Public bug reported: [Impact] The Chicony Electronics HP 5MP Camera (USB ID 04F2:B82C) reports a HID sensor interface that is not actually implemented. Attempting to access this non-functional sensor via iio_info causes system hangs as runtime PM tries to wake up an unresponsive sensor.
[Fix] Add this device to the HID ignore list since the sensor interface is non-functional by design and should not be exposed to userspace. https://lore.kernel.org/lkml/20250312063532.551938-1-acelan....@canonical.com/T/#u [Test] 1. Boot up the machine with this USB camera(04F2:B82C) 2. Run iio_info, it should return the iio information immediately [Where problems could occur] It's a quirk dedicated to a certain USB webcam, so it won't lead to other sesnors fail to work. ** Affects: hwe-next Importance: Undecided Status: New ** Affects: linux (Ubuntu) Importance: Undecided Assignee: AceLan Kao (acelankao) Status: In Progress ** Affects: linux-oem-6.11 (Ubuntu) Importance: Undecided Status: Invalid ** Affects: linux (Ubuntu Noble) Importance: Undecided Assignee: AceLan Kao (acelankao) Status: In Progress ** Affects: linux-oem-6.11 (Ubuntu Noble) Importance: Undecided Assignee: AceLan Kao (acelankao) Status: In Progress ** Affects: linux (Ubuntu Oracular) Importance: Undecided Assignee: AceLan Kao (acelankao) Status: In Progress ** Affects: linux-oem-6.11 (Ubuntu Oracular) Importance: Undecided Status: Invalid ** Affects: linux (Ubuntu Plucky) Importance: Undecided Assignee: AceLan Kao (acelankao) Status: In Progress ** Affects: linux-oem-6.11 (Ubuntu Plucky) Importance: Undecided Status: Invalid ** Tags: jira-stella-978 oem-priority stella ** Description changed: [Impact] The Chicony Electronics HP 5MP Camera (USB ID 04F2:B82C) reports a HID sensor interface that is not actually implemented. Attempting to access this non-functional sensor via iio_info causes system hangs as runtime PM tries to wake up an unresponsive sensor. [Fix] Add this device to the HID ignore list since the sensor interface is non-functional by design and should not be exposed to userspace. + https://lore.kernel.org/lkml/20250312063532.551938-1-acelan....@canonical.com/T/#u [Test] 1. Boot up the machine with this USB camera(04F2:B82C) 2. Run iio_info, it should return the iio information immediately [Where problems could occur] It's a quirk dedicated to a certain USB webcam, so it won't lead to other sesnors fail to work. ** Tags added: jira-stella-978 oem-priority stella ** Also affects: linux-oem-6.11 (Ubuntu Noble) Importance: Undecided Status: New ** Also affects: linux-oem-6.11 (Ubuntu Oracular) Importance: Undecided Status: New ** Also affects: linux-oem-6.11 (Ubuntu Plucky) Importance: Undecided Status: New ** Also affects: linux (Ubuntu) Importance: Undecided Status: New ** Changed in: linux (Ubuntu Noble) Status: New => In Progress ** Changed in: linux (Ubuntu Oracular) Status: New => In Progress ** Changed in: linux (Ubuntu Plucky) Status: New => In Progress ** Changed in: linux-oem-6.11 (Ubuntu Noble) Status: New => In Progress ** Changed in: linux-oem-6.11 (Ubuntu Oracular) Status: New => Invalid ** Changed in: linux-oem-6.11 (Ubuntu Plucky) Status: New => Invalid ** Changed in: linux-oem-6.11 (Ubuntu Noble) Assignee: (unassigned) => AceLan Kao (acelankao) ** Changed in: linux (Ubuntu Plucky) Assignee: (unassigned) => AceLan Kao (acelankao) ** Changed in: linux (Ubuntu Oracular) Assignee: (unassigned) => AceLan Kao (acelankao) ** Changed in: linux (Ubuntu Noble) Assignee: (unassigned) => AceLan Kao (acelankao) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2102077 Title: Run iio_info will be stucked forever (HID- SENSOR-200011.5.auto/iio:device1) To manage notifications about this bug go to: https://bugs.launchpad.net/hwe-next/+bug/2102077/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
