torvalds/linux
3
0
Fork 0
mirror of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git synced 2026-03-22 23:46:49 +08:00
Code Issues Packages Projects Releases Wiki Activity

HID: quirks: work around VID/PID conflict for 0x4c4a/0x4155

Browse Source 
Based on available evidence, the USB ID 4c4a:4155 used by multiple
devices has been attributed to Jieli. The commit 1a8953f4f7
("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: 1a8953f4f7 ("HID: Add IGNORE quirk for SMARTLINKTECHNOLOGY")
Cc: stable@vger.kernel.org
Tested-by: staffan.melin@oscillator.se
Reviewed-by: Terry Junge <linuxhid@cosmicgizmosystems.com>
Signed-off-by: Zhang Heng <zhangheng@kylinos.cn>
Signed-off-by: Jiri Kosina <jkosina@suse.com>
This commit is contained in:
Zhang Heng
2025-09-12 20:38:18 +08:00
committed by Jiri Kosina
parent ed80cc4667
commit beab067dbc
2 changed files with 14 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
drivers/hid/hid-ids.h
View File

@@ -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

13
drivers/hid/hid-quirks.c
View File

@@ -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 &&