libexplain/buffer/v4l2_buf_type.h File Reference

#include <libexplain/string_buffer.h>

Go to the source code of this file.

Enumerations
enum	explain_v4l2_buf_type_check_t { explain_v4l2_buf_type_check_no_idea, explain_v4l2_buf_type_check_notsup, explain_v4l2_buf_type_check_nosuch, explain_v4l2_buf_type_check_ok }
Functions
void	explain_buffer_v4l2_buf_type (explain_string_buffer_t *sb, int value)
void	explain_buffer_v4l2_buf_type_ptr (explain_string_buffer_t *sb, const int *value)
enum explain_v4l2_buf_type_check_t	explain_v4l2_buf_type_check (int fildes, int data)
enum explain_v4l2_buf_type_check_t	explain_v4l2_buf_type_ptr_check (int fildes, const int *data)

---

Enumeration Type Documentation

enum explain_v4l2_buf_type_check_t

Enumerator:

explain_v4l2_buf_type_check_no_idea
explain_v4l2_buf_type_check_notsup
explain_v4l2_buf_type_check_nosuch
explain_v4l2_buf_type_check_ok

Definition at line 47 of file v4l2_buf_type.h.

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Function Documentation

void explain_buffer_v4l2_buf_type	(	explain_string_buffer_t *	sb,
		int	value
	)

The explain_buffer_v4l2_buf_type function may be used to print a representation of a v4l2_buf_type structure.

Parameters:

sb	The string buffer to print into.
value	The v4l2_buf_type value to be printed.

void explain_buffer_v4l2_buf_type_ptr	(	explain_string_buffer_t *	sb,
		const int *	value
	)

The explain_buffer_v4l2_buf_type function may be used to print a representation of a v4l2_buf_type structure.

Parameters:

sb	The string buffer to print into.
value	The v4l2_buf_type value to be printed.

enum explain_v4l2_buf_type_check_t explain_v4l2_buf_type_check	(	int	fildes,
		int	data
	)

The explain_v4l2_buf_type_check function is used to check the validity of a v4l2 buffer type.

Parameters:

fildes	The associated file descriptor.
data	The alleged v4l2 buffer type to be checked.

Returns:

no_idea if the file descriptor is unhelpful, no if the data is not a valid buffer type, and yes of it is valif and supported by the device (fildes).

enum explain_v4l2_buf_type_check_t explain_v4l2_buf_type_ptr_check	(	int	fildes,
		const int *	data
	)

The explain_v4l2_buf_type_ptr_check function is used to check the validity of a v4l2 buffer type.

Parameters:

fildes	The associated file descriptor.
data	The alleged v4l2 buffer type to be checked.

Returns:

no_idea if the file descriptor is unhelpful or the pointer is efault, no if the data is not a valid buffer type, and yes of it is valif and supported by the device (fildes).