From d41e803bdec19a99809bc37bda803a0968c09a90 Mon Sep 17 00:00:00 2001
From: jesse <mr.bossman075@gmail.com>
Date: Thu, 17 Dec 2020 19:49:35 -0500
Subject: [PATCH] fixed errors and fromating

---
 include/tlc59711.h | 2 +-
 src/main.cpp       | 5 ++++-
 src/spi.c          | 2 +-
 src/tlc59711.c     | 9 ++++++---
 4 files changed, 12 insertions(+), 6 deletions(-)

diff --git a/include/tlc59711.h b/include/tlc59711.h
index 817cef7..14082af 100644
--- a/include/tlc59711.h
+++ b/include/tlc59711.h
@@ -2,6 +2,6 @@
 #ifndef TLC59711_H
 #define TLC59711_H
 #include "spi.h"
-extern void tlc59711_send(const uint16_t data[12]);
+extern int tlc59711_send(const uint16_t data[12]);
 extern int tlc59711_init(const char *device);
 #endif
\ No newline at end of file
diff --git a/src/main.cpp b/src/main.cpp
index 9f00f48..d302af4 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -7,7 +7,10 @@ int main(int argc, char *argv[])
     uint16_t test[12] = {0};
     tlc59711_init("/dev/spidev1.1");
     while(1){
-        tlc59711_send(test);
+        int ret;
+        if((ret = tlc59711_send(test)) < 0 ){
+            exit(ret);
+        }
     }
 	return 0;
 }
diff --git a/src/spi.c b/src/spi.c
index cb9a7ed..2025fb9 100644
--- a/src/spi.c
+++ b/src/spi.c
@@ -35,7 +35,7 @@ extern int transfer(uint8_t tx[], uint8_t rx[],unsigned int size)
 
 	ret = ioctl(fd, SPI_IOC_MESSAGE(1), &tr);
 	if (ret < 1)
-		printf("can't send spi message");
+		printf("can't send spi message\n");
 	return ret;	
 }
 extern int spi_init(spiMode* modes,const char *device )
diff --git a/src/tlc59711.c b/src/tlc59711.c
index fda856b..3cf7711 100644
--- a/src/tlc59711.c
+++ b/src/tlc59711.c
@@ -16,7 +16,7 @@ extern int tlc59711_init(const char *device)
     int fd = spi_init(&modes, device);
     return fd;
 } 
-extern void tlc59711_send(const uint16_t data[12])
+extern int tlc59711_send(const uint16_t data[12])
 {
     uint8_t rx[24]; // throw away
    	uint8_t tx[24];
@@ -25,7 +25,10 @@ extern void tlc59711_send(const uint16_t data[12])
     tx[1] = command >> 16;
     tx[2] = command >> 8;
     tx[3] = command;
-    transfer(tx,rx,4);
+    int ret; 
+    if((ret = transfer(tx,rx,4)) < 0){
+        return ret;
+    }
 
 
     // 12 channels per TLC59711
@@ -36,7 +39,7 @@ extern void tlc59711_send(const uint16_t data[12])
         //spiSend(data[c]);
         tx[c << 1] = 0xFF;
     }
-    transfer(tx,rx,24);
+    return transfer(tx,rx,24);
 }
 
 
-- 
2.42.0