VIVOTEK
User's Manual - 167
b. if "rbgain" is supported, "rgain" and
"bgain" are updated to the current values
which is got from white balance module. Then,
act as rbgain mode
* Only available when
"capability_image_c<n>_wbmode" !="-"
rgain
0~100
4/4
Manual set rgain value of gain control setting.
0: Weak <-> 100: Strong
* Only available when "rbgain" is listed in
"capability_image_c<n>_wbmode".
* Only valid when
"videoin_c<n>_whitebalance" != auto
* Normalized range.
bgain
0~100
4/4
Manual set bgain value of gain control setting.
0: Weak <-> 100: Strong
* Only available when "rbgain" is listed in
"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.
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.
piris_mode
manual, indoor,
1/4
Control P-Iris mode.