--- serial.c.orig	Fri Nov 13 14:09:10 1998
+++ serial.c	Wed Jan 20 03:31:04 1999
@@ -1,3 +1,4 @@
+/* 20/01/1999 - set the speed to 9600bps --  Jacek <sq5bpf@acid.ch.pw.edu.pl> */
 #include <linuxmt/types.h>
 #include <linuxmt/wait.h>
 #include <linuxmt/chqueue.h>
@@ -28,6 +29,8 @@
 
 #define CONSOLE_PORT 0
 
+int intok=0;
+
 static struct serial_info ports[4]=
 {
 	{ 0x3f8,4,0,0 },
@@ -62,17 +65,35 @@
 struct inode *inode;
 struct file *file;
 {
+int ile=16;
+
 	int rs_minor = MINOR(inode->i_rdev) - RS_MINOR_OFFSET;
 
 	printd_rs("RS_OPEN called\n");
 	if (!(ports[rs_minor].flags & SERF_EXIST))
 		return -ENODEV;
+
+intok=1; /* Let there be interrupts  --sq5bpf */ 
+
 	if (!rs_in_use[rs_minor]) {
 		rs_in_use[rs_minor] = 1;
 		inb_p(ports[rs_minor].io + UART_LSR);
 		do {
 			inb_p(ports[rs_minor].io + UART_RX);
-		} while (inb_p(ports[rs_minor].io + UART_LSR) & UART_LSR_DR);
+ile--;
+		} while ((ile!=0)&&(inb_p(ports[rs_minor].io + UART_LSR) & UART_LSR_DR));
+
+/* set speed to 9600bps */
+/* this should be probably in rs_init() */
+/* DLAB=1 */
+outb_p(inb_p(ports[rs_minor].io+UART_LCR)|0x80,ports[rs_minor].io+UART_LCR);
+outb_p(0,ports[rs_minor].io+UART_DLM);
+/* 115200/9600=12, change to 48 if you want 2400bps */ 
+outb_p(12,ports[rs_minor].io+UART_DLL);
+/* DLAB=0 */
+outb_p(inb_p(ports[rs_minor].io+UART_LCR)&0x7f,ports[rs_minor].io+UART_LCR);
+
+
 		inb_p(ports[rs_minor].io + UART_IIR);
 		inb_p(ports[rs_minor].io + UART_MSR);
 /*		outb_p(UART_LCR_WLEN8 | UART_LCR_DLAB, ports[rs_minor].io + UART_LCR);
@@ -81,6 +102,7 @@
 		outb_p(UART_LCR_WLEN8, ports[rs_minor].io + UART_LCR);
 		outb_p(UART_IER_RDI, ports[rs_minor].io + UART_IER);
 		outb_p(UART_MCR_DTR | UART_MCR_RTS | UART_MCR_OUT2, ports[rs_minor].io + UART_MCR);
+
 /*		inb_p(ports[rs_minor].io + UART_LSR);
 		inb_p(ports[rs_minor].io + UART_RX);
 		inb_p(ports[rs_minor].io + UART_IIR);
@@ -122,8 +144,9 @@
 		if (ch == '\r')
 			ch = '\n';
 		chq_addch(&sp->tty->inq, ch);
-	} while (inb_p(sp->io + UART_LSR) & UART_LSR_DR);
+	} while (((inb_p(sp->io + UART_LSR) & UART_LSR_DR)>0)&intok);
 }
+
 /*
 void transmit_chars(sp)
 struct serial_info *sp;
@@ -143,7 +166,6 @@
 	register struct serial_info * sp;
 	unsigned char ch;
 	printd_rs1("Serial interrupt %d recieved.\n", irq);
-
 	sp = &ports[irq_port[irq -2]];
 	do {
 		status = inb_p(sp->io + UART_LSR);
@@ -152,7 +174,7 @@
 		}
 /*		if (status & UART_LSR_THRE)
 			transmit_chars(sp); */
-	} while (!(inb_p(sp->io + UART_IIR) & UART_IIR_NO_INT));
+	} while (intok&(!(inb_p(sp->io + UART_IIR) & UART_IIR_NO_INT)));
 	
 }
 
..
.