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Index: linux-2.6.39.4/drivers/usb/class/cdc-acm.c
===================================================================
--- linux-2.6.39.4.orig/drivers/usb/class/cdc-acm.c 2013-02-19 09:22:57.860051682 -0600
+++ linux-2.6.39.4/drivers/usb/class/cdc-acm.c 2013-02-19 09:30:35.274209660 -0600
@@ -963,6 +963,12 @@
goto skip_normal_probe;
}
+ /* ignore devices we don't want to support */
+ if (quirks == IGNORE_DEVICE) {
+ dev_dbg(&intf->dev, "Ignoring device\n");
+ return -ENODEV;
+ }
+
/* normal probing*/
if (!buffer) {
dev_err(&intf->dev, "Weird descriptor references\n");
@@ -1633,6 +1639,18 @@
.driver_info = NO_DATA_INTERFACE,
},
+ /* Ignore Exar XR21V141X usb serial chips
+ * This elminates conflicting with the Exar vizzini driver */
+ { USB_DEVICE(0x04e2, 0x1410),
+ .driver_info = IGNORE_DEVICE,
+ },
+ { USB_DEVICE(0x04e2, 0x1412),
+ .driver_info = IGNORE_DEVICE,
+ },
+ { USB_DEVICE(0x04e2, 0x1414),
+ .driver_info = IGNORE_DEVICE,
+ },
+
/* control interfaces without any protocol set */
{ USB_INTERFACE_INFO(USB_CLASS_COMM, USB_CDC_SUBCLASS_ACM,
USB_CDC_PROTO_NONE) },
Index: linux-2.6.39.4/drivers/usb/class/cdc-acm.h
===================================================================
--- linux-2.6.39.4.orig/drivers/usb/class/cdc-acm.h 2013-02-19 09:22:54.860050647 -0600
+++ linux-2.6.39.4/drivers/usb/class/cdc-acm.h 2013-02-19 09:24:00.856126438 -0600
@@ -138,3 +138,4 @@
#define NO_CAP_LINE 4
#define NOT_A_MODEM 8
#define NO_DATA_INTERFACE 16
+#define IGNORE_DEVICE 32
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