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Mon, 2 Jun 2025 12:25:39 +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 12:25:38 +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: 6svcyk03@rokejulianlockhart.addy.io 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: cf_kernel_version 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 Mr. Beedell, Roke Julian Lockhart (RJLB) (6svcyk03@rokejulianlockhart.addy.= io) changed: What |Removed |Added ---------------------------------------------------------------------------- Kernel Version| |https://koji.fedoraproject. | |org/koji/rpminfo?rpmID=3D4= 290 | |0892 --- Comment #5 from Mr. Beedell, Roke Julian Lockhart (RJLB) (6svcyk03@roke= julianlockhart.addy.io) --- "`sudo ls /sys/kernel/debug/usb/xhci/`" returns "`0000:5a:00.0`": ``` 0000:08:00.0 0000:54:00.0 0000:56:00.0 0000:59:00.3 0000:59:00.4=20 0000:5a:00.0 ``` ...so I tried the problematic port (and a random alternative): ``` #!/usr/bin/env sh sudo cat /sys/kernel/debug/usb/xhci/0000:08:00.0/reg-ext-protocol:00 sudo cat /sys/kernel/debug/usb/xhci/0000:08:00.0/reg-ext-protocol:01 ``` For the problematic port, solely the first command returns: ``` EXTCAP_REVISION =3D 0x02000402 EXTCAP_NAME =3D 0x20425355 EXTCAP_PORTINFO =3D 0x00180101 EXTCAP_PORTTYPE =3D 0x00000000 ``` For the second command, the file supposedly doesn't exist: > cat: '/sys/kernel/debug/usb/xhci/0000:5a:00.0/reg-ext-protocol:01': No su= ch file or directory This somewhat perplexes me, considering that the random alternative at "`su= do cat /sys/kernel/debug/usb/xhci/0000:08:00.0/reg-ext-protocol:01`" quite hap= pily works: ``` EXTCAP_REVISION =3D 0x03101402 EXTCAP_NAME =3D 0x20425355 EXTCAP_PORTINFO =3D 0x80000203 EXTCAP_PORTTYPE =3D 0x00000000 EXTCAP_MANTISSA1 =3D 0x00050134 EXTCAP_MANTISSA2 =3D 0x000a4135 EXTCAP_MANTISSA3 =3D 0x04e00126 EXTCAP_MANTISSA4 =3D 0x09c00127 EXTCAP_MANTISSA5 =3D 0x13800128 EXTCAP_MANTISSA6 =3D 0x05b10129 ``` At least, this appears to demonstrate that one port exists, although apolog= ies if I've misunderstood. For reference, I'm using `kernel-6.14.9-300.fc42.x86_64`. --=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.=