From beab067dbcff642243291fd528355d64c41dc3b2 Mon Sep 17 00:00:00 2001 From: Zhang Heng Date: Fri, 12 Sep 2025 20:38:18 +0800 Subject: [PATCH] HID: quirks: work around VID/PID conflict for 0x4c4a/0x4155 Based on available evidence, the USB ID 4c4a:4155 used by multiple devices has been attributed to Jieli. The commit 1a8953f4f774 ("HID: Add IGNORE quirk for SMARTLINKTECHNOLOGY") affected touchscreen functionality. Added checks for manufacturer and serial number to maintain microphone compatibility, enabling both devices to function properly. [jkosina@suse.com: edit shortlog] Fixes: 1a8953f4f774 ("HID: Add IGNORE quirk for SMARTLINKTECHNOLOGY") Cc: stable@vger.kernel.org Tested-by: staffan.melin@oscillator.se Reviewed-by: Terry Junge Signed-off-by: Zhang Heng Signed-off-by: Jiri Kosina --- drivers/hid/hid-ids.h | 4 ++-- drivers/hid/hid-quirks.c | 13 ++++++++++++- 2 files changed, 14 insertions(+), 3 deletions(-) diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h index 0723b4b1c9eca..52ae7c29f9e08 100644 --- a/drivers/hid/hid-ids.h +++ b/drivers/hid/hid-ids.h @@ -1543,7 +1543,7 @@ #define USB_VENDOR_ID_SIGNOTEC 0x2133 #define USB_DEVICE_ID_SIGNOTEC_VIEWSONIC_PD1011 0x0018 -#define USB_VENDOR_ID_SMARTLINKTECHNOLOGY 0x4c4a -#define USB_DEVICE_ID_SMARTLINKTECHNOLOGY_4155 0x4155 +#define USB_VENDOR_ID_JIELI_SDK_DEFAULT 0x4c4a +#define USB_DEVICE_ID_JIELI_SDK_4155 0x4155 #endif diff --git a/drivers/hid/hid-quirks.c b/drivers/hid/hid-quirks.c index bcd4bccf1a7ce..22760ac50f2d9 100644 --- a/drivers/hid/hid-quirks.c +++ b/drivers/hid/hid-quirks.c @@ -915,7 +915,6 @@ static const struct hid_device_id hid_ignore_list[] = { #endif { HID_USB_DEVICE(USB_VENDOR_ID_YEALINK, USB_DEVICE_ID_YEALINK_P1K_P4K_B2K) }, { HID_USB_DEVICE(USB_VENDOR_ID_QUANTA, USB_DEVICE_ID_QUANTA_HP_5MP_CAMERA_5473) }, - { HID_USB_DEVICE(USB_VENDOR_ID_SMARTLINKTECHNOLOGY, USB_DEVICE_ID_SMARTLINKTECHNOLOGY_4155) }, { } }; @@ -1064,6 +1063,18 @@ bool hid_ignore(struct hid_device *hdev) strlen(elan_acpi_id[i].id))) return true; break; + case USB_VENDOR_ID_JIELI_SDK_DEFAULT: + /* + * Multiple USB devices with identical IDs (mic & touchscreen). + * The touch screen requires hid core processing, but the + * microphone does not. They can be distinguished by manufacturer + * and serial number. + */ + if (hdev->product == USB_DEVICE_ID_JIELI_SDK_4155 && + strncmp(hdev->name, "SmartlinkTechnology", 19) == 0 && + strncmp(hdev->uniq, "20201111000001", 14) == 0) + return true; + break; } if (hdev->type == HID_TYPE_USBMOUSE && -- 2.47.3