[PATCH v4 4/4] media: uvcvideo: fix up missing AUTO_UPDATE on the OBSBOT Tail 2

From: Michael Jordan

Date: Mon Sep 28 2026 - 17:51:04 EST


The OBSBOT Tail 2 has the same defect as the Tiny 2. Add the same
fixup entries for it.

lsusb -v (device descriptor and Camera Terminal):

Bus 002 Device 003: ID 3564:fefc Remo Tech Co., Ltd. OBSBOT Tail 2
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 3.20
bDeviceClass 239 Miscellaneous Device
bDeviceSubClass 2 [unknown]
bDeviceProtocol 1 Interface Association
bMaxPacketSize0 9
idVendor 0x3564 Remo Tech Co., Ltd.
idProduct 0xfefc OBSBOT Tail 2
bcdDevice 4.19
iManufacturer 1 Remo Tech Co., Ltd.
iProduct 2 OBSBOT Tail 2
iSerial 0
bNumConfigurations 1
[...]
VideoControl Interface Descriptor:
bLength 18
bDescriptorType 36
bDescriptorSubtype 2 (INPUT_TERMINAL)
bTerminalID 1
wTerminalType 0x0201 Camera Sensor
bAssocTerminal 0
iTerminal 0
wObjectiveFocalLengthMin 0
wObjectiveFocalLengthMax 0
wOcularFocalLength 0
bControlSize 3
bmControls 0x00023e3e
Auto-Exposure Mode
Auto-Exposure Priority
Exposure Time (Absolute)
Exposure Time (Relative)
Focus (Absolute)
Zoom (Absolute)
Zoom (Relative)
PanTilt (Absolute)
PanTilt (Relative)
Roll (Absolute)
Focus, Auto

Assisted-by: LLM
Signed-off-by: Michael Jordan <jordan.mymail@xxxxxxxxx>
---
drivers/media/usb/uvc/uvc_ctrl.c | 12 ++++++++++++
1 file changed, 12 insertions(+)

diff --git a/drivers/media/usb/uvc/uvc_ctrl.c b/drivers/media/usb/uvc/uvc_ctrl.c
index 49ea6a6bcf57..202c2c95432a 100644
--- a/drivers/media/usb/uvc/uvc_ctrl.c
+++ b/drivers/media/usb/uvc/uvc_ctrl.c
@@ -2888,6 +2888,18 @@ static bool uvc_ctrl_fixup_flags(struct uvc_device *dev,
UVC_CT_ZOOM_ABSOLUTE_CONTROL,
UVC_CTRL_FLAG_SET_CUR | UVC_CTRL_FLAG_GET_RANGE |
UVC_CTRL_FLAG_RESTORE | UVC_CTRL_FLAG_AUTO_UPDATE },
+ { { USB_DEVICE(0x3564, 0xfefc) }, 1,
+ UVC_CT_PANTILT_ABSOLUTE_CONTROL,
+ UVC_CTRL_FLAG_SET_CUR | UVC_CTRL_FLAG_GET_RANGE |
+ UVC_CTRL_FLAG_RESTORE | UVC_CTRL_FLAG_AUTO_UPDATE },
+ { { USB_DEVICE(0x3564, 0xfefc) }, 1,
+ UVC_CT_PANTILT_RELATIVE_CONTROL,
+ UVC_CTRL_FLAG_SET_CUR | UVC_CTRL_FLAG_GET_RANGE |
+ UVC_CTRL_FLAG_AUTO_UPDATE },
+ { { USB_DEVICE(0x3564, 0xfefc) }, 1,
+ UVC_CT_ZOOM_ABSOLUTE_CONTROL,
+ UVC_CTRL_FLAG_SET_CUR | UVC_CTRL_FLAG_GET_RANGE |
+ UVC_CTRL_FLAG_RESTORE | UVC_CTRL_FLAG_AUTO_UPDATE },
};

unsigned int i;
--
2.43.0