From 07466fc91c55532edcfb5c6a7ccd2ea52728d6bd Mon Sep 17 00:00:00 2001 From: hlleng Date: Tue, 12 May 2026 09:57:37 +0800 Subject: [PATCH] HID: quirks: Add ALWAYS_POLL quirk for SIGMACHIP USB mouse The SIGMACHIP USB mouse with VID/PID 1c4f:0034 can disconnect and re-enumerate repeatedly after it has been enumerated if its interrupt endpoint is not continuously polled. This was observed with the device reporting itself as "SIGMACHIP Usb Mouse". Keeping the input event device open avoids the disconnects. Add HID_QUIRK_ALWAYS_POLL for this device so the HID core keeps polling it even when there is no userspace input consumer. Cc: stable@vger.kernel.org Signed-off-by: hlleng Signed-off-by: Benjamin Tissoires --- 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 4657d96fb083..426ff78c1c03 100644 --- a/drivers/hid/hid-ids.h +++ b/drivers/hid/hid-ids.h @@ -1284,6 +1284,7 @@ #define USB_VENDOR_ID_SIGMA_MICRO 0x1c4f #define USB_DEVICE_ID_SIGMA_MICRO_KEYBOARD 0x0002 +#define USB_DEVICE_ID_SIGMA_MICRO_USB_MOUSE 0x0034 #define USB_DEVICE_ID_SIGMA_MICRO_KEYBOARD2 0x0059 #define USB_VENDOR_ID_SIGMATEL 0x066F diff --git a/drivers/hid/hid-quirks.c b/drivers/hid/hid-quirks.c index 512049963978..57d8efdd9b89 100644 --- a/drivers/hid/hid-quirks.c +++ b/drivers/hid/hid-quirks.c @@ -187,6 +187,7 @@ static const struct hid_device_id hid_quirks[] = { { HID_USB_DEVICE(USB_VENDOR_ID_SEMICO, USB_DEVICE_ID_SEMICO_USB_KEYKOARD), HID_QUIRK_NO_INIT_REPORTS }, { HID_USB_DEVICE(USB_VENDOR_ID_SENNHEISER, USB_DEVICE_ID_SENNHEISER_BTD500USB), HID_QUIRK_NOGET }, { HID_USB_DEVICE(USB_VENDOR_ID_SIGMA_MICRO, USB_DEVICE_ID_SIGMA_MICRO_KEYBOARD), HID_QUIRK_NO_INIT_REPORTS }, + { HID_USB_DEVICE(USB_VENDOR_ID_SIGMA_MICRO, USB_DEVICE_ID_SIGMA_MICRO_USB_MOUSE), HID_QUIRK_ALWAYS_POLL }, { HID_USB_DEVICE(USB_VENDOR_ID_SIGMATEL, USB_DEVICE_ID_SIGMATEL_STMP3780), HID_QUIRK_NOGET }, { HID_USB_DEVICE(USB_VENDOR_ID_SIS_TOUCH, USB_DEVICE_ID_SIS1030_TOUCH), HID_QUIRK_NOGET }, { HID_USB_DEVICE(USB_VENDOR_ID_SIS_TOUCH, USB_DEVICE_ID_SIS817_TOUCH), HID_QUIRK_NOGET },