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20260211/q1.1.1a - initial d4xx-max96724 implementation for Intel IPU6 and IPU7#5
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@Pirouf Pirouf commented Mar 5, 2026

  • d4xx-max96724 : intial implementation for intel IPU6 and IPU7
root@eci-rvp-ptl-gmsl-4:~/intel-mipi-gmsl-modules-20260115# ./helpers/rs-enum-ipu.sh -n
Bus     Camera  Sensor  Node Type       Video Node      RS Link
 ipu7   a-2     ir      Inactive        /dev/video37    /dev/video-rs-ir-8
 ipu7   a-2     depth   Stream(id=0)    /dev/video33    /dev/video-rs-depth-8
 ipu7   a-2     imu     Inactive        /dev/video38    /dev/video-rs-imu-8
 ipu7   a-2     color   Stream(id=2)    /dev/video35    /dev/video-rs-color-8
 i2c    a-2     d4xx    Firmware        /dev/d4xx-dfu-a-2       /dev/d4xx-dfu-8
 ipu7   b-2     ir      Inactive        /dev/video43    /dev/video-rs-ir-9
 ipu7   b-2     depth   Stream(id=6)    /dev/video39    /dev/video-rs-depth-9
 ipu7   b-2     imu     Inactive        /dev/video44    /dev/video-rs-imu-9
 ipu7   b-2     color   Stream(id=8)    /dev/video41    /dev/video-rs-color-9
 i2c    b-2     d4xx    Firmware        /dev/d4xx-dfu-b-2       /dev/d4xx-dfu-9
 ipu7   c-2     ir      Inactive        /dev/video45    /dev/video-rs-ir-10
 ipu7   c-2     depth   Stream(id=1)    /dev/video34    /dev/video-rs-depth-10
 ipu7   c-2     imu     Inactive        /dev/video46    /dev/video-rs-imu-10
 ipu7   c-2     color   Stream(id=3)    /dev/video36    /dev/video-rs-color-10
 i2c    c-2     d4xx    Firmware        /dev/d4xx-dfu-c-2       /dev/d4xx-dfu-10
 ipu7   d-2     ir      Inactive        /dev/video47    /dev/video-rs-ir-11
 ipu7   d-2     depth   Stream(id=7)    /dev/video40    /dev/video-rs-depth-11
 ipu7   d-2     imu     Inactive        /dev/video48    /dev/video-rs-imu-11
 ipu7   d-2     color   Stream(id=9)    /dev/video42    /dev/video-rs-color-11
 i2c    d-2     d4xx    Firmware        /dev/d4xx-dfu-d-2       /dev/d4xx-dfu-11

root@eci-rvp-ptl-gmsl-4:~/intel-mipi-gmsl-modules-20260115# rs-enumerate-devices -S
Device Name                   Serial Number       Firmware Version
Intel RealSense D457          241122303302        5.17.0.10
Intel RealSense D457          242422303692        5.17.0.10
Intel RealSense D457          242422304793        5.17.0.10
Intel RealSense D457          242422303456        5.17.0.10
Device info:
    Name                          :     Intel RealSense D457
    Serial Number                 :     241122303302
    Firmware Version              :     5.17.0.10
    Recommended Firmware Version  :     5.17.0.9
    Physical Port                 :     /dev/video-rs-depth-10
    Debug Op Code                 :     15
    Advanced Mode                 :     YES
    Product Id                    :     ABCD
    Camera Locked                 :     YES
    Product Line                  :     D400
    Asic Serial Number            :     321543110732
    Firmware Update Id            :     321543110732
    Dfu Device Path               :     /dev/d4xx-dfu-10
    Connection Type               :     GMSL

Device info:
    Name                          :     Intel RealSense D457
    Serial Number                 :     242422303692
    Firmware Version              :     5.17.0.10
    Recommended Firmware Version  :     5.17.0.9
    Physical Port                 :     /dev/video-rs-depth-11
    Debug Op Code                 :     15
    Advanced Mode                 :     YES
    Product Id                    :     ABCD
    Camera Locked                 :     YES
    Product Line                  :     D400
    Asic Serial Number            :     250343111497
    Firmware Update Id            :     250343111497
    Dfu Device Path               :     /dev/d4xx-dfu-11
    Connection Type               :     GMSL

