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Tue, 11 Mar 2025 23:35:38 -0700 (PDT) Sender: AceLan Kao From: "Chia-Lin Kao (AceLan)" To: Jiri Kosina , Benjamin Tissoires , linux-input@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH] HID: quirks: Add quirk for Chicony Electronics HP 5MP Camera Date: Wed, 12 Mar 2025 14:35:32 +0800 Message-ID: <20250312063532.551938-1-acelan.kao@canonical.com> X-Mailer: git-send-email 2.43.0 Precedence: bulk X-Mailing-List: linux-input@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 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. Add this device to the HID ignore list since the sensor interface is non-functional by design and should not be exposed to userspace. Signed-off-by: Chia-Lin Kao (AceLan) --- drivers/hid/hid-ids.h | 1 + drivers/hid/hid-quirks.c | 1 + 2 files changed, 2 insertions(+) diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h index 7e400624908e..5fdea9116a3e 100644 --- a/drivers/hid/hid-ids.h +++ b/drivers/hid/hid-ids.h @@ -297,6 +297,7 @@ #define USB_DEVICE_ID_ASUS_AK1D 0x1125 #define USB_DEVICE_ID_CHICONY_TOSHIBA_WT10A 0x1408 #define USB_DEVICE_ID_CHICONY_ACER_SWITCH12 0x1421 +#define USB_DEVICE_ID_CHICONY_HP_5MB_CAMERA 0xb82c #define USB_VENDOR_ID_CHUNGHWAT 0x2247 #define USB_DEVICE_ID_CHUNGHWAT_MULTITOUCH 0x0001 diff --git a/drivers/hid/hid-quirks.c b/drivers/hid/hid-quirks.c index 5d7a418ccdbe..452fac15550b 100644 --- a/drivers/hid/hid-quirks.c +++ b/drivers/hid/hid-quirks.c @@ -370,6 +370,7 @@ static const struct hid_device_id hid_have_special_driver[] = { { HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_WIRELESS2) }, { HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_ASUS_AK1D) }, { HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_ACER_SWITCH12) }, + { HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_HP_5MB_CAMERA) }, #endif #if IS_ENABLED(CONFIG_HID_CMEDIA) { HID_USB_DEVICE(USB_VENDOR_ID_CMEDIA, USB_DEVICE_ID_CM6533) },