Cspi Class Reference

General perpose SPI I/O class. More...

#include <Cspi.h>

Public Member Functions
int	set_dev (uint16_t _busn, uint8_t _dev)
int	set_dev (const char *_sock, uint8_t _dev=0)
int	cur_bus (void)
int	cur_dev (void)
Bulk settings apply/load methods
Return values <0 Errno
int	settings_get (void)
int	settings_set (void)
Set/Get properties methods
Methods below are for class properties access only Warning Call settings_set()/settings_get() for sync with real device
void	set_bits (uint8_t _bits)
uint8_t	cur_bits (void)
void	set_speed (uint32_t _speed)
uint32_t	cur_speed (void)
void	set_delay (uint16_t _delay)
uint16_t	cur_delay (void)
void	set_mode (uint32_t _mode)
uint32_t	cur_mode (void)
I/O methods
Return values >0 number of bytes R/W 0 Not opened (?) <0 Errno
int	R (uint8_t const *_b, size_t _l)
int	W (uint8_t const *_b, size_t _l)
int	WR (uint8_t const *_w, uint8_t const *_r, uint32_t _l)

Static Public Member Functions
static int	find_bus (const char *_sock)

Detailed Description

General perpose SPI I/O class.

Copyright

Tibbo Technology Inc.

Author

Dvorkin Dmitry dvork.nosp@m.in@t.nosp@m.ibbo..nosp@m.com

Date

06.07.2016

Examples:

spi.cpp.

Member Function Documentation

int Cspi::cur_bus ( void  )

inline

Returns

Current Cspi bus number

Return values

<0	Not associated

int Cspi::cur_dev ( void  )

inline

Returns

Current device number on Cspi bus

Return values

<0	Not associated

static int Cspi::find_bus ( const char *  _sock )

static

Return values

-1

Not found

int Cspi::set_dev	(	uint16_t	_busn,
		uint8_t	_dev
	)

Return values

<0

Errno

Examples:

spi.cpp.

int Cspi::set_dev	(	const char *	_sock,
		uint8_t	_dev = 0
	)

Access by TPS socket name, ex: "-sXX" + device number (usually 0)

Return values

<0

Errno

void Cspi::set_mode ( uint32_t  _mode )

inline

Note

See https://www.kernel.org/doc/htmldocs/device-drivers/API-struct-spi-device.html for possible mode flags

Examples:

spi.cpp.

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The documentation for this class was generated from the following file:

• Cspi.h