From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-pj1-f44.google.com (mail-pj1-f44.google.com [209.85.216.44]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id EAF9C3BFAFB for ; Mon, 31 Aug 2026 08:44:17 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.216.44 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788165859; cv=none; b=X66L8AuVn+vpybqUZljTmH1JdF0OLmliVFC5hSdG7LNzf2o1LBBoqIa6EaHYy4bbJ/j1hHpXA1PuUcKpgNuuYB9+KcVqV8ngliAseGa7yumrTBSUdsG6KWX/69doDDkAYTglRD6ZHzOTH2e7MHiRA7/bVy4zo6D6mrlwmsIHizE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788165859; c=relaxed/simple; bh=EyX8qvocRRT4z+7IIC/7oHq63cyTz6iY0KWcwy2pMe8=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=oV4/jcwcL1qwhCp0jIdfdPvDPkEdyH/ZOSEzFb7NEkdHJ0EiA1XborsQh/RAXRW+bn809b4DpXQNzZS0mY1IxV+/2MtFApnAwRj62gV8HdBRoHpteqTftW5940Z3ltOJ+D3nouttBS3PRhk7BDsWibyKfXhq5ON181eyEwxWW9c= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=LFffVMkN; arc=none smtp.client-ip=209.85.216.44 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="LFffVMkN" Received: by mail-pj1-f44.google.com with SMTP id 98e67ed59e1d1-38dfe910e9dso3720266a91.3 for ; Mon, 31 Aug 2026 01:44:17 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20251104; t=1788165857; x=1788770657; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc:subject:date:message-id:reply-to:content-type; bh=MDVn5ErxJ0Fjvf5gqyhUkfteNgBIOZxlcmjpqwkLy4o=; b=LFffVMkNlwDGM9qUdafm7euTwYuV3Yus3MXloOqMgX3a8ZbMXhgI4Gaoq1F/vub08P XpYUoN/Qy6YIfvgN3lYDdS3okcwOjIYEWfKD0zZ54y7zo2gM9YcpCLe36zetmc+vQceM 7QzUEJihMQDscQZxvopPDnzIvWUbSQhB8kphbj6Nl2kgH2jLfuTiKRNa7QeC/81yTGsC O6YqpaxgMMuqSVBfxG1+4Uwpji/Fz4ckkmnXWYPffwhkYcYYJ1RzftWT83Bc7YSOS6rt 0GKjp4UHkeW+FFJu/OW93AT3vl5qcJYCKtROHyWNesIANUqYJhFgpgSDUpw1o0nYpDfo jn/g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1788165857; x=1788770657; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-gg:x-gm-message-state:from:to:cc:subject:date :message-id:reply-to:content-type; bh=MDVn5ErxJ0Fjvf5gqyhUkfteNgBIOZxlcmjpqwkLy4o=; b=jdAf8XEo8it9cHJopm4wHsdwR4kxkIWex9gIzilEURftYM6DfkDX8FLL48diEwMdwK Z/JBnCKbkQJ0uGsSGtL+Pzx6ASwxb2RCsJsfeUBVjtUOi7W8xblx4WceDLnhZE9gl9xc DbVTuWEu32B6jXfBM9o0+Cwy4D6yCnuvw5MLXDpNz7h3sc3Rn75wrvep86aMgz3flVZ6 lg9tymWeXdRaXZoPQRqtc65PhxyQ008kV0WNn+T1CQMZ3vWTtTorZYVpiw3JmiHPZQDY /tWGmec83cm/4hpa4rxPkaG2Nah3x8OgGo1HSdPQnXpyIq8Y28DP8ZG22WE63Z7ba7UZ Eg+w== X-Forwarded-Encrypted: i=1; AKwUvBxcXAmfN8+POaUWUuP3uzx9I8SbE5ZVlPTSP7NWEYv+RzQC+JORsJPichTY3njLkP/rJ1X8duu59yXTrM4=@vger.kernel.org X-Gm-Message-State: AFuF++keVYv6a0GiAHmghjruGHg36VzXFOf0/ELp/I1oEoQzO/9Pcu4u CHF694cPUp6HwwEjZV3+ZdVHvhwm+KV2WxVO/8ljxNLGM97DQfTJwG7jTq1uAprT X-Gm-Gg: AYBFou0jipXdsv9hBmgN8x0CPtfW2Ov9jcllz/iB2oksVK5HZYQ63E5Z1zYYaLdwohV GIZB8M1FqmY8wYntJxOIgKJS6nOT6BH9bgue6tREJw3tZN9HAsA8zIxIg2sm6p6/fOWoH8US49R MOCfjJOsVbq1deoQB6UZtSsc7UP4gWsVXtj911Bv7JEdH8bo0eFpxtSVUpSyT0wgtJJqKqOYuRd sPp+1DjETSn94b/l6mO3++QihTgyopS2+XA+NgFh3VLxlqK66OHR/VcLrUJrVLyxMkAi5amqIFt pTREHUVFmQZgnyf+u1Pu/mpBKD7A6b7RX1obW6kCGTk24VRqB3j5nZhhgFYIflbbhXz6RJGdYc1 SelshoICo7c5EUdEmG1TPAzIcs9iUa1wpdyM3zwckMDQYEnTqgt+VmhEUvQCwyjGPxiEYbkkC2j pxj/cEeEFexfHZhLs8J4PemVqDMaFSpAhw0FSaddPnz1f0fUvBl9PfdV5sky3B+dc1DHVJAPNCX oGMo4zXZZXEMBGiKALQl93/NDuyC+EwgfI6JpfeaA== X-Received: by 2002:a17:90b:3c89:b0:398:a2ed:7b5c with SMTP id 98e67ed59e1d1-398f88f2e0bmr2977653a91.24.1788165857075; Mon, 31 Aug 2026 01:44:17 -0700 (PDT) Received: from ian-lin-DREAMBOOK-PRO-14V.. ([2401:e180:8832:3ee7:cbb8:f1fb:c6e2:ba18]) by smtp.gmail.com with ESMTPSA id 98e67ed59e1d1-396b1ac3cbbsm20142625a91.17.2026.08.31.01.44.13 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 31 Aug 2026 01:44:16 -0700 (PDT) From: Ian Lin To: Johan Hovold Cc: Greg Kroah-Hartman , linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org, Ian Lin Subject: [PATCH v3] USB: serial: option: add Compal EXM-G1x support Date: Mon, 31 Aug 2026 16:44:05 +0800 Message-ID: <20260831084405.65506-1-jisayme@gmail.com> X-Mailer: git-send-email 2.43.0 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit The Compal EXM-G1x is a Qualcomm SDX12-based LTE modem. Add support for its vendor-specific serial interfaces with protocols 0x30, 0x40, and 0x60. Relevant output from usb-devices: T: Bus=04 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#= 4 Spd=5000 MxCh= 0 D: Ver= 3.20 Cls=ef(misc ) Sub=02 Prot=01 MxPS= 9 #Cfgs= 1 P: Vendor=04b7 ProdID=8217 Rev=05.04 S: Manufacturer=COMPAL S: Product=EXM-G1x C: #Ifs= 6 Cfg#= 1 Atr=a0 MxPwr=896mA I: If#= 0 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=30 Driver=option I: If#= 1 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=42 Prot=01 Driver=(none) I: If#= 2 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=60 Driver=option I: If#= 3 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=40 Driver=option I: If#= 4 Alt= 0 #EPs= 1 Cls=ff(vend.) Sub=ff Prot=ff Driver=(none) I: If#= 8 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=50 Driver=qmi_wwan Tested on a Compal EXM-G1x modem. Assisted-by: Codex:GPT-5 Signed-off-by: Ian Lin --- v3: - base on usb-next - add AI assistance attribution - post as a fresh thread v2: https://lore.kernel.org/20260828082645.13018-1-jisayme@gmail.com/ - split USB serial support into a separate patch - identify the Qualcomm SDX12 chipset and include usb-devices output - keep the device entries sorted and add the product name v1: https://lore.kernel.org/20260828075644.6228-1-jisayme@gmail.com/ drivers/usb/serial/option.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c index fd8f96294..8713f8b93 100644 --- a/drivers/usb/serial/option.c +++ b/drivers/usb/serial/option.c @@ -2541,6 +2541,9 @@ static const struct usb_device_id option_ids[] = { { USB_DEVICE_AND_INTERFACE_INFO(UNISOC_VENDOR_ID, TOZED_PRODUCT_LT70C, 0xff, 0, 0) }, { USB_DEVICE_AND_INTERFACE_INFO(UNISOC_VENDOR_ID, UNISOC_PRODUCT_UIS7720, 0xff, 0, 0) }, { USB_DEVICE_AND_INTERFACE_INFO(UNISOC_VENDOR_ID, LUAT_PRODUCT_AIR720U, 0xff, 0, 0) }, + { USB_DEVICE_AND_INTERFACE_INFO(0x04b7, 0x8217, 0xff, 0xff, 0x30) }, /* Compal EXM-G1x */ + { USB_DEVICE_AND_INTERFACE_INFO(0x04b7, 0x8217, 0xff, 0xff, 0x40) }, + { USB_DEVICE_AND_INTERFACE_INFO(0x04b7, 0x8217, 0xff, 0xff, 0x60) }, { USB_DEVICE_INTERFACE_CLASS(0x1bbb, 0x0530, 0xff), /* TCL IK512 MBIM */ .driver_info = NCTRL(1) }, { USB_DEVICE_INTERFACE_CLASS(0x1bbb, 0x0640, 0xff), /* TCL IK512 ECM */ base-commit: 15734de99517b0c81a1a5a3bccaff4593ef8d953 -- 2.43.0