linux-kernel - [PATCH] plusb added support for PL-27A1 , kernel 4.2.0-25

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Date:	Sun, 21 Feb 2016 15:41:08 +0100
From:	Daniel Kucera <daniel.kucera@...il.com>
To:	linux-kernel@...r.kernel.org
Cc:	"David S. Miller" <davem@...emloft.net>
Subject: [PATCH] plusb added support for PL-27A1 , kernel 4.2.0-25

Hello all,

I made a patch to add support for Prolific PL-27A1 host-to-host USB 3.0 
link cable. It's the same platform as PL-25A1 but with USB3.0 interface 
so basically I only added right vendor/device id to get detected. 
Maximum throughput I managed to get was about 1.5Gbps using iperf. I'll 
investigate usbnet to  get even higher throughput, if you have any tips 
where to look, let me know.

Developed and tested under 4.2.0-25.

Best regards
Daniel Kucera.

diff --git a/drivers/net/usb/plusb.c b/drivers/net/usb/plusb.c
index 1bfe0fc..1239239 100644
--- a/drivers/net/usb/plusb.c
+++ b/drivers/net/usb/plusb.c
@@ -102,7 +102,7 @@ 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-27A1",
      .flags =    FLAG_POINTTOPOINT | FLAG_NO_SETINT,
          /* some PL-2302 versions seem to fail usb_set_interface() */
      .reset =    pl_reset,
@@ -139,6 +139,15 @@ static const struct usb_device_id    products [] = {
                       * Host-to-Host Cable
                       */
      .driver_info =  (unsigned long) &prolific_info,
+
+},
+
+/* super speed cables */
+{
+    USB_DEVICE(0x067b, 0x27a1),     /* goobay Active USB 3.0 Data Link
+                     * Cable (PL-27A1)
+                     */
+    .driver_info =  (unsigned long) &prolific_info,
  },

      { },        // END
@@ -158,5 +167,5 @@ 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-2301/2302/25A1/27A1 USB Host to Host 
Link Driver");
  MODULE_LICENSE("GPL");