1 files changed, 10 insertions, 6 deletions

diff --git a/src/nio.c b/src/nio.c
index 9deae3c..d848e18 100644
--- a/src/nio.c
+++ b/src/nio.c
@@ -73,23 +73,27 @@ char nstatus(void) {
 	return OS.dvstat[DVSTAT_EXTENDED_ERROR]; // return extended status
 }
 
-char nread(char *buf, unsigned short len) {
+char nread_rxbuf(void) {
+	extern unsigned int rxbuflen;
+	extern char *rx_buf;
 	set_defaults();
 	OS.dcb.dcomnd   = 'R';    // read
 	OS.dcb.dstats   = DREAD;
-	OS.dcb.dbuf     = buf;
-	OS.dcb.dbyt     = OS.dcb.daux = len; // Set the buffer size AND daux with length
+	OS.dcb.dbuf     = rx_buf;
+	OS.dcb.dbyt     = OS.dcb.daux = rxbuflen; // Set the buffer size AND daux with length
 	siov();
 
 	return get_status();
 }
 
-char nwrite(char *buf, unsigned short len) {
+char nwrite_txbuf(void) {
+	extern unsigned int txbuflen;
+	extern char *tx_buf;
 	set_defaults();
 	OS.dcb.dcomnd   = 'W';    // write
 	OS.dcb.dstats   = DWRITE;
-	OS.dcb.dbuf     = buf;
-	OS.dcb.dbyt     = OS.dcb.daux = len;
+	OS.dcb.dbuf     = tx_buf;
+	OS.dcb.dbyt     = OS.dcb.daux = txbuflen;
 	siov();
 
 	return get_status();