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 8E1E02B9A9 for ; Mon, 2 Jun 2025 11:54:03 +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=1748865243; cv=none; b=eiKENz1OxlG+lZjYNuHlU6bbhD9amPMNo493ZJdtA24Z9Foej3a3i86oVXVVfFd63M9E1Qp1noU4TtWbU1TdI5TgWe6DtPDn1R8nlahkel5OYlQ6eS4parJVpSeKqmcpPjgzU5Dzatv80lPcq2iJiKhkaA6hzJXenTuYK6M1HiU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1748865243; c=relaxed/simple; bh=ZRhuUzfAeLWU1EMsHqsx7CWK6vmqonJ4N6zI0bOmssA=; h=From:To:Subject:Date:Message-ID:In-Reply-To:References: Content-Type:MIME-Version; b=B7wbYgeKf95VSmsJB8UzLjjgFmV/FuKkWLnGWH36xvfRErsT338f2wEo838atH2iVJNxl81WYwYF+ZkXlaW+Sh6aPj6a9SY/QEUOj+vdmyPjmQns+tEpf81XIiSAFsh5I7cr+VZVHbpjjzfJXsKVMbxCzU/03bGbYLgXtMDny/8= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=XXq+V+jn; 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="XXq+V+jn" Received: by smtp.kernel.org (Postfix) with ESMTPS id F2B08C4CEEB for ; Mon, 2 Jun 2025 11:54:02 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1748865243; bh=ZRhuUzfAeLWU1EMsHqsx7CWK6vmqonJ4N6zI0bOmssA=; h=From:To:Subject:Date:In-Reply-To:References:From; b=XXq+V+jn57ZWIgLaz0k0tO2iBfNY+2RLayCrkwhkgVo8AA02ERg1iKRYx8OQtvhRP ixqIgPerjzP4lF59XYrP4NQHxmmhXcf/ZdpFmBNN69vsyDOVmHDOr5Enf0VARwKwpi d/OkXG5pg932nzEILfXzfiGy3w2kwziUyOd1SnP215Hp2GeiWvraeRwZYvqDyCK9XJ A4+TMUJ1Qp611zdcdFYjZho293FtR9ZKPL1HiMbXVRO/tWnyMQm0UsntlLoPBEm/3n 7U2EvsyHmzbpOyFQ+Ke8UwD92a25+6mxS/jHWfLyErYeM+4Q0Q9geubCLWAYN4eMWH wF5mTMSFQlBLg== Received: by aws-us-west-2-korg-bugzilla-1.web.codeaurora.org (Postfix, from userid 48) id E40A7C41613; Mon, 2 Jun 2025 11:54:02 +0000 (UTC) From: bugzilla-daemon@kernel.org To: linux-usb@vger.kernel.org Subject: =?UTF-8?B?W0J1ZyAyMjAxODFdIFVzZXJzIGFjcm9zcyBkaXN0cmlidXRpb25z?= =?UTF-8?B?IHNlZSDigJxjb25maWcgZmFpbGVkLCBodWIgZG9lc27igJl0IGhhdmUgYW55?= =?UTF-8?B?IHBvcnRzISAoZXJyIC0xOSnigJ0gZnJvbSB4aGNpX2hjZCBhdCBib290Lg==?= Date: Mon, 02 Jun 2025 11:54:02 +0000 X-Bugzilla-Reason: None X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: AssignedTo drivers_usb@kernel-bugs.kernel.org X-Bugzilla-Product: Drivers X-Bugzilla-Component: USB X-Bugzilla-Version: 2.5 X-Bugzilla-Keywords: X-Bugzilla-Severity: low X-Bugzilla-Who: mathias.nyman@linux.intel.com X-Bugzilla-Status: NEW X-Bugzilla-Resolution: X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: drivers_usb@kernel-bugs.kernel.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: Message-ID: In-Reply-To: References: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: https://bugzilla.kernel.org/ Auto-Submitted: auto-generated Precedence: bulk X-Mailing-List: linux-usb@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 https://bugzilla.kernel.org/show_bug.cgi?id=3D220181 --- Comment #4 from Mathias Nyman (mathias.nyman@linux.intel.com) --- (In reply to Mr. Beedell, Roke Julian Lockhart (RJLB) from comment #3) > (In reply to Mathias Nyman from comment #2) >=20 > > Or does this xHC host have 0 ports on usb2 roothub as well? >=20 > I dare say that I'm operating at the boundaries of my lay man's knowledge= as > it is. How do you suggest that I ascertain this? Probably best to take a closer at the xHC port information of this host The reg-ext-protocol:00 and reg-ext-protocol:01 files in debugfs should show all info about the ports the host provides: Example, this machine has only one xHC at PCI address 0000:00:14.0: cat /sys/kernel/debug/usb/xhci/0000:00:14.0/reg-ext-protocol* EXTCAP_REVISION =3D 0x02000802 EXTCAP_NAME =3D 0x20425355 EXTCAP_PORTINFO =3D 0x30010e01 EXTCAP_PORTTYPE =3D 0x00000000 EXTCAP_MANTISSA1 =3D 0x000c0021 EXTCAP_MANTISSA2 =3D 0x05dc0012 EXTCAP_MANTISSA3 =3D 0x01e00023 EXTCAP_REVISION =3D 0x03000802 EXTCAP_NAME =3D 0x20425355 EXTCAP_PORTINFO =3D 0x10000610 EXTCAP_PORTTYPE =3D 0x00000000 EXTCAP_MANTISSA1 =3D 0x00050134 Above shows: EXTCAP_REVISION tells if ports are USB3 or USB2, EXTCAP_PORTNINFO =3D 0x****AA**, where AA tells us how many ports --=20 You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug.=