[PATCH 0/1][SRU][N] Run iio_info will be stucked forever (HID-SENSOR-200011.5.auto/iio:device1)

[AceLan Kao]

From: "Chia-Lin Kao (AceLan)" <acelan.kao at canonical.com>

BugLink: https://bugs.launchpad.net/bugs/2102077

[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.kao@canonical.com/T/#u
v2 https://patchwork.kernel.org/project/linux-input/patch/20250506055015.774509-1-acelan.kao@canonical.com/

[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.

Chia-Lin Kao (AceLan) (1):
  HID: quirks: Add quirk for 2 Chicony Electronics HP 5MP Cameras

 drivers/hid/hid-ids.h    | 2 ++
 drivers/hid/hid-quirks.c | 2 ++
 2 files changed, 4 insertions(+)

-- 
2.43.0