HelenOS sources

INTERFACE_VFS_DRIVER_CB  402 uspace/lib/fs/libfs.c 	rc = async_create_callback_port(exch, INTERFACE_VFS_DRIVER_CB, 0, 0,
INTERFACE_VFS_DRIVER_CB  185 uspace/srv/vfs/vfs_register.c 	async_sess_args_set(fs_info->sess, INTERFACE_VFS_DRIVER_CB, 0, 0);