CompatibleID 2978 drivers/usb/gadget/function/f_fs.c memcpy(t->os_desc->ext_compat_id, &desc->CompatibleID, CompatibleID 2979 drivers/usb/gadget/function/f_fs.c ARRAY_SIZE(desc->CompatibleID) + CompatibleID 76 include/uapi/linux/usb/functionfs.h __u8 CompatibleID[8];