From e728c9dfa3586b7c49aaf62740f442e2da9e6130 Mon Sep 17 00:00:00 2001
From: mstroh76 <m.stroh76@gmail.com>
Date: Sun, 28 Apr 2024 17:35:53 +0200
Subject: [PATCH] #212 wiringPiI2CRawWrite and wiringPiI2CRawRead

---
 wiringPi/wiringPiI2C.c | 15 +++++++++++++--
 wiringPi/wiringPiI2C.h |  6 ++++--
 2 files changed, 17 insertions(+), 4 deletions(-)

diff --git a/wiringPi/wiringPiI2C.c b/wiringPi/wiringPiI2C.c
index 51f92dd..0bd166a 100644
--- a/wiringPi/wiringPiI2C.c
+++ b/wiringPi/wiringPiI2C.c
@@ -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
diff --git a/wiringPi/wiringPiI2C.h b/wiringPi/wiringPiI2C.h
index 5734bdb..d9660b9 100644
--- a/wiringPi/wiringPiI2C.h
+++ b/wiringPi/wiringPiI2C.h
@@ -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) ;