Device info:
    Name                          :     Intel RealSense D457
    Serial Number                 :     242422304793
    Firmware Version              :     5.17.0.10
    Recommended Firmware Version  :     5.17.0.9
    Physical Port                 :     /dev/video-rs-depth-8
    Debug Op Code                 :     15
    Advanced Mode                 :     YES
    Product Id                    :     ABCD
    Camera Locked                 :     YES
    Product Line                  :     D400
    Asic Serial Number            :     252143110007
    Firmware Update Id            :     252143110007
    Dfu Device Path               :     /dev/d4xx-dfu-8
    Connection Type               :     GMSL

Device info:
    Name                          :     Intel RealSense D457
    Serial Number                 :     242422303456
    Firmware Version              :     5.17.0.10
    Recommended Firmware Version  :     5.17.0.9
    Physical Port                 :     /dev/video-rs-depth-9
    Debug Op Code                 :     15
    Advanced Mode                 :     YES
    Product Id                    :     ABCD
    Camera Locked                 :     YES
    Product Line                  :     D400
    Asic Serial Number            :     245543111541
    Firmware Update Id            :     245543111541
    Dfu Device Path               :     /dev/d4xx-dfu-9
    Connection Type               :     GMSL

root@eci-rvp-ptl-gmsl-4:~/intel-mipi-gmsl-modules-20260115# media-ctl -d /dev/media0 -e "Intel IPU7 CSI2 2" -p
Media controller API version 6.17.2

Media device information
------------------------
driver          intel-ipu7
model           ipu7
serial
bus info        PCI:0000:00:05.0
hw revision     0x80867270
driver version  6.17.2

