# HwBinder IPC from client to server, and callbacks binder_call(hal_usb_gadget_client, hal_usb_gadget_server) binder_call(hal_usb_gadget_server, hal_usb_gadget_client) hal_attribute_hwservice(hal_usb_gadget, hal_usb_gadget_hwservice) # Configuring usb gadget functions allow hal_usb_gadget_server configfs:lnk_file { read create unlink}; allow hal_usb_gadget_server configfs:dir rw_dir_perms; allow hal_usb_gadget_server configfs:file create_file_perms; allow hal_usb_gadget_server functionfs:dir { read search }; allow hal_usb_gadget_server functionfs:file read;