[PATCH v2] HID: quirks: Add device descriptor for 4c4a:4155
From: Zhang Heng <hidden>
Date: 2025-09-23 02:25:00
Also in:
lkml
Subsystem:
hid core layer, the rest · Maintainers:
Jiri Kosina, Benjamin Tissoires, Linus Torvalds
Multiple USB devices have the same ID;
add device descriptors to distinguish them.
Fixes: 1a8953f4f774 ("HID: Add IGNORE quirk for SMARTLINKTECHNOLOGY")
Tested-by: staffan.melin@oscillator.se
Signed-off-by: Zhang Heng <redacted>
---
drivers/hid/hid-quirks.c | 12 +++++++++++-
1 file changed, 11 insertions(+), 1 deletion(-)
diff --git a/drivers/hid/hid-quirks.c b/drivers/hid/hid-quirks.c
index ffd034566e2e..d28b180abd72 100644
--- a/drivers/hid/hid-quirks.c
+++ b/drivers/hid/hid-quirks.c@@ -913,7 +913,6 @@ 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) }, { } };
@@ -1062,6 +1061,17 @@ bool hid_ignore(struct hid_device *hdev) strlen(elan_acpi_id[i].id))) return true; break; + case USB_VENDOR_ID_SMARTLINKTECHNOLOGY: + /* 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_SMARTLINKTECHNOLOGY_4155 && + strncmp(hdev->name, "SmartlinkTechnology", 19) == 0 && + strncmp(hdev->uniq, "20201111000001", 14) == 0) + return true; + break; } if (hdev->type == HID_TYPE_USBMOUSE &&
--
2.47.1