Ci2c Class Reference

Base Virtual I2C I/O class. More...

#include <Ci2c.h>

Inheritance diagram for Ci2c:

Public Member Functions
int	set_slave (uint16_t _addr)
	Set slave device to work with. No need to call it obviously. Call it only for test if device exists. BUT nowtime result is not guaranteed if it can return an error "no such device" due to SMBUS i2c driver realization. More...
Bus methods
Return values 1 OK <0 Errno
int	set_bus (uint16_t _busn)
int	set_bus (const char *_buss, i2cmap_t *_map=NULL)
int	cur_bus (void)
Virtual I/O methods
It may take too long time to read/write i2c device so make this functions non-blockable Return values >0 Number of bytes R/W 0 Not opened (?) <0 Errno
virtual int	R1b (uint16_t _addr, uint8_t _reg, uint8_t &_b)=0
virtual int	W1b (uint16_t _addr, uint8_t _reg, uint8_t _b)=0
virtual int	R2b (uint16_t _addr, uint8_t _reg, uint16_t &_b)=0
virtual int	W2b (uint16_t _addr, uint8_t _reg, uint16_t _b)=0
virtual int	Rbb (uint16_t _addr, uint8_t _reg, uint8_t *_b, uint8_t _blen)=0
virtual int	Wbb (uint16_t _addr, uint8_t _reg, uint8_t *_b, uint8_t _blen)=0
virtual int	Rqb (uint16_t _addr, uint8_t _reg, uint8_t *_b, uint8_t _blen)=0
virtual int	Wqb (uint16_t _addr, uint8_t _reg, uint8_t *_b, uint8_t _blen)=0

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

Detailed Description

Base Virtual I2C I/O class.

Virtual I2C I/O functions have to be declared in child class

Member Function Documentation

static int Ci2c::find_bus ( const char *  _sock )

static

Return values

-1

Not found

int Ci2c::set_slave

(

uint16_t

_addr

)

Set slave device to work with. No need to call it obviously. Call it only for test if device exists. BUT nowtime result is not guaranteed if it can return an error "no such device" due to SMBUS i2c driver realization.

Better to use R* or W* functions to probe the devices on a bus, for example R1b( _addr, 0x00, b);

Return values

1	OK
0	Not opened
<0	Errno

---

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

• Ci2c.h