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Sat, 11 Jul 2026 10:36:53 -0700 (PDT) From: Tim Pambor Date: Sat, 11 Jul 2026 17:36:30 +0000 Subject: [PATCH] USB: serial: ftdi_sio: add support for E+H FXA291 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20260711-fxa291-v1-1-cbd0b2652a9f@gmail.com> X-B4-Tracking: v=1; b=H4sIAB1/UmoC/yXMQQ5AMBCF4avIrDVpR5C6ilhUTRkLpEUk0rsrl l/yv3dDIM8UoMlu8HRy4HVJUHkGdjLLSIKHZECJlayVEu4yqJVAKrVE1K4qJKR48+T4+o7a7nc 4+pns/q4hxgekcIIPagAAAA== X-Change-ID: 20260711-fxa291-2e590229f630 To: Johan Hovold , Greg Kroah-Hartman Cc: linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org, Tim Pambor , stable@vger.kernel.org X-Mailer: b4 0.15.2 The Commubox FXA291 by Endress+Hauser AG is a USB serial converter based on FT232B which is used to communicate with field devices. It enumerates using the FTDI vendor ID and a custom PID. usb 1-9: New USB device found, idVendor=3D0403, idProduct=3De510, bcdDevice= =3D 4.00 usb 1-9: New USB device strings: Mfr=3D1, Product=3D2, SerialNumber=3D0 usb 1-9: Product: FXA291 usb 1-9: Manufacturer: Endress+Hauser usb 1-9: SerialNumber: 00000000 ftdi_sio 1-9:1.0: FTDI USB Serial Device converter detected usb 1-9: Detected FT232B usb 1-9: FTDI USB Serial Device converter now attached to ttyUSB0 Signed-off-by: Tim Pambor Cc: stable@vger.kernel.org --- drivers/usb/serial/ftdi_sio.c | 2 ++ drivers/usb/serial/ftdi_sio_ids.h | 5 +++++ 2 files changed, 7 insertions(+) diff --git a/drivers/usb/serial/ftdi_sio.c b/drivers/usb/serial/ftdi_sio.c index 88dd32da82c2b..c6ffa23bcc8f7 100644 --- a/drivers/usb/serial/ftdi_sio.c +++ b/drivers/usb/serial/ftdi_sio.c @@ -1072,6 +1072,8 @@ static const struct usb_device_id id_table_combined[]= =3D { { USB_DEVICE_INTERFACE_NUMBER(ALTERA_VID, ALTERA_UB3_602E_PID, 3) }, /* Abacus Electrics */ { USB_DEVICE(FTDI_VID, ABACUS_OPTICAL_PROBE_PID) }, + /* Endress+Hauser AG devices */ + { USB_DEVICE(FTDI_VID, FTDI_EH_FXA291_PID) }, { } /* Terminating entry */ }; =20 diff --git a/drivers/usb/serial/ftdi_sio_ids.h b/drivers/usb/serial/ftdi_si= o_ids.h index 6c76cfebfd0e4..968e6ea3177f7 100644 --- a/drivers/usb/serial/ftdi_sio_ids.h +++ b/drivers/usb/serial/ftdi_sio_ids.h @@ -617,6 +617,11 @@ #define FTDI_CUSTOMWARE_MINIPLEX2WI_PID 0xfd4a /* MiniPlex-2Wi */ #define FTDI_CUSTOMWARE_MINIPLEX3_PID 0xfd4b /* MiniPlex-3 series */ =20 +/* + * Endress+Hauser AG product ids (FTDI_VID) + */ +#define FTDI_EH_FXA291_PID 0xE510 + =20 /********************************/ /** third-party VID/PID combos **/ --- base-commit: 8cdeaa50eae8dad34885515f62559ee83e7e8dda change-id: 20260711-fxa291-2e590229f630 Best regards, -- =20 Tim Pambor