#define LSEEK_HIST_REQ_EN 0x2a ///< enable histogram request when reading histogram (safer, but may be not desirable in HDR mode) - default after opening
#define LSEEK_HIST_REQ_DIS 0x2b ///< disable histogram request when reading histogram - will read latest available relying it is available
#define LSEEK_HIST_SET_CHN 0x30 ///< ..3F Select channel to wait for (4*port+subchannel)