diff --git a/csrc/u8x8_d_ssd1322.c b/csrc/u8x8_d_ssd1322.c
index ed679da6..afbb4cda 100644
--- a/csrc/u8x8_d_ssd1322.c
+++ b/csrc/u8x8_d_ssd1322.c
@@ -106,6 +106,8 @@ static const uint8_t u8x8_d_ssd1322_256x64_flip1_seq[] = {
 /* interpret b as a monochrome bit pattern, write value 15 for high bit and value 0 for a low bit */
 /* topbit (msb) is sent last */
 /* example: b = 0x083 will send 0xff, 0x00, 0x00, 0xf0 */
+
+/* 4 Jan 2017: I think this procedure not required any more. Delete? */
 uint8_t u8x8_write_byte_to_16gr_device(u8x8_t *u8x8, uint8_t b)
 {
   static uint8_t buf[4];
diff --git a/csrc/u8x8_d_ssd1325.c b/csrc/u8x8_d_ssd1325.c
index 3111eb12..a679288f 100644
--- a/csrc/u8x8_d_ssd1325.c
+++ b/csrc/u8x8_d_ssd1325.c
@@ -1,6 +1,6 @@
 /*
 
-  u8x8_d_ssd1325_128x64.c
+  u8x8_d_ssd1325.c
 
   Universal 8bit Graphics Library (https://github.com/olikraus/u8g2/)
 
@@ -209,7 +209,7 @@ static uint8_t u8x8_d_ssd1325_128x64_generic(u8x8_t *u8x8, uint8_t msg, uint8_t
 	{
 	  if ( ptr[0] | ptr[1] | ptr[2] | ptr[3] | ptr[4] | ptr[5] | ptr[6] | ptr[7] )
 	  {
-	    /* draw the tile of pattern is not fully clear */
+	    /* draw the tile if pattern is not zero for all bytes */
 	    u8x8_cad_SendCmd(u8x8, 0x015 );	/* set column address */
 	    u8x8_cad_SendArg(u8x8, x );	/* start */
 	    u8x8_cad_SendArg(u8x8, x+3 );	/* end */