linux-kernel - [PATCH v4] NDI FTDI USB driver support

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Message-ID:
 <YQXPR01MB4987FF89C01297FA6F1B0C9FDF42A@YQXPR01MB4987.CANPRD01.PROD.OUTLOOK.COM>
Date: Fri, 4 Jul 2025 17:25:43 +0000
From: Ryan Mann <rmann@...gital.com>
To: "gregkh@...uxfoundation.org" <gregkh@...uxfoundation.org>,
	"johan@...nel.org" <johan@...nel.org>
CC: "linux-usb@...r.kernel.org" <linux-usb@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: [PATCH v4] NDI FTDI USB driver support

From: Ryan Mann (NDI) <rmann@...gital.com>

NDI (Northern Digital Inc.) is introducing a new product called the 
EMGUIDE GEMINI that will use an FTDI chip for USB serial communications.
Remove the use of the baud rate mapping for NDI Aurora.
Add the NDI VID definition as "FTDI_NDI_VID" into the ftdi_sio_ids.h.
Add the NDI EMGUIDE GEMINI PID definition into the ftdi_sio_ids.h.
Add the NDI VID/EMGUIDE GEMINI PID combination to the USB_DEVICE list.

Signed-off-by: Ryan Mann <rmann@...gital.com>
---
V1 -> V2: Email-to issues fixed
V2 -> V3: Email formatting issues fixed
V3 -> V4: Email formatting issues fixed

 drivers/usb/serial/ftdi_sio.c     | 4 ++--
 drivers/usb/serial/ftdi_sio_ids.h | 2 ++
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/usb/serial/ftdi_sio.c b/drivers/usb/serial/ftdi_sio.c
index 6ac7a0a5cf07..e5d7cce83a72 100644
--- a/drivers/usb/serial/ftdi_sio.c
+++ b/drivers/usb/serial/ftdi_sio.c
@@ -801,8 +801,8 @@ static const struct usb_device_id id_table_combined[] = {
                .driver_info = (kernel_ulong_t)&ftdi_NDI_device_quirk },
        { USB_DEVICE(FTDI_VID, FTDI_NDI_FUTURE_3_PID),
                .driver_info = (kernel_ulong_t)&ftdi_NDI_device_quirk },
-       { USB_DEVICE(FTDI_VID, FTDI_NDI_AURORA_SCU_PID),
-               .driver_info = (kernel_ulong_t)&ftdi_NDI_device_quirk },
+       { USB_DEVICE(NDI_VID, FTDI_NDI_EMGUIDE_GEMINI_PID),
+         .driver_info = (kernel_ulong_t)&ftdi_NDI_device_quirk },
        { USB_DEVICE(TELLDUS_VID, TELLDUS_TELLSTICK_PID) },
        { USB_DEVICE(NOVITUS_VID, NOVITUS_BONO_E_PID) },
        { USB_DEVICE(FTDI_VID, RTSYSTEMS_USB_VX8_PID) },
diff --git a/drivers/usb/serial/ftdi_sio_ids.h b/drivers/usb/serial/ftdi_sio_ids.h
index 9acb6f837327..0cb33d257973 100644
--- a/drivers/usb/serial/ftdi_sio_ids.h
+++ b/drivers/usb/serial/ftdi_sio_ids.h
@@ -203,6 +203,8 @@
 #define FTDI_NDI_FUTURE_2_PID          0xDA72  /* NDI future device #2 */
 #define FTDI_NDI_FUTURE_3_PID          0xDA73  /* NDI future device #3 */
 #define FTDI_NDI_AURORA_SCU_PID                0xDA74  /* NDI Aurora SCU */
+#define FTDI_NDI_VID                   0x23F2  /* NDI Vendor ID */
+#define FTDI_NDI_EMGUIDE_GEMINI_PID    0x0003  /* NDI Emguide Gemini */

 /*
  * ChamSys Limited (www.chamsys.co.uk) USB wing/interface product IDs
--
2.43.0