diff -r -u -F *.[ch]\> -x *.[oas] -x Makefile -x .??* -x *onf* -x local.h -x *.ver -x *~ -x version.h linux.2.0.37/drivers/char/serial.c linux.2.0.37.pf/drivers/char/serial.c
--- linux.2.0.37/drivers/char/serial.c	Sun Jun 20 21:38:52 1999
+++ linux.2.0.37.pf/drivers/char/serial.c	Sun Jun 20 21:47:13 1999
@@ -482,6 +482,7 @@
 		}
 		if (tty->flip.count >= TTY_FLIPBUF_SIZE)
 			break;
+		info->rx_char_count++;
 		tty->flip.count++;
 		if (*status & (UART_LSR_BI)) {
 #ifdef SERIAL_DEBUG_INTR
@@ -514,6 +515,7 @@
 	
 	if (info->x_char) {
 		serial_outp(info, UART_TX, info->x_char);
+		info->tx_char_count++;
 		info->x_char = 0;
 		if (intr_done)
 			*intr_done = 0;
@@ -529,6 +531,7 @@
 	count = info->xmit_fifo_size;
 	do {
 		serial_out(info, UART_TX, info->xmit_buf[info->xmit_tail++]);
+		info->tx_char_count++;
 		info->xmit_tail = info->xmit_tail & (SERIAL_XMIT_SIZE-1);
 		if (--info->xmit_cnt <= 0)
 			break;
@@ -1714,6 +1717,21 @@
 }
 
 
+static int get_serial_stats(struct async_struct * info, struct serial_stats_struct *retinfo)
+{
+	struct serial_stats_struct k_stats;
+
+	cli();
+	do_gettimeofday(&k_stats.ts);
+	k_stats.count = info->count;
+	k_stats.rx = info->rx_char_count;
+	k_stats.tx = info->tx_char_count;
+	sti();
+	memcpy_tofs(retinfo,&k_stats,sizeof(*retinfo));
+
+	return 0;
+}
+
 static int get_modem_info(struct async_struct * info, unsigned int *value)
 {
 	unsigned char control, status;
@@ -2011,6 +2029,7 @@
 	if ((cmd != TIOCGSERIAL) && (cmd != TIOCSSERIAL) &&
 	    (cmd != TIOCSERCONFIG) && (cmd != TIOCSERGWILD)  &&
 	    (cmd != TIOCSERSWILD) && (cmd != TIOCSERGSTRUCT) &&
+	    (cmd != TIOCMGET) && (cmd != TIOCSERGSTATS) &&
 	    (cmd != TIOCMIWAIT) && (cmd != TIOCGICOUNT)) {
 		if (tty->flags & (1 << TTY_IO_ERROR))
 		    return -EIO;
@@ -2125,6 +2144,13 @@
 				    info, sizeof(struct async_struct));
 			return 0;
 			
+		case TIOCSERGSTATS:
+			error = verify_area(VERIFY_WRITE, (void *) arg,
+						sizeof(struct serial_stats_struct));
+			if (error)
+				return error;
+			return get_serial_stats(info,
+				       (struct serial_stats_struct *)arg);
 		case TIOCSERGETMULTI:
 			error = verify_area(VERIFY_WRITE, (void *) arg,
 				    sizeof(struct serial_multiport_struct));
@@ -2875,6 +2901,8 @@
 	info->icount.rng = info->icount.dcd = 0;
   info->next_port = 0;
   info->prev_port = 0;
+  info->rx_char_count = info->tx_char_count = 0;
+
   if (info->irq == 2)
 	info->irq = 9;
   
diff -r -u -F *.[ch]\> -x *.[oas] -x Makefile -x .??* -x *onf* -x local.h -x *.ver -x *~ -x version.h linux.2.0.37/include/linux/serial.h linux.2.0.37.pf/include/linux/serial.h
--- linux.2.0.37/include/linux/serial.h	Sun Jun 20 21:39:01 1999
+++ linux.2.0.37.pf/include/linux/serial.h	Sun Jun 20 21:43:49 1999
@@ -109,6 +109,16 @@
 	int reserved[16];
 };
 
+#include <linux/time.h>
+/*
+ * Serial statistics structure returned by TIOCSERGSTATS ioctl
+ */
+struct serial_stats_struct {
+	int count;
+	int rx;
+	int tx;
+	struct timeval ts;
+};
 
 #ifdef __KERNEL__
 /*
@@ -172,6 +182,8 @@
 	struct async_icount	icount;	/* kernel counters for the 4 input interrupts */
 	struct async_struct	*next_port; /* For the linked list */
 	struct async_struct	*prev_port;
+	unsigned long		rx_char_count;	/* Total no of chars received */
+	unsigned long		tx_char_count;	/* Total no of chars transmitted */
 };
 
 #define SERIAL_MAGIC 0x5301
diff -r -u -F *.[ch]\> -x *.[oas] -x Makefile -x .??* -x *onf* -x *floppy* -x local.h -x *.ver -x *~ -x version.h linux.2.0.36/include/asm/ioctls.h linux.2.0.36.pf/include/asm/ioctls.h
--- linux.2.0.36/include/asm-i386/ioctls.h	Tue Apr  9 07:29:28 1996
+++ linux.2.0.36.pf/include/asm-i386/ioctls.h	Fri Mar  6 22:00:24 1998
@@ -59,6 +59,7 @@
 
 #define TIOCMIWAIT	0x545C	/* wait for a change on serial input line(s) */
 #define TIOCGICOUNT	0x545D	/* read serial port inline interrupt counts */
+#define TIOCSERGSTATS   0x54f3 /* Get interrupt statistics */
 
 /* Used for packet mode */
 #define TIOCPKT_DATA		 0