Request Wrappers

Functions
int	uvccRWScanningMode (uvccCam *cam, uint8_t request, uint8_t *value)
int	uvccRWAutoExposureMode (uvccCam *cam, uint8_t request, int8_t *value)
int	uvccRWAutoExposurePrio (uvccCam *cam, uint8_t request, uint8_t *value)
int	uvccRWExposure (uvccCam *cam, uint8_t request, uint32_t *value)
int	uvccRWAutoFocus (uvccCam *cam, uint8_t request, uint8_t *value)
int	uvccRWFocus (uvccCam *cam, uint8_t request, uint16_t *value)
int	uvccRWIris (uvccCam *cam, uint8_t request, int16_t *value)
int	uvccRWBacklightCompensation (uvccCam *cam, uint8_t request, uint16_t *value)
int	uvccRWBrightness (uvccCam *cam, uint8_t request, int16_t *value)
int	uvccRWContrast (uvccCam *cam, uint8_t request, uint16_t *value)
int	uvccRWGain (uvccCam *cam, uint8_t request, uint16_t *value)
int	uvccRWPowerLineFrequency (uvccCam *cam, uint8_t request, uint8_t *value)
int	uvccRWAutoHue (uvccCam *cam, uint8_t request, uint8_t *value)
int	uvccRWHue (uvccCam *cam, uint8_t request, int16_t *value)
int	uvccRWSaturation (uvccCam *cam, uint8_t request, uint16_t *value)
int	uvccRWSharpness (uvccCam *cam, uint8_t request, uint16_t *value)
int	uvccRWGamma (uvccCam *cam, uint8_t request, uint16_t *value)
int	uvccRWAutoWhiteBalanceTemp (uvccCam *cam, uint8_t request, uint8_t *value)
int	uvccRWWhiteBalanceTemp (uvccCam *cam, uint8_t request, uint16_t *value)
int	uvccRWAutoWhiteBalanceComponent (uvccCam *cam, uint8_t request, uint8_t *value)
int	uvccRWWhiteBalanceComponent (uvccCam *cam, uint8_t request, uint16_t *blue, uint16_t *red)

Detailed Description

Wrapper functions to easily send requests to a cam.

Function Documentation

int uvccRWAutoExposureMode	(	uvccCam *	cam,
		uint8_t	request,
		int8_t *	value
	)

Params and return as uvccRWAutoFocus(), UVC_GET_CUR result can be found in Exposure mode values.

int uvccRWAutoExposurePrio	(	uvccCam *	cam,
		uint8_t	request,
		uint8_t *	value
	)

Params and return as uvccRWAutoFocus(), UVC_GET_CUR result can be found in Exposure priority values.

int uvccRWAutoFocus	(	uvccCam *	cam,
		uint8_t	request,
		uint8_t *	value
	)

uvccRequest wrapper function for auto focus, UVC_GET_CUR result can be found in Auto values.

Parameters

cam
request	uvc request, valid values are those in UVC bRequest values
value	value to set or buf to receive value in

Returns

0 on success != 0 on fail

int uvccRWAutoHue	(	uvccCam *	cam,
		uint8_t	request,
		uint8_t *	value
	)

Params and return as uvccRWAutoFocus(), UVC_GET_CUR result can be found in Auto values.

int uvccRWAutoWhiteBalanceComponent	(	uvccCam *	cam,
		uint8_t	request,
		uint8_t *	value
	)

Params and return as uvccRWAutoFocus(), UVC_GET_CUR result can be found in Auto values.

int uvccRWAutoWhiteBalanceTemp	(	uvccCam *	cam,
		uint8_t	request,
		uint8_t *	value
	)

Params and return as uvccRWAutoFocus(), UVC_GET_CUR result can be found in Auto values.

int uvccRWBacklightCompensation	(	uvccCam *	cam,
		uint8_t	request,
		uint16_t *	value
	)

Params and return as uvccRWAutoFocus().

int uvccRWBrightness	(	uvccCam *	cam,
		uint8_t	request,
		int16_t *	value
	)

Params and return as uvccRWAutoFocus().

int uvccRWContrast	(	uvccCam *	cam,
		uint8_t	request,
		uint16_t *	value
	)

Params and return as uvccRWAutoFocus().

int uvccRWExposure	(	uvccCam *	cam,
		uint8_t	request,
		uint32_t *	value
	)

Params and return as uvccRWAutoFocus().

int uvccRWFocus	(	uvccCam *	cam,
		uint8_t	request,
		uint16_t *	value
	)

Params and return as uvccRWAutoFocus().

int uvccRWGain	(	uvccCam *	cam,
		uint8_t	request,
		uint16_t *	value
	)

Params and return as uvccRWAutoFocus().

int uvccRWGamma	(	uvccCam *	cam,
		uint8_t	request,
		uint16_t *	value
	)

Params and return as uvccRWAutoFocus().

int uvccRWHue	(	uvccCam *	cam,
		uint8_t	request,
		int16_t *	value
	)

Params and return as uvccRWAutoFocus().

int uvccRWIris	(	uvccCam *	cam,
		uint8_t	request,
		int16_t *	value
	)

Params and return as uvccRWAutoFocus().

int uvccRWPowerLineFrequency	(	uvccCam *	cam,
		uint8_t	request,
		uint8_t *	value
	)

Params and return as uvccRWAutoFocus(), UVC_GET_CUR result can be found in Power line frequency values.

int uvccRWSaturation	(	uvccCam *	cam,
		uint8_t	request,
		uint16_t *	value
	)

Params and return as uvccRWAutoFocus().

int uvccRWScanningMode	(	uvccCam *	cam,
		uint8_t	request,
		uint8_t *	value
	)

Params and return as uvccRWAutoFocus(), UVC_GET_CUR result can be found in Scanning mode values.

int uvccRWSharpness	(	uvccCam *	cam,
		uint8_t	request,
		uint16_t *	value
	)

Params and return as uvccRWAutoFocus().

int uvccRWWhiteBalanceComponent	(	uvccCam *	cam,
		uint8_t	request,
		uint16_t *	blue,
		uint16_t *	red
	)

uvccRequest wrapper function for white balance component, see table 4-39 in UVC spec, p.98 (111) for further info.

Parameters

cam
request	uvc request, valid values are those in UVC bRequest values
blue	blue component
red	red component

Returns

0 on success != 0 on fail

int uvccRWWhiteBalanceTemp	(	uvccCam *	cam,
		uint8_t	request,
		uint16_t *	value
	)

Params and return as uvccRWAutoFocus().