- entity 293: Intel IPU7 CSI2 2 (17 pads, 20 links, 16 routes)
              type V4L2 subdev subtype Unknown flags 0
              device node name /dev/v4l-subdev2
        routes:
                0/0 -> 1/0 [ACTIVE]
                0/2 -> 3/2 [ACTIVE]
                0/4 -> 5/4 [INACTIVE]
                0/5 -> 6/5 [INACTIVE]
                0/6 -> 7/6 [ACTIVE]
                0/8 -> 9/8 [ACTIVE]
                0/10 -> 11/10 [INACTIVE]
                0/11 -> 12/11 [INACTIVE]
                0/1 -> 2/1 [ACTIVE]
                0/3 -> 4/3 [ACTIVE]
                0/12 -> 13/12 [INACTIVE]
                0/13 -> 14/13 [INACTIVE]
                0/7 -> 8/7 [ACTIVE]
                0/9 -> 10/9 [ACTIVE]
                0/14 -> 15/14 [INACTIVE]
                0/15 -> 16/15 [INACTIVE]
        pad0: SINK,MUST_CONNECT
                [stream:0 fmt:UYVY8_1X16/640x480 field:none]
                [stream:2 fmt:YUYV8_1X16/640x480 field:none]
                [stream:6 fmt:UYVY8_1X16/640x480 field:none]
                [stream:8 fmt:YUYV8_1X16/640x480 field:none]
                [stream:1 fmt:UYVY8_1X16/640x480 field:none]
                [stream:3 fmt:YUYV8_1X16/640x480 field:none]
                [stream:7 fmt:UYVY8_1X16/640x480 field:none]
                [stream:9 fmt:YUYV8_1X16/640x480 field:none]
                <- "DS5 mux a-2":0 [ENABLED,IMMUTABLE]
                <- "DS5 mux b-2":0 [ENABLED,IMMUTABLE]
                <- "DS5 mux c-2":0 [ENABLED,IMMUTABLE]
                <- "DS5 mux d-2":0 [ENABLED,IMMUTABLE]
        pad1: SOURCE
                [stream:0 fmt:UYVY8_1X16/640x480 field:none
                 crop.bounds:(0,0)/640x480
                 crop:(0,0)/640x480]
                -> "Intel IPU7 ISYS Capture 32":0 [ENABLED]
        pad2: SOURCE
                [stream:1 fmt:UYVY8_1X16/640x480 field:none
                 crop.bounds:(0,0)/640x480
                 crop:(0,0)/640x480]
                -> "Intel IPU7 ISYS Capture 33":0 [ENABLED]
        pad3: SOURCE
                [stream:2 fmt:YUYV8_1X16/640x480 field:none
                 crop.bounds:(0,0)/640x480
                 crop:(0,0)/640x480]
                -> "Intel IPU7 ISYS Capture 34":0 [ENABLED]
        pad4: SOURCE
                [stream:3 fmt:YUYV8_1X16/640x480 field:none
                 crop.bounds:(0,0)/640x480
                 crop:(0,0)/640x480]
                -> "Intel IPU7 ISYS Capture 35":0 [ENABLED]
        pad5: SOURCE
                -> "Intel IPU7 ISYS Capture 36":0 [ENABLED]
        pad6: SOURCE
                -> "Intel IPU7 ISYS Capture 37":0 [ENABLED]
        pad7: SOURCE
                [stream:6 fmt:UYVY8_1X16/640x480 field:none
                 crop.bounds:(0,0)/640x480
                 crop:(0,0)/640x480]
                -> "Intel IPU7 ISYS Capture 38":0 [ENABLED]
        pad8: SOURCE
                [stream:7 fmt:UYVY8_1X16/640x480 field:none
                 crop.bounds:(0,0)/640x480
                 crop:(0,0)/640x480]
                -> "Intel IPU7 ISYS Capture 39":0 [ENABLED]
        pad9: SOURCE
                [stream:8 fmt:YUYV8_1X16/640x480 field:none
                 crop.bounds:(0,0)/640x480
                 crop:(0,0)/640x480]
                -> "Intel IPU7 ISYS Capture 40":0 [ENABLED]
        pad10: SOURCE
                [stream:9 fmt:YUYV8_1X16/640x480 field:none
                 crop.bounds:(0,0)/640x480
                 crop:(0,0)/640x480]
                -> "Intel IPU7 ISYS Capture 41":0 [ENABLED]
        pad11: SOURCE
                -> "Intel IPU7 ISYS Capture 42":0 [ENABLED]
        pad12: SOURCE
                -> "Intel IPU7 ISYS Capture 43":0 [ENABLED]
        pad13: SOURCE
                -> "Intel IPU7 ISYS Capture 44":0 [ENABLED]
        pad14: SOURCE
                -> "Intel IPU7 ISYS Capture 45":0 [ENABLED]
        pad15: SOURCE
                -> "Intel IPU7 ISYS Capture 46":0 [ENABLED]
        pad16: SOURCE
                -> "Intel IPU7 ISYS Capture 47":0 [ENABLED]

Pirouf and others added 30 commits March 5, 2026 10:18
* ipu-acpi: Copy ipu-acpi over from ipu6-drivers

Baseline commit c8029a6769b4a1c0f6e051cc226c48ac08e41949

Signed-off-by: hepengpx <pengpengx.he@intel.com>
Signed-off-by: Khai Wen Ng <khai.wen.ng@intel.com>
* media, i2c: build  dkms modules
* media: i2c: Copy over max9x from ipu6-drivers

Baseline on c8029a6769b4a1c0f6e051cc226c48ac08e41949

Signed-off-by: Khai Wen Ng <khai.wen.ng@intel.com>
Signed-off-by: florent pirou <florent.pirou@intel.com>
Signed-off-by: Khai Wen, Ng <khai.wen.ng@intel.com>
Signed-off-by: Khai Wen, Ng <khai.wen.ng@intel.com>
Signed-off-by: Khai Wen, Ng <khai.wen.ng@intel.com>
This change is to extract correct kernel version from BKC naming.

