netdev - [PATCHv2] USB: zaurus: support another broken Zaurus

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Message-Id: <20220210155911.15973-1-oneukum@suse.com>
Date:   Thu, 10 Feb 2022 16:59:11 +0100
From:   Oliver Neukum <oneukum@...e.com>
To:     linux-usb@...r.kernel.org, netdev@...r.kernel.org,
        davem@...emloft.net, kuba@...nel.org, gregKH@...uxfoundation.org
Cc:     Oliver Neukum <oneukum@...e.com>,
        Ross Maynard <bids.7405@...pond.com>
Subject: [PATCHv2] USB: zaurus: support another broken Zaurus

This SL-6000 says Direct Line, not Ethernet

v2: added Reporter and Link

Signed-off-by: Oliver Neukum <oneukum@...e.com>
Reported-by: Ross Maynard <bids.7405@...pond.com>
Link: https://bugzilla.kernel.org/show_bug.cgi?id=215361
---
 drivers/net/usb/cdc_ether.c | 12 ++++++++++++
 drivers/net/usb/zaurus.c    | 12 ++++++++++++
 2 files changed, 24 insertions(+)

diff --git a/drivers/net/usb/cdc_ether.c b/drivers/net/usb/cdc_ether.c
index eb3817d70f2b..9b4dfa3001d6 100644
--- a/drivers/net/usb/cdc_ether.c
+++ b/drivers/net/usb/cdc_ether.c
@@ -583,6 +583,11 @@ static const struct usb_device_id	products[] = {
 	.bInterfaceSubClass	= USB_CDC_SUBCLASS_ETHERNET, \
 	.bInterfaceProtocol	= USB_CDC_PROTO_NONE
 
+#define ZAURUS_FAKE_INTERFACE \
+	.bInterfaceClass	= USB_CLASS_COMM, \
+	.bInterfaceSubClass	= USB_CDC_SUBCLASS_MDLM, \
+	.bInterfaceProtocol	= USB_CDC_PROTO_NONE
+
 /* SA-1100 based Sharp Zaurus ("collie"), or compatible;
  * wire-incompatible with true CDC Ethernet implementations.
  * (And, it seems, needlessly so...)
@@ -636,6 +641,13 @@ static const struct usb_device_id	products[] = {
 	.idProduct              = 0x9032,	/* SL-6000 */
 	ZAURUS_MASTER_INTERFACE,
 	.driver_info		= 0,
+}, {
+	.match_flags    =   USB_DEVICE_ID_MATCH_INT_INFO
+		 | USB_DEVICE_ID_MATCH_DEVICE,
+	.idVendor               = 0x04DD,
+	.idProduct              = 0x9032,	/* SL-6000 */
+	ZAURUS_FAKE_INTERFACE,
+	.driver_info		= 0,
 }, {
 	.match_flags    =   USB_DEVICE_ID_MATCH_INT_INFO
 		 | USB_DEVICE_ID_MATCH_DEVICE,
diff --git a/drivers/net/usb/zaurus.c b/drivers/net/usb/zaurus.c
index 8e717a0b559b..5289b6e31713 100644
--- a/drivers/net/usb/zaurus.c
+++ b/drivers/net/usb/zaurus.c
@@ -256,6 +256,11 @@ static const struct usb_device_id	products [] = {
 	.bInterfaceSubClass	= USB_CDC_SUBCLASS_ETHERNET, \
 	.bInterfaceProtocol	= USB_CDC_PROTO_NONE
 
+#define ZAURUS_FAKE_INTERFACE \
+	.bInterfaceClass	= USB_CLASS_COMM, \
+	.bInterfaceSubClass	= USB_CDC_SUBCLASS_MDLM, \
+	.bInterfaceProtocol	= USB_CDC_PROTO_NONE
+
 /* SA-1100 based Sharp Zaurus ("collie"), or compatible. */
 {
 	.match_flags	=   USB_DEVICE_ID_MATCH_INT_INFO
@@ -313,6 +318,13 @@ static const struct usb_device_id	products [] = {
 	.idProduct              = 0x9032,	/* SL-6000 */
 	ZAURUS_MASTER_INTERFACE,
 	.driver_info = ZAURUS_PXA_INFO,
+}, {
+        .match_flags    =   USB_DEVICE_ID_MATCH_INT_INFO
+                 | USB_DEVICE_ID_MATCH_DEVICE,
+        .idVendor		= 0x04DD,
+        .idProduct		= 0x9032,	/* SL-6000 */
+        ZAURUS_FAKE_INTERFACE,
+        .driver_info = (unsigned long) &bogus_mdlm_info,
 }, {
 	.match_flags    =   USB_DEVICE_ID_MATCH_INT_INFO
 		 | USB_DEVICE_ID_MATCH_DEVICE,
-- 
2.34.1