From: Florian Zumbiehl <florz@florz.de>

Date: Mon, 6 Feb 2023 02:04:28 +0100

Subject: [PATCH] USB: serial: option: add support for VW/Skoda "Carstick LTE"

References: bsc#1012628

Patch-mainline: 6.2.2

Git-commit: 617c331d91077f896111044628c096802551dc66

commit 617c331d91077f896111044628c096802551dc66 upstream.

Add support for VW/Skoda "Carstick LTE"

D:  Ver= 2.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs=  1

P:  Vendor=1c9e ProdID=7605 Rev=02.00

S:  Manufacturer=USB Modem

S:  Product=USB Modem

C:  #Ifs= 4 Cfg#= 1 Atr=e0 MxPwr=500mA

I:  If#=0x0 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=(none)

I:  If#=0x1 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=ff Driver=(none)

I:  If#=0x2 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=ff Driver=(none)

I:  If#=0x3 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=ff Driver=(none)

The stick has AT command interfaces on interfaces 1, 2, and 3, and does PPP

on interface 3.

Signed-off-by: Florian Zumbiehl <florz@florz.de>

Cc: stable@vger.kernel.org

Signed-off-by: Johan Hovold <johan@kernel.org>

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Signed-off-by: Jiri Slaby <jslaby@suse.cz>

---

 drivers/usb/serial/option.c | 4 ++++

 1 file changed, 4 insertions(+)

diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c

index ee5ac4ef..e6d8d9b3 100644

--- a/drivers/usb/serial/option.c

+++ b/drivers/usb/serial/option.c

@@ -402,6 +402,8 @@ static void option_instat_callback(struct urb *urb);

 #define LONGCHEER_VENDOR_ID			0x1c9e

 /* 4G Systems products */

+/* This one was sold as the VW and Skoda "Carstick LTE" */

+#define FOUR_G_SYSTEMS_PRODUCT_CARSTICK_LTE	0x7605

 /* This is the 4G XS Stick W14 a.k.a. Mobilcom Debitel Surf-Stick *

  * It seems to contain a Qualcomm QSC6240/6290 chipset            */

 #define FOUR_G_SYSTEMS_PRODUCT_W14		0x9603

@@ -1976,6 +1978,8 @@ static const struct usb_device_id option_ids[] = {

 	  .driver_info = RSVD(2) },

 	{ USB_DEVICE(AIRPLUS_VENDOR_ID, AIRPLUS_PRODUCT_MCD650) },

 	{ USB_DEVICE(TLAYTECH_VENDOR_ID, TLAYTECH_PRODUCT_TEU800) },

+	{ USB_DEVICE(LONGCHEER_VENDOR_ID, FOUR_G_SYSTEMS_PRODUCT_CARSTICK_LTE),

+	  .driver_info = RSVD(0) },

 	{ USB_DEVICE(LONGCHEER_VENDOR_ID, FOUR_G_SYSTEMS_PRODUCT_W14),

 	  .driver_info = NCTRL(0) | NCTRL(1) },

 	{ USB_DEVICE(LONGCHEER_VENDOR_ID, FOUR_G_SYSTEMS_PRODUCT_W100),

-- 

2.35.3