On Tue, Mar 8, 2022 at 9:48 PM Sakari Ailus <sakari.ailus@xxxxxxxxxxxxxxx> wrote: > > Hi Arec, > > Thanks for the patch. > > On Tue, Mar 08, 2022 at 11:38:39AM +0800, Arec Kao wrote: > > Changing the gain affects the black-level through the device; > > the gain should therefore not be changed during a BLC procedure. > > If the gain changes, then the BLC routine should be re-run > > in some scenarios. > > Could you also explain what are the scenarios the BLC routine should be > re-run and how does the user space know this should be done? Could this be > done in the driver instead without involving the user space? FWIW, this turned out to be a camera module design issue (the investigation was running in parallel to the potential software fix), so this patch series isn't needed anymore. Best regards, Tomasz