Signed-off-by: Khai Wen, Ng <khai.wen.ng@intel.com>
DRIVER_VERSION_SUFFIX dkms version suffix will be passed to kernel module version.

Signed-off-by: Khai Wen, Ng <khai.wen.ng@intel.com>
Baseline on c8029a6769b4a1c0f6e051cc226c48ac08e41949

Signed-off-by: Khai Wen Ng <khai.wen.ng@intel.com>
Signed-off-by: Khai Wen, Ng <khai.wen.ng@intel.com>
Signed-off-by: Khai Wen, Ng <khai.wen.ng@intel.com>
Signed-off-by: Khai Wen, Ng <khai.wen.ng@intel.com>
Signed-off-by: Khai Wen, Ng <khai.wen.ng@intel.com>
Signed-off-by: Khai Wen, Ng <khai.wen.ng@intel.com>
IPU6 on K6.12, IPU7 on K6.17

Signed-off-by: Khai Wen, Ng <khai.wen.ng@intel.com>
…pi v6.12, v6.17 and v6.18 support

Debian dkms build all dependencies from `ipu6-drivers` and `ipu7-drivers` github repositories
based of baseline PTL release for iot on 2025-12-30.

The upstream linux v6.12, v6.17 and v6.18 `v4l2-core` layers exact copies are maintained here to
allow `v4l2_subdev_enable_streams_api=true` support
(`=false` by default in kernel.org and Canonical Ubuntu)

* dkms: use ipu6-drivers and ipu7-drivers git-submodule to build ISYS and PSYS depends
* dkms : allow both with intel-lts and canonical linux headers
* v4l2-core : add v6.17 v4l2_subdev_enable_streams_api support
* v4l2-core : add v6.12 v4l2_subdev_enable_streams_api support
* ipu6-isys : add intel-lts out-of-tree patches
* v4l2-core : workaround ar0234 v4l2-cci deps missing on linux-lts 6.12 images

Signed-off-by: florent pirou <florent.pirou@intel.com>
* ipu6-isys, ipu7-isys: add d4xx video VIDIOC_S_EXT_CTRLS by streamid, add d4xx frame fmt
* dkms: avoid dh_source issues
* isys-video: ignore default raw colorspace that can not be overritten by v4l2src gst plugin
```
gst-launch-1.0 -e -v  v4l2src device=/dev/video-rs-color-0 ! 'video/x-raw, width=640, height=480, format=YUY2, pixel-aspect-ratio=1/1' ! videoconvert ! fakesink
```
* ipu6-isys, ipu7-isys: fix librealsense2 v4l2 backend pipeline config `rs2_pipeline_start_with_config` call returns an error in rs-depth Z16 pixel-format
```
There are 1 connected RealSense devices.

Using device 0, an Intel RealSense D457
    Serial number: 242422303456
    Firmware version: 5.13.1.53

The connected device doesn't support depth streaming!
```

Signed-off-by: florent pirou <florent.pirou@intel.com>
* maintain intel-ipu6-dkms (20250703+iotgipu6-0eci1) backward compat

Signed-off-by: florent pirou <florent.pirou@intel.com>
RealSense PRQ d4xx version is 1.0.1.20.
- support for sensor vc.
- support for sensor state.
- sensor own v4l2 controls.
- max9295/6 serdes drivers and control for multiple pipe.
- aggregation support

Signed-off-by: Dmitry Perchanov <dmitry.perchanov@intel.com>
Signed-off-by: florent pirou <florent.pirou@intel.com>
* d4xx: kernel6 intel#3 dmipx/ipu6-drivers@15ddce4
* d4xx: kernel6 intel#2 dmipx/ipu6-drivers@e113eca
* d4xx: kernel6 dmipx/ipu6-drivers@7726252

Signed-off-by: Dmitry Perchanov <dmitry.perchanov@intel.com>
* Kernel 6.6.15 release for Ubuntu (#216)

Signed-off-by: zouxiaoh <xiaohong.zou@intel.com>
Signed-off-by: florent pirou <florent.pirou@intel.com>
Signed-off-by: florent pirou <florent.pirou@intel.com>
ref-by: https://patches.linaro.org/project/linux-media/patch/20231213140450.21359-3-laurent.pinchart@ideasonboard.com/

The subdev .[gs]_frame_interval are video operations, but they operate
on pads (and even on streams). Not only is this confusing, it causes
practical issues for drivers as the operations don't receive a subdev
state pointer, requiring manual state handling.

