Fix serial port issues on Linux and add proper Direct mode to NZXT Hue+

Controllers/NZXTHuePlusController/NZXTHuePlusController.cpp

@@ -169,7 +169,7 @@ void HuePlusController::SetChannelLEDs
     /*-----------------------------------------------------*\
     | Send color data                                       |
     \*-----------------------------------------------------*/
-    SendPacket(channel, HUE_PLUS_MODE_FIXED, false, 0, 0, num_colors, &color_data[0]);
+    SendPacket(channel, HUE_PLUS_MODE_DIRECT, false, 0, 0, num_colors, &color_data[0]);
 }
 
 /*-------------------------------------------------------------------------------------------------*\
@@ -187,7 +187,7 @@ void HuePlusController::SendPacket
     unsigned char*  color_data
     )
 {
-    unsigned char serial_buf[125];
+    unsigned char serial_buf[HUE_PLUS_PACKET_SIZE];
 
     /*-----------------------------------------------------*\
     | Zero out buffer                                       |
@@ -233,5 +233,5 @@ void HuePlusController::SendPacket
     /*-----------------------------------------------------*\
     | Delay to allow Hue+ device to ready for next packet   |
     \*-----------------------------------------------------*/
-    std::this_thread::sleep_for(20ms);
+    std::this_thread::sleep_for(5ms);
 }

Controllers/NZXTHuePlusController/NZXTHuePlusController.h

@@ -62,6 +62,7 @@ enum
     HUE_PLUS_MODE_CANDLELIGHT   = 0x09, /* Candlelight mode             */
     HUE_PLUS_MODE_WINGS         = 0x0C, /* Wings mode                   */
     HUE_PLUS_MODE_WAVE          = 0x0D, /* Wave mode                    */
+    HUE_PLUS_MODE_DIRECT        = 0x0E, /* Direct mode                  */
 };
 
 class HuePlusController

Controllers/NZXTHuePlusController/RGBController_NZXTHuePlus.cpp

@@ -21,7 +21,7 @@ RGBController_HuePlus::RGBController_HuePlus(HuePlusController* hueplus_ptr)
     
     mode Direct;
     Direct.name       = "Direct";
-    Direct.value      = HUE_PLUS_MODE_FIXED;
+    Direct.value      = HUE_PLUS_MODE_DIRECT;
     Direct.flags      = MODE_FLAG_HAS_PER_LED_COLOR;
     Direct.color_mode = MODE_COLORS_PER_LED;
     modes.push_back(Direct);

serial_port/serial_port.cpp

@@ -202,7 +202,9 @@ int serial_port::serial_write(char * buffer, int length)
 #ifdef __linux__
 
     int byteswritten;
+    tcdrain(file_descriptor);
     byteswritten = write(file_descriptor, buffer, length);
+    tcdrain(file_descriptor);
     return byteswritten;
 
 #endif  /* __linux__ */