From d8918243785c16bea16a5382e80f55cabfec1f51 Mon Sep 17 00:00:00 2001
From: Gergő J. Miklós
Date: Sun, 12 May 2019 17:57:05 +0200
Subject: refactoring

---
 src/lm75.c | 29 ++++++++++++++++++-----------
 1 file changed, 18 insertions(+), 11 deletions(-)

(limited to 'src/lm75.c')

diff --git a/src/lm75.c b/src/lm75.c
index fd6f374..784defd 100644
--- a/src/lm75.c
+++ b/src/lm75.c
@@ -7,11 +7,15 @@
 
 
 #include "lm75.h"
+#include "deftypes.h"
 
-extern int file;
+
+
+extern uint16 devicef;
 extern void bus_err(int ern);
 extern void print_help(void);
-unsigned char buf[5];
+uchar buf[32];
+
   
 
 void lm75_print_all(void)
@@ -25,16 +29,18 @@ void lm75_print_all(void)
 } 
 
  
+uchar *dev_xchg_data( uchar *buf, uint16 blen){             //# Exchange data with the device
 
-void lm75_get_data(void){
-
-	if(write(file, buf, 1) != 1){
+	if(write(devicef, buf, 1) != 1){                        //# write
         bus_err(errno);
     }
 
-    if(read(file, buf, 2) != 2) {
+    if(read(devicef, buf, 2) != 2) {                        //# read
         bus_err(errno);
-    } 
+    }
+
+  //  *buf = 0x0022;
+    return buf; 
 }
 
 void lm75_conf_set(const char *opts){
@@ -46,10 +52,11 @@ float lm75_read_temp(float offset)
 {
     signed int rawtemp = 0;
     float temp;
+  //  char *buff;
 
     buf[0] = 0x00;
     
-    lm75_get_data();
+    dev_xchg_data(buf,32);
      
     rawtemp = (buf[0]*256 + buf[1]) >> 5;  //(buf[0] << 8), and (>> 5), 11bit device is also supported
 
@@ -70,7 +77,7 @@ float lm75_read_tos(void)
                                             
     buf[0] = 0x02;                          
                                             
-    lm75_get_data();                                                         
+    dev_xchg_data(NULL,32);                                                         
                                                            
     rawtemp = buf[0]*256 + buf[1];                           
     rawtemp = (rawtemp) >> 7;           //9bit data
@@ -91,7 +98,7 @@ float lm75_read_thys(void)
                                             
     buf[0] = 0x03;                          
                                             
-    lm75_get_data();                                                      
+    dev_xchg_data(NULL,32);                                                      
                                                            
     rawtemp = buf[0]*256 + buf[1];                           
     rawtemp = (rawtemp) >> 7;           //9bit data
@@ -110,7 +117,7 @@ char lm75_read_conf(void)
     
     buf[0] = 0x01;                                                                                                                 
     
-    lm75_get_data();
+    dev_xchg_data(NULL,32);
     
     return buf[0];                                                                                                                                   
 }
-- 
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