b_format_index   1583 drivers/usb/gadget/function/uvc_configfs.c UVCG_UNCOMPRESSED_ATTR_RO(b_format_index, bFormatIndex, 8);
b_format_index   1776 drivers/usb/gadget/function/uvc_configfs.c UVCG_MJPEG_ATTR_RO(b_format_index, bFormatIndex, 8);