set these callbacks to * something sensible (e.g. probe/remove the composite). */ int (*tcm_register_callback)(struct usb_function_instance *); void (*tcm_unregister_callback)(struct usb_function_instance *); }; #endif /* U_TCM_H */ r
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