--- a/circbuffer.h	Fri Apr 17 20:59:32 2015 +0800
+++ b/circbuffer.h	Sat May 02 22:47:25 2015 +0800
@@ -40,10 +40,9 @@
 
 unsigned int cbuf_getused(circbuffer * cbuf); /* how much data stored */
 unsigned int cbuf_getavail(circbuffer * cbuf); /* how much we can write */
-unsigned int cbuf_readlen(circbuffer *cbuf); /* max linear read len */
 unsigned int cbuf_writelen(circbuffer *cbuf); /* max linear write len */
 
-unsigned char* cbuf_readptr(circbuffer *cbuf, unsigned int len);
+/* returns pointers to the two portions of the circular buffer that can be read */
 void cbuf_readptrs(circbuffer *cbuf, 
 	unsigned char **p1, unsigned int *len1, 
 	unsigned char **p2, unsigned int *len2);