diff --git a/libctru/include/3ds/services/gsplcd.h b/libctru/include/3ds/services/gsplcd.h
index 15f3fce..fdb219e 100644
--- a/libctru/include/3ds/services/gsplcd.h
+++ b/libctru/include/3ds/services/gsplcd.h
@@ -42,4 +42,18 @@ Result GSPLCD_GetVendors(u8 *vendors);
  * @param screen Screen to get the brightness value of.
  * @param brightness Brightness value returned.
  */
-Result GSPLCD_GetBrightness(u32 screen, u32 *brightness);
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+Result GSPLCD_GetBrightness(u32 screen, u32 *brightness);
+
+/**
+ * @brief Sets the LCD screens' brightness.
+ * @param screen Screen to set the brightness value of.
+ * @param brightness Brightness value set.
+ */
+Result GSPLCD_SetBrightness(u32 screen, u32 brightness);
+
+/**
+ * @brief Sets the LCD screens' raw brightness.
+ * @param screen Screen to set the brightness value of.
+ * @param brightness Brightness value set.
+ */
+Result GSPLCD_SetBrightnessRaw(u32 screen, u32 brightness);
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diff --git a/libctru/source/services/gsplcd.c b/libctru/source/services/gsplcd.c
index a4e4162..0183e56 100644
--- a/libctru/source/services/gsplcd.c
+++ b/libctru/source/services/gsplcd.c
@@ -81,3 +81,30 @@ Result GSPLCD_GetBrightness(u32 screen, u32 *brightness)
 	return cmdbuf[2];
 }
 
+Result GSPLCD_SetBrightness(u32 screen, u32 brightness)
+{
+	u32 *cmdbuf = getThreadCommandBuffer();
+	
+	cmdbuf[0] = IPC_MakeHeader(0x0B,2,0); // 0xB0080
+	cmdbuf[1] = screen;
+	cmdbuf[2] = brightness;
+	
+	Result ret = 0;
+	if (R_FAILED(ret = svcSendSyncRequest(gspLcdHandle))) return ret;
+
+	return cmdbuf[1];
+}
+
+Result GSPLCD_SetBrightnessRaw(u32 screen, u32 brightness)
+{
+	u32 *cmdbuf = getThreadCommandBuffer();
+	
+	cmdbuf[0] = IPC_MakeHeader(0x0A,2,0); // 0xA0080
+	cmdbuf[1] = screen;
+	cmdbuf[2] = brightness;
+	
+	Result ret = 0;
+	if (R_FAILED(ret = svcSendSyncRequest(gspLcdHandle))) return ret;
+
+	return cmdbuf[1];
+}
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