netdev - [PATCH] hso: fix for the 'invalid frame length' messages

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Message-ID: <20090330094459.GC9849@raptor>
Date:	Mon, 30 Mar 2009 11:44:59 +0200
From:	Jan Dumon <j.dumon@...ion.com>
To:	linux-usb@...r.kernel.org, netdev@...r.kernel.org
Subject: [PATCH] hso: fix for the 'invalid frame length' messages

From: Jan Dumon <j.dumon@...ion.com>

Some devices cannot send very short usb transfers. To get around this the
firmware adds a known pattern and flags the driver that it should check for
this pattern on short transfers. This flag was not taken into account by
the driver.

Signed-off-by: Jan Dumon <j.dumon@...ion.com>
---
diff --git a/drivers/net/usb/hso.c b/drivers/net/usb/hso.c
index a9320db..67f05ad 100644
--- a/drivers/net/usb/hso.c
+++ b/drivers/net/usb/hso.c
@@ -2532,14 +2532,15 @@ static void hso_create_rfkill(struct hso_device *hso_dev,
 }
 
 /* Creates our network device */
-static struct hso_device *hso_create_net_device(struct usb_interface *interface)
+static struct hso_device *hso_create_net_device(struct usb_interface *interface,
+						int port_spec)
 {
 	int result, i;
 	struct net_device *net;
 	struct hso_net *hso_net;
 	struct hso_device *hso_dev;
 
-	hso_dev = hso_create_device(interface, HSO_INTF_MUX | HSO_PORT_NETWORK);
+	hso_dev = hso_create_device(interface, port_spec);
 	if (!hso_dev)
 		return NULL;
 
@@ -2939,7 +2940,8 @@ static int hso_probe(struct usb_interface *interface,
 		if ((port_spec & HSO_PORT_MASK) == HSO_PORT_NETWORK) {
 			/* Create the network device */
 			if (!disable_net) {
-				hso_dev = hso_create_net_device(interface);
+				hso_dev = hso_create_net_device(interface,
+								port_spec);
 				if (!hso_dev)
 					goto exit;
 				tmp_dev = hso_dev;
@@ -2971,7 +2973,7 @@ static int hso_probe(struct usb_interface *interface,
 		/* It's a regular bulk interface */
 		if (((port_spec & HSO_PORT_MASK) == HSO_PORT_NETWORK)
 		    && !disable_net)
-			hso_dev = hso_create_net_device(interface);
+			hso_dev = hso_create_net_device(interface, port_spec);
 		else
 			hso_dev =
 			    hso_create_bulk_serial_device(interface, port_spec);
--
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