To improve the situation, turn the operations into pad operations, and
extend them to receive a state pointer like other pad operations.

While at it, rename the operations to .[gs]et_frame_interval at the same
time to match the naming scheme of other pad operations. This isn't
strictly necessary, but given that all drivers using those operations
need to be modified, handling the rename separately would generate more
churn for very little gain (if at all).

Signed-off-by: florent pirou <florent.pirou@intel.com>
Signed-off-by: florent pirou <florent.pirou@intel.com>
* enable `v4l2-ctl --set-ctrl v4l2_cid_link_freq=` runtime override
* add D4XX_LINK_FREQ_750MHZ to MTL CSI D-PHY
* add MTL CSI2 D-PHY debug messages

Signed-off-by: Florent Pirou <florent.pirou@intel.com>
Signed-off-by: Florent Pirou <florent.pirou@intel.com>
* d4xx :  kernel NULL pointer dereference

[ 1950.081452] #PF: supervisor write access in kernel mode
[ 1950.086655] #PF: error_code(0x0002) - not-present page
[ 1950.216966] Call Trace:
[ 1950.219401]  <TASK>
[ 1950.221504]  ? show_regs+0x6d/0x80
[ 1950.224902]  ? __die+0x24/0x80
[ 1950.227952]  ? page_fault_oops+0x99/0x1b0
[ 1950.231948]  ? do_user_addr_fault+0x31d/0x6b0
[ 1950.236283]  ? exc_page_fault+0x83/0x1b0
[ 1950.240190]  ? asm_exc_page_fault+0x27/0x30
[ 1950.244358]  ? mutex_lock+0x1d/0x50
[ 1950.247827]  ? mutex_lock+0x12/0x50
[ 1950.251301]  max9296_reset_control+0x26/0xf0 [max9296]
[ 1950.256425]  ds5_remove+0xba/0x2e0 [d4xx]
[ 1950.260423]  i2c_device_remove+0x25/0xc0
[ 1950.264338]  device_remove+0x40/0x80
[ 1950.267899]  device_release_driver_internal+0x20b/0x270
[ 1950.273096]  driver_detach+0x4a/0xa0
[ 1950.276655]  bus_remove_driver+0x83/0x110
[ 1950.280641]  driver_unregister+0x2f/0x60
[ 1950.284542]  i2c_del_driver+0x46/0x90
[ 1950.288191]  ds5_i2c_driver_exit+0x10/0x18 [d4xx]

