V4L2 controls vs. GeniCam features
57
Alvium CSI-2 Cameras User Guide V1.1.0
Image control > Basic control
Image control > Image size
Functionality
V4L2 controls (= Control IDs) |
Data type: (Options) | [Unit] |
Control type
SFNC features,
non-SFNC
(Selector Feature)/Feature |
Data type: (Options) | [Unit]
Remarks
Black level /
Brightness
V4L2_CID_BRIGHTNESS |
Integer |
User control
BlackLevel |
Float
n.a.
Exposure time
V4L2_CID_EXPOSURE |
Integer | [ns]|
User control
ExposureTime |
Float | [µs]
Disables
V4L2_EXPOSURE_AUTO
and
V4L2_CID_EXPOSURE
_ABSOLUTE
Exposure time
V4L2_CID_EXPOSURE_ABSOLUTE |
Integer | [100 µs] |
Extended control
Universal Video Class (UVC):
Exposure Time (Absolute) Control
|
Integer | [100 µs]
Disables
V4L2_EXPOSURE_AUTO
and
V4L2_CID_EXPOSURE
Gain
V4L2_CID_GAIN |
Integer |
User control
Gain |
Float
n.a.
Gamma
V4L2_CID_GAMMA |
Integer |
User control
Gamma |
Float
n.a.
White balance
V4L2_CID_DO_WHITE_BALANCE |
Button (= Command) |
User control
BalanceWhiteAuto |
Enumeration: Once
n.a.
Balance ratio: blue
V4L2_CID_BLUE_BALANCE |
Integer |
User control
BalanceRatioSelector |
Enumeration: Blue
BalanceRatio |
Float
Alternative to White
balance
Balance ratio: red
V4L2_CID_RED_BALANCE
Integer
User control
BalanceRatioSelector |
Enumeration: Red
BalanceRatio |
Float
Alternative to White
balance
Table 26: Comparison | Image control > Basic control
Functionality
V4L2 controls (= Control IDs) |
Data type: (Options) | [Unit] |
Control type
SFNC features,
non-SFNC
(Selector Feature)/Feature |
Data type: (Options) | [Unit]
Remarks
Region of interest /
Cropping
Table 27: Comparison | Image control > Image size
