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#212 wiringPiI2CRawWrite and wiringPiI2CRawRead

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This commit is contained in:
mstroh76
2024-04-28 17:35:53 +02:00
parent 86f47476b2
commit e728c9dfa3
2 changed files with 17 additions and 4 deletions
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15
wiringPi/wiringPiI2C.c
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@@ -47,6 +47,7 @@
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <errno.h>
#include <string.h>
#include <fcntl.h>
@@ -153,7 +154,7 @@ int wiringPiI2CReadReg16 (int fd, int reg)
return data.word & 0xFFFF ;
}
int wiringPiI2CReadBlockData (int fd, int reg, uint8_t size, uint8_t *values)
int wiringPiI2CReadBlockData (int fd, int reg, uint8_t *values, uint8_t size)
{
union i2c_smbus_data data;
@@ -169,6 +170,11 @@ int wiringPiI2CReadBlockData (int fd, int reg, uint8_t size, uint8_t *values)
return data.block[0];
}
int wiringPiI2CRawRead (int fd, uint8_t *values, uint8_t size)
{
return(read(fd, values, size));
}
/*
* wiringPiI2CWrite:
* Simple device write
@@ -203,7 +209,7 @@ int wiringPiI2CWriteReg16 (int fd, int reg, int value)
return i2c_smbus_access (fd, I2C_SMBUS_WRITE, reg, I2C_SMBUS_WORD_DATA, &data) ;
}
int wiringPiI2CWriteBlockData (int fd, int reg, uint8_t size, const uint8_t *values)
int wiringPiI2CWriteBlockData (int fd, int reg, const uint8_t *values, uint8_t size)
{
union i2c_smbus_data data;
@@ -215,6 +221,11 @@ int wiringPiI2CWriteBlockData (int fd, int reg, uint8_t size, const uint8_t *val
return i2c_smbus_access (fd, I2C_SMBUS_WRITE, reg, I2C_SMBUS_BLOCK_DATA, &data) ;
}
int wiringPiI2CRawWrite (int fd, const uint8_t *values, uint8_t size)
{
return(write(fd, values, size));
}
/*
* wiringPiI2CSetupInterface:
* Undocumented access to set the interface explicitly - might be used

6
wiringPi/wiringPiI2C.h
View File

@@ -31,12 +31,14 @@ extern "C" {
extern int wiringPiI2CRead (int fd) ;
extern int wiringPiI2CReadReg8 (int fd, int reg) ;
extern int wiringPiI2CReadReg16 (int fd, int reg) ;
extern int wiringPiI2CReadBlockData (int fd, int reg, uint8_t size, uint8_t *values);
extern int wiringPiI2CReadBlockData (int fd, int reg, uint8_t *values, uint8_t size); //Interface 3.3
extern int wiringPiI2CRawRead (int fd, uint8_t *values, uint8_t size); //Interface 3.3
extern int wiringPiI2CWrite (int fd, int data) ;
extern int wiringPiI2CWriteReg8 (int fd, int reg, int data) ;
extern int wiringPiI2CWriteReg16 (int fd, int reg, int data) ;
extern int wiringPiI2CWriteBlockData (int fd, int reg, uint8_t size, const uint8_t *values);
extern int wiringPiI2CWriteBlockData (int fd, int reg, const uint8_t *values, uint8_t size); //Interface 3.3
extern int wiringPiI2CRawWrite (int fd, const uint8_t *values, uint8_t size); //Interface 3.3
extern int wiringPiI2CSetupInterface (const char *device, int devId) ;
extern int wiringPiI2CSetup (const int devId) ;