Diagnostics

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

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

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Detailed Description

Interpretation of devices, error codes and negotiated stream parameters.

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Typedef Documentation

typedef enum uvc_error uvc_error_t

UVC error types, based on libusb errors

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Enumeration Type Documentation

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

Definition at line 17 of file libuvc.h.

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Function Documentation

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

Definition at line 73 of file diag.c.

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)

Definition at line 143 of file diag.c.

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)

Definition at line 106 of file diag.c.

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

Definition at line 88 of file diag.c.