linux-kernel - Re: [PATCH] HID: quirks: Add quirk for another Chicony Electronics HP 5MP Camera

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Message-ID: <sgvhxwvrylxdev77hb4hlfcviopljj3i64vempkxaigioyvcki@2fgjvotmp6d4>
Date: Fri, 21 Mar 2025 10:32:57 +0800
From: "Chia-Lin Kao (AceLan)" <acelan.kao@...onical.com>
To: Jiri Kosina <jikos@...nel.org>, 
	Benjamin Tissoires <bentiss@...nel.org>, linux-input@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] HID: quirks: Add quirk for another Chicony Electronics
 HP 5MP Camera

On Fri, Mar 21, 2025 at 10:25:40AM +0800, Chia-Lin Kao (AceLan) wrote:
> The Chicony Electronics HP 5MP Camera (USB ID 04F2:B824) 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.
We found another Chicony device with the same issue.
Please apply this patch after the previous submitted one.
Thanks.

https://lore.kernel.org/lkml/20250312063532.551938-1-acelan.kao@canonical.com/T/
> 
> Signed-off-by: Chia-Lin Kao (AceLan) <acelan.kao@...onical.com>
> ---
>  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 5fdea9116a3e..554dbed3f3ed 100644
> --- a/drivers/hid/hid-ids.h
> +++ b/drivers/hid/hid-ids.h
> @@ -298,6 +298,7 @@
>  #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_DEVICE_ID_CHICONY_HP_5MB_CAMERA2	0xb824
>  
>  #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 452fac15550b..91b3d121bb1f 100644
> --- a/drivers/hid/hid-quirks.c
> +++ b/drivers/hid/hid-quirks.c
> @@ -371,6 +371,7 @@ static const struct hid_device_id hid_have_special_driver[] = {
>  	{ 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) },
> +	{ HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_HP_5MB_CAMERA2) },
>  #endif
>  #if IS_ENABLED(CONFIG_HID_CMEDIA)
>  	{ HID_USB_DEVICE(USB_VENDOR_ID_CMEDIA, USB_DEVICE_ID_CM6533) },
> -- 
> 2.43.0