diff --git a/Makefile b/Makefile
index f8d8df5..96d0156 100644
--- a/Makefile
+++ b/Makefile
@@ -1,5 +1,5 @@
 rtd_prog: main.cpp crc.o gff.o i2c.o
-	${CXX} ${CPPFLAGS} ${CXXFLAGS} ${LDFLAGS} crc.o gff.o i2c.o main.cpp -o rtd_prog
+	${CXX} ${CPPFLAGS} ${CXXFLAGS} ${LDFLAGS} crc.o gff.o i2c.o main.cpp -o rtd_prog -li2c
 
 crc.o: crc.cpp crc.h
 	${CXX} ${CPPFLAGS} ${CXXFLAGS} -c -o crc.o crc.cpp
diff --git a/i2clinux.cpp b/i2clinux.cpp
index 960039b..272e328 100644
--- a/i2clinux.cpp
+++ b/i2clinux.cpp
@@ -6,6 +6,7 @@
 extern "C"
 {
   #include <linux/i2c-dev.h>
+  #include <i2c/smbus.h>
 }
 
 static int file;
diff --git a/main.cpp b/main.cpp
index 5d2bada..c942c47 100644
--- a/main.cpp
+++ b/main.cpp
@@ -51,6 +51,8 @@ static const FlashDesc FlashDevices[] = {
     {"SST25VF512" , 0xBF4800,       64,       256, 32},
     {"SST25VF032" , 0xBF4A00, 4 * 1024,       256, 32},
     {"MX25L4005"  , 0xC22013,     1024,       256, 64},
+    {"T25S40"     , 0x1C3113,      512,       256, 32},
+    {"T25S40"     , 0x5E6013,      512,       256, 32},
     {NULL , 0, 0, 0, 0}
 };
 
@@ -173,6 +175,7 @@ void SetupChipCommands(uint32_t jedec_id) {
   uint8_t manufacturer_id = GetManufacturerId(jedec_id);
   switch (manufacturer_id) {
   case 0xEF:
+  case 0x5e:
   case 0xC2:
     // These are the codes for Winbond
     WriteReg(0x62, 0x6);  // Flash Write enable op code