Laurent, Thanks for your review. On 7/14/21 7:42 PM, Laurent Pinchart wrote: > Hi Bingbu, > > Thank you for the patch. > > On Wed, Jul 14, 2021 at 07:29:40PM +0800, Bingbu Cao wrote: >> Currently, Imgu can not support output the auto-exposure statistics into >> ae_raw_buffer in 3A stats buffer, this patch document it. >> >> Signed-off-by: Bingbu Cao <bingbu.cao@xxxxxxxxx> >> --- >> drivers/staging/media/ipu3/include/uapi/intel-ipu3.h | 3 +++ >> 1 file changed, 3 insertions(+) >> >> diff --git a/drivers/staging/media/ipu3/include/uapi/intel-ipu3.h b/drivers/staging/media/ipu3/include/uapi/intel-ipu3.h >> index fa3d6ee5adf2..605113da1aed 100644 >> --- a/drivers/staging/media/ipu3/include/uapi/intel-ipu3.h >> +++ b/drivers/staging/media/ipu3/include/uapi/intel-ipu3.h >> @@ -534,6 +534,9 @@ struct ipu3_uapi_ff_status { >> * >> * @awb_raw_buffer: auto white balance meta data &ipu3_uapi_awb_raw_buffer >> * @ae_raw_buffer: auto exposure raw data &ipu3_uapi_ae_raw_buffer_aligned >> + * current Imgu does not output the auto exposure statistics >> + * to ae_raw_buffer, the user such as 3A algorithm can use the >> + * RGB table in &ipu3_uapi_awb_raw_buffer to do auto-exposure. > > Is there any other fields in the statistics buffer that is not populated > by the device, or is this the only one ? I will check again whether there is any I missed. > > Could you please also mark the corresponding parameters fields as unused > by the device ? Yes, sure. > >> * @af_raw_buffer: &ipu3_uapi_af_raw_buffer for auto focus meta data >> * @awb_fr_raw_buffer: value as specified by &ipu3_uapi_awb_fr_raw_buffer >> * @stats_4a_config: 4a statistics config as defined by &ipu3_uapi_4a_config. > -- Best regards, Bingbu Cao