Diagnostics

Interpretation of devices, error codes and negotiated stream parameters. More...

Typedefs
typedef enum uvc_error	uvc_error_t
	UVC error types, based on libusb errors.

Enumerations
enum	uvc_error {   UVC_SUCCESS = 0 , UVC_ERROR_IO = -1 , UVC_ERROR_INVALID_PARAM = -2 , UVC_ERROR_ACCESS = -3 ,   UVC_ERROR_NO_DEVICE = -4 , UVC_ERROR_NOT_FOUND = -5 , UVC_ERROR_BUSY = -6 , UVC_ERROR_TIMEOUT = -7 ,   UVC_ERROR_OVERFLOW = -8 , UVC_ERROR_PIPE = -9 , UVC_ERROR_INTERRUPTED = -10 , UVC_ERROR_NO_MEM = -11 ,   UVC_ERROR_NOT_SUPPORTED = -12 , UVC_ERROR_INVALID_DEVICE = -50 , UVC_ERROR_INVALID_MODE = -51 , UVC_ERROR_CALLBACK_EXISTS = -52 ,   UVC_ERROR_OTHER = -99 }
	UVC error types, based on libusb errors. More...

Functions
void	uvc_perror (uvc_error_t err, const char *msg)
	Print a message explaining an error in the UVC driver. More...
const char *	uvc_strerror (uvc_error_t err)
	Return a string explaining an error in the UVC driver. More...
void	uvc_print_stream_ctrl (uvc_stream_ctrl_t *ctrl, FILE *stream)
	Print the values in a stream control block. More...
void	uvc_print_diag (uvc_device_handle_t *devh, FILE *stream)
	Print camera capabilities and configuration. More...
void	uvc_print_frameformats (uvc_device_handle_t *devh)
	Print all possible frame configuration. More...

Detailed Description

Interpretation of devices, error codes and negotiated stream parameters.

Enumeration Type Documentation

uvc_error

enum uvc_error

UVC error types, based on libusb errors.

Enumerator
UVC_SUCCESS	Success (no error)
UVC_ERROR_IO	Input/output error.
UVC_ERROR_INVALID_PARAM	Invalid parameter.
UVC_ERROR_ACCESS	Access denied.
UVC_ERROR_NO_DEVICE	No such device.
UVC_ERROR_NOT_FOUND	Entity not found.
UVC_ERROR_BUSY	Resource busy.
UVC_ERROR_TIMEOUT	Operation timed out.
UVC_ERROR_OVERFLOW	Overflow.
UVC_ERROR_PIPE	Pipe error.
UVC_ERROR_INTERRUPTED	System call interrupted.
UVC_ERROR_NO_MEM	Insufficient memory.
UVC_ERROR_NOT_SUPPORTED	Operation not supported.
UVC_ERROR_INVALID_DEVICE	Device is not UVC-compliant.
UVC_ERROR_INVALID_MODE	Mode not supported.
UVC_ERROR_CALLBACK_EXISTS	Resource has a callback (can't use polling and async)
UVC_ERROR_OTHER	Undefined error.

Function Documentation

uvc_perror()

void uvc_perror	(	uvc_error_t	err,
		const char *	msg
	)

Print a message explaining an error in the UVC driver.

Parameters

err	UVC error code
msg	Optional custom message, prepended to output

uvc_strerror()

const char* uvc_strerror

(

uvc_error_t

err

)

Return a string explaining an error in the UVC driver.

Parameters

err	UVC error code

Returns

error message

uvc_print_stream_ctrl()

void uvc_print_stream_ctrl	(	uvc_stream_ctrl_t *	ctrl,
		FILE *	stream
	)

Print the values in a stream control block.

Parameters

devh	UVC device
stream	Output stream (stderr if NULL)

uvc_print_diag()

void uvc_print_diag	(	uvc_device_handle_t *	devh,
		FILE *	stream
	)

Print camera capabilities and configuration.

Parameters

devh	UVC device
stream	Output stream (stderr if NULL)

uvc_print_frameformats()

void uvc_print_frameformats

(

uvc_device_handle_t *

devh

)

Print all possible frame configuration.

Parameters

devh	UVC device
stream	Output stream (stderr if NULL)