diff --git a/[refs] b/[refs]
index 8215da62b8c8..d5e246f1370f 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 50de36f7af3b1d791c402478210790c582126fe5
+refs/heads/master: f1632df36b9467b75b7abfd2799aef67ec74a60a
diff --git a/trunk/drivers/usb/serial/option.c b/trunk/drivers/usb/serial/option.c
index 4c9497d05d13..5ed183477aaf 100644
--- a/trunk/drivers/usb/serial/option.c
+++ b/trunk/drivers/usb/serial/option.c
@@ -522,9 +522,9 @@ static int debug;
 /* per port private data */
 
 #define N_IN_URB 4
-#define N_OUT_URB 1
+#define N_OUT_URB 4
 #define IN_BUFLEN 4096
-#define OUT_BUFLEN 128
+#define OUT_BUFLEN 4096
 
 struct option_port_private {
 	/* Input endpoints and buffer for this port */