User manual
VIVOTEK
User's Manual - 185  
"capability_image_c<n>_wbmode". 
* Only valid when 
"videoin_c<n>_whitebalance" != auto 
* Normalized range. 
maxgain  0~100  4/4  Maximum gain value. 
0: Low <-> 100: High 
* Only available when 
"capability_image_c<n>_agc_maxgain" != "-"
* Only valid when "piris_mode"=manual    or 
"irismode"=fixed 
* Normalized range. 
* Only available when 
"capability_image_c<n>_exposure_rangetyp
e" is "twovalues". 
mingain  0~100  4/4  Minimum gain value. 
0: Low <-> 100: High 
* Only available when 
"capability_image_c<n>_agc_mingain" != "-"
* Only valid when "piris_mode"=manual    or 
"irismode"=fixed 
* Normalized range. 
* Only available when 
"capability_image_c<n>_exposure_rangetyp
e" is "twovalues". 
gainvalue  0~100  4/4  Gain value. 
0: Low <-> 100: High 
* Only available when 
"capability_image_c<n>_agc_maxgain" != "-" 
and
"capability_image_c<n>_exposure_rangetyp
e" is "onevalue". 
* Normalized range. 
* We support this parameter when the version 
number (httpversion) is equal or greater than 
0302a. 
piris_mode  manual, indoor,  1/4  Control P-Iris mode. 










