linux-kernel - [PATCH v5] NDI FTDI USB driver support

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Message-ID:
 <YQXPR01MB498735732651163477C995B9DF49A@YQXPR01MB4987.CANPRD01.PROD.OUTLOOK.COM>
Date: Wed, 9 Jul 2025 13:50:15 +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 v5] 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.
Add the NDI EMGUIDE GEMINI product ID that uses the NDI Vendor ID
rather than the FTDI Vendor ID, unlike older products.

Signed-off-by: Ryan Mann <rmann@...gital.com>
---
V1 -> V2: Email-to issues fixed
V2 -> V3: Email formatting issues fixed, removed future devices
V3 -> V4: Email formatting issues fixed, removed extra comments
V4 -> V5:	Diff whitespace issues fixed,
			Restored the Aurora SCU device mapping that was removed

 drivers/usb/serial/ftdi_sio.c     | 2 ++
 drivers/usb/serial/ftdi_sio_ids.h | 3 +++
 2 files changed, 5 insertions(+)

diff --git a/drivers/usb/serial/ftdi_sio.c b/drivers/usb/serial/ftdi_sio.c
index 6ac7a0a5cf07..68f425e39da9 100644
--- a/drivers/usb/serial/ftdi_sio.c
+++ b/drivers/usb/serial/ftdi_sio.c
@@ -803,6 +803,8 @@ static const struct usb_device_id id_table_combined[] = {
 		.driver_info = (kernel_ulong_t)&ftdi_NDI_device_quirk },
 	{ USB_DEVICE(FTDI_VID, FTDI_NDI_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..4cc1fae8acb9 100644
--- a/drivers/usb/serial/ftdi_sio_ids.h
+++ b/drivers/usb/serial/ftdi_sio_ids.h
@@ -204,6 +204,9 @@
 #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
+#define FTDI_NDI_EMGUIDE_GEMINI_PID	0x0003	/* NDI Emguide Gemini */
+
 /*
  * ChamSys Limited (www.chamsys.co.uk) USB wing/interface product IDs
  */
--