linux-kernel - [PATCH v1 1/1] usb: csc-acm: add Infineon/Comneon modem support (1519:0020)

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Message-ID: <20260122151746.7745-2-clamor95@gmail.com>
Date: Thu, 22 Jan 2026 17:17:46 +0200
From: Svyatoslav Ryhel <clamor95@...il.com>
To: Oliver Neukum <oneukum@...e.com>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Svyatoslav Ryhel <clamor95@...il.com>
Cc: linux-usb@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH v1 1/1] usb: csc-acm: add Infineon/Comneon modem support (1519:0020)

Add support for Infineon/Comneon XMM626X modem that used in many Tegra30
devices with GSM capablities like LG Optimus 4X (P880) and Vu (P895).

The Vendor Id is 0x1519
The Product ID is 0x0020

Output of lsusb:
Bus 001 Device 002: ID 1519:0020 Comneon HSIC Device

Signed-off-by: Svyatoslav Ryhel <clamor95@...il.com>
---
 drivers/usb/class/cdc-acm.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c
index 73f9476774ae..2bb84b261239 100644
--- a/drivers/usb/class/cdc-acm.c
+++ b/drivers/usb/class/cdc-acm.c
@@ -2024,6 +2024,10 @@ static const struct usb_device_id acm_ids[] = {
 	.driver_info = SEND_ZERO_PACKET,
 	},
 
+	{ USB_DEVICE(0x1519, 0x0020), /* Infineon/Comneon modem */
+	.driver_info = NO_UNION_NORMAL, /* has no union descriptor */
+	},
+
 	{ }
 };
 
-- 
2.51.0