From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id DA596339365; Sun, 27 Sep 2026 15:54:13 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1790524453; cv=none; b=N/acuQu3m0VmRCd31lhK4K52bBH+AG89h5KqY/r0DBqaHjjkJxvfhw+oqluLVFkUhuRrannF806Z/g0a6yDalBHS0ujG3ng/ZpYqzWqxWV3UDHkaGQWFk5WsFIbaL1V9BPi+oo1ZcTVkfBaaBJCGzMYYTa960APFGOp6MvKjjXE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1790524453; c=relaxed/simple; bh=EudmtXiuy94lgut4rZXvxzNyCSSFnysF5xYcuiUtnkE=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:To:Cc; b=jZgeYlpU2ec4JlacEPyhzWjphjwgRB4h8r9SJZ0FY5+k5DHoxCMLjuYWIMam7pyHaIj3D46HRFKxzfJ1/n7t+MblzuPe+E2/BxdE7hWrKRlTr5QMZlWObyloSOZg+AaBw0WpoVzzOJiZ/zFNHQto8wdENCHCrNBn897bkQSkmbc= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=p06+WqhP; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="p06+WqhP" Received: by smtp.kernel.org (Postfix) with ESMTPS id 67315C2BCB3; Sun, 27 Sep 2026 15:54:13 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1790524453; bh=EudmtXiuy94lgut4rZXvxzNyCSSFnysF5xYcuiUtnkE=; h=From:Date:Subject:To:Cc:Reply-To:From; b=p06+WqhPr89RnLj1m5VnRAf0FpDXF0U2Bd37TkBJGPeyndBv2YQSgCuxVraLEjzZ9 RW57Zgp9ymKmPM6K6MqfVHUM9Voy/DvcEWg39bL2TJm8lBbNUE5k5csQsxjqFNZcR/ 4LKxqQXm9gbkOigxHLyQa1Pc0ca+/mnHDEycDwnL58fKcreEKswPqNlAHG/KcTLMbM 8asxHiPNwSVvNouOjL99Ijn6TMSDGJELCr/vZzS/bmzkVZzCLYKoIQ5TXh0iyMq+vP tbmkWsjSLO5YGBwPO4myQL8MiDxZ05Y+uhIJzqA+KFEOc/9ntvTwrZ6y3a9NxsI48F 30xiL1gXekl+g== Received: from aws-us-west-2-korg-lkml-1.web.codeaurora.org (localhost.localdomain [127.0.0.1]) by smtp.lore.kernel.org (Postfix) with ESMTP id 43C10C9830E; Sun, 27 Sep 2026 15:54:13 +0000 (UTC) From: Ali via B4 Relay Date: Sun, 27 Sep 2026 18:54:01 +0300 Subject: [PATCH] USB: quirks: add USB_QUIRK_WINDOWS_CONFIG_REQ_SIZE for GameSir G7 SE 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: 7bit Message-Id: <20260927-master-v1-1-96ff85291b25@gmail.com> X-B4-Tracking: v=1; b=H4sIAAAAAAAC/yXM0QpAMBTG8VfRubaaiTWvIhfGwVFGO0gt7264/ NX/+wIwekKGKgng8SSm1UVkaQLd1LoRBfXRoKQqpVFaLC3v6IU2xurC5rnEEmK8eRzo+o7q5jc fdsZuf9dw3w/KLEKzagAAAA== X-Change-ID: 20260927-master-799b75b330e6 To: Greg Kroah-Hartman Cc: linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org, stable@vger.kernel.org, Ali X-Mailer: b4 0.15.2 X-Developer-Signature: v=1; a=ed25519-sha256; t=1790524451; l=2586; i=aliresool567@gmail.com; s=20260927; h=from:subject:message-id; bh=FeFiKgZTUo9MnK6Okaqk4RcBEvF7GaYA8aXucYh/6SM=; b=VNtAduVk2LRlJGNV6nQCF/dxCdQjn9UlSx637pBBZ2Z0RDLc2CXCmlTPSWmAjNFBUc17C78b0 2316GCmxa+SBmZGfEBmjaeC0pb1XFJh1awY4YJQkKwY4SPHA9Bb/4uT X-Developer-Key: i=aliresool567@gmail.com; a=ed25519; pk=s/zyZoG6z3JyJokqs9ZIcSAb8PgriZ1QW+mgffBV90w= X-Endpoint-Received: by B4 Relay for aliresool567@gmail.com/20260927 with auth_id=1071 X-Original-From: Ali Reply-To: aliresool567@gmail.com From: Ali The GameSir G7 SE wired controller first enumerates as 3537:10a0 and then re-enumerates in a mode it picks from how the host enumerated it. When the configuration descriptor is fetched the Linux way, 9 bytes followed by the full 80, the controller disconnects about 1 ms after its string descriptors have been read, before SET_CONFIGURATION, and comes back as 3537:1082, a generic HID gamepad without force feedback. When the configuration descriptor is fetched in one 255-byte request, as Windows does, it comes back as 3537:1010 in Xbox One (GIP) mode, which xpad already supports, including rumble. Skipping the device qualifier requests (USB_QUIRK_DEVICE_QUALIFIER) makes no difference; the configuration descriptor request size alone decides the mode. Add USB_QUIRK_WINDOWS_CONFIG_REQ_SIZE for the 10a0 identity, as is already done for the ShanWan Wireless Gamepad. Cc: stable@vger.kernel.org Assisted-by: claude-opus-5-5 Signed-off-by: Ali --- Tested on 7.2.7 (x86_64, xHCI) by setting usbcore.quirks=3537:10a0:r at runtime. With it, the controller settles as 3537:1010 on every plug-in, is bound by xpad as "GameSir G7 SE", and rumble works through xpad's force feedback. Without it, it settles as 3537:1082 every time. The patch itself is against v7.3-rc5. usbmon of the 3537:10a0 enumeration without the quirk: GET_DESCRIPTOR (CONFIGURATION) with wLength 9, then 80, then string descriptors 0, 2, 1 and 3. The port reports a disconnect about 1 ms after the serial number string, and the SET_CONFIGURATION that follows fails with -EPROTO. With the quirk, the only difference is a single wLength 255 configuration request, after which the device re-enumerates as 3537:1010. --- drivers/usb/core/quirks.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/usb/core/quirks.c b/drivers/usb/core/quirks.c index b5b577f..a4bcbe9 100644 --- a/drivers/usb/core/quirks.c +++ b/drivers/usb/core/quirks.c @@ -612,6 +612,9 @@ static const struct usb_device_id usb_quirk_list[] = { /* ezcap401 - BOS descriptor fetch hangs at SuperSpeed Plus */ { USB_DEVICE(0x32ed, 0x0401), .driver_info = USB_QUIRK_NO_BOS }, + /* GameSir G7 SE */ + { USB_DEVICE(0x3537, 0x10a0), .driver_info = USB_QUIRK_WINDOWS_CONFIG_REQ_SIZE }, + /* DELL USB GEN2 */ { USB_DEVICE(0x413c, 0xb062), .driver_info = USB_QUIRK_NO_LPM | USB_QUIRK_RESET_RESUME }, --- base-commit: fd179f8a05be3ccae366b9b96e176b51fbe54aab change-id: 20260927-master-799b75b330e6 Best regards, -- Ali