[PATCH] USB: plusb: Add support for PL-2501

[kyak]

From: Mikhail Peselnik <peselnik@xxxxxxxxx>

This patch adds support for PL-2501 by adding the appropriate USB 
ID's. This chip is used in several USB 'Easy Trasfer' Cables.

Tested-by: Mikhail Peselnik <peselnik@xxxxxxxxx>
---
plusb driver (drivers/net/usb/plusb.c) doesn't recognize PL2501 chip. 
Since PL2501 uses the same code as PL2301/PL2302 (PL2501 works in compatibility 
mode with PL2301/PL2302), the fix is trivial and attached as a patch.

Just to note: the patch is not mine, it can be found here and there on
Internet.
I've tested the patch and it works great.

Thank you.

--- linux-3.5/drivers/net/usb/plusb.c.orig	2012-07-22 21:06:41.905802795 +0400
+++ linux-3.5/drivers/net/usb/plusb.c	2012-07-22 21:07:00.345552404 +0400
@@ -107,7 +107,7 @@ static int pl_reset(struct usbnet *dev)
 }

 static const struct driver_info	prolific_info = {
-	.description =	"Prolific PL-2301/PL-2302/PL-25A1",
+	.description =	"Prolific PL-2301/PL-2302/PL-25A1/PL-2501",
 	.flags =	FLAG_POINTTOPOINT | FLAG_NO_SETINT,
 		/* some PL-2302 versions seem to fail usb_set_interface() */
 	.reset =	pl_reset,
@@ -139,6 +139,9 @@ static const struct usb_device_id	produc
 }, {
 	USB_DEVICE(0x050d, 0x258a),     /* Belkin F5U258/F5U279 (PL-25A1) */
 	.driver_info =  (unsigned long) &prolific_info,
+}, {
+	USB_DEVICE(0x067b, 0x2501),     /* PL-2501 */
+	.driver_info =  (unsigned long) &prolific_info,
 },

 	{ },		// END
@@ -158,5 +161,5 @@ static struct usb_driver plusb_driver =
 module_usb_driver(plusb_driver);

 MODULE_AUTHOR("David Brownell");
-MODULE_DESCRIPTION("Prolific PL-2301/2302/25A1 USB Host to Host Link Driver");
+MODULE_DESCRIPTION("Prolific PL-2301/2302/25A1/2501 USB Host to Host Link Driver");
 MODULE_LICENSE("GPL");
--
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