[PATCH 5.15 20/22] USB: serial: option: add support for VW/Skoda "Carstick LTE"

Greg Kroah-Hartman
2023-03-01T18:11:01Z

From: Florian Zumbiehl <florz@florz.de>

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>
---
drivers/usb/serial/option.c | 4 ++++
1 file changed, 4 insertions(+)

--- a/drivers/usb/serial/option.c
+++ b/drivers/usb/serial/option.c
@@ -402,6 +402,8 @@ static void option_instat_callback(struc
#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
.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),