UVCG_FRAMEBASED_ATTR_RO
UVCG_FRAMEBASED_ATTR_RO(b_format_index, bFormatIndex, 8);
UVCG_FRAMEBASED_ATTR_RO(b_bits_per_pixel, bBitsPerPixel, 8);
UVCG_FRAMEBASED_ATTR_RO(b_aspect_ratio_x, bAspectRatioX, 8);
UVCG_FRAMEBASED_ATTR_RO(b_aspect_ratio_y, bAspectRatioY, 8);
UVCG_FRAMEBASED_ATTR_RO(bm_interface_flags, bmInterfaceFlags, 8);