Signed-off-by: Florent Pirou <florent.pirou@intel.com>
Signed-off-by: Florent Pirou <florent.pirou@intel.com>
Signed-off-by: Florent Pirou <florent.pirou@intel.com>
Signed-off-by: florent pirou <florent.pirou@intel.com>
Pirouf and others added 23 commits March 5, 2026 10:58
Signed-off-by: Florent Pirou <florent.pirou@intel.com>
* debian: add d4xx-max96712 build option
* d4xx-max96724: configure X,Y,Z and U pipes on each GMSL inputs
* d4xx-max96724: add HS/VS pipe status msgs
* d4xx-max96724: delay CSI output enable after sensor stream start
* d4xx-max96724: trigger link reset after set_pipe, before csi output enable
* d4xx-max96724: comment out link reset after set_pipe, before csi output enable
* d4xx-max96724: cleanup debug messages
* d4xx-max96724: remove max9295 init error after gmsl a link reset
* d4xx-max96724: revamp sdev register source mapping
* d4xx-max96724: fix gmsl link source mapping
* d4xx: revisit get_fram_desc mux impl, add sensor get_fram_desc support
* d4xx-max96724: add link src dedicated pipe config build otion
* d4xx: cleanup get frame desc impl
* d4xx: change max96724 phy lanes mapping
* d4xx: fix max9295 and max92724 pairing mismatchs
* d4xx: fix max96724 csi mapping to ipu7
* d4xx: fix max96724 csi phy lane map to ipu7
* d4xx: add max96724 legacy mode compile option
* d4xx: change to max96724 dser 4X2 mode
* d4xx: configure max96724 vc_ext, ignore deskew in cphy
* d4xx-max96724: fix vc_id 4bits pipe mapping
* d4xx: tolerate max9295 and max96724 distinct csi mode and nlanes
* d4xx-max96724: fix set pipe select and lanes configs
* d4xx: clear max96724 vc_ext src 3bits msb
* d4xx-max96724: remove deskew init, cleanup lane cnt config
* d4xx: apply deskew init, fix csi lane config
* d4xx-max96724: fix cphy link-freq, remove dphy wake seq
* d4xx-max96724: fix cphy link-freq, remove dphy wake seq"
* d4xx-max96724: allow alternative pipe mapping on max96712
* d4xx-max96724: add 2000bps cphy link-speed
* d4xx-max96724: force dpll soft reset and config on all csi outputs
* d4xx-max96724: fix dpll soft reset sequence, switch to alt2 mem8
* d4xx-max96724: remove phy and csi sync concatenation
* d4xx: fix dual max96724 asymetric cphy pin map
* d4xx: exclude servoss montain specific cphy mapping
* d4xx: compile max96712 legacy mode by default
* d4xx: compile Servoss Mountain CRD max96724 cphy pinmap expection
* d4xx: compile Servoss Mountain CRD max96724 cphy pinmap expection
``` Makefile
subdir-ccflags-$(CONFIG_VIDEO_D4XX_MAX96724) += -DCONFIG_VIDEO_D4XX_MAX96712_LEGACY -DCONFIG_VIDEO_D4XX_MAX96724_SERVOSS_MOUNTAIN
```
* d4xx: replace Servoss mountain by module param
* d4xx-max96724: fix d4xx sensor SYNC config per pipe
* d4xx-max96724: configure max9295 i2c channel A only
* d4xx: init stream sink and source via substream array
* d4xx: fix stream fmt, enforce channel control
* d4xx: initial sensor get frame desc callback
* d4xx: set mux and sensors media entity distinct funtions
* d4xx: i2c channel control link mismatch
* d4xx-max96724 : fix pipe virtual channel mapping

Signed-off-by: florent pirou <florent.pirou@intel.com>
LRS expects success on hwmc ioctl call.

[Error] /tmp/sandbox/src/librealsense-exception.h:52 - xioctl(VIDIOC_G_EXT_CTRLS) failed Last Error: Bad message

Signed-off-by: Dmitry Perchanov <dmitry.perchanov@intel.com>
…s (#285)

* Added err and dmesg in ds5_get_hwmc if response length is 0
* Added comments and replaced hard coded HWMC addresses
* Add D41x support
* Fix D41x resolutions
* Relax Start stream TO
* Use only ds5_[raw]_<read/write> wrapper and not regmap_raw_<read/write> directly
Signed-off-by: florent pirou <florent.pirou@intel.com>
* assume d457 fw 5.16.0 or higher by default
* fix d4xx binding and v4l2 streamid mapping
* fix rs-depth Z16 pixel-format error
* add d4xx to udev rules
* d4xx bind media controller reset
* force d4xx isys vidcap in video group
* add d4xx module param max96724 csi mapping
* derive stream sink and source from isys pad index
* workaround csi subdev sink stream d4xx format mismatch
* fix d4xx C and D set_fmt
* manage inactive routes during binding
* helper: ignore pad fmt init on d4x inactive routes
* helper: activate all sensor routes for d4xx single camera binding
* helpers: detect d4xx vidcap with inactive routes
* helpers: fix d4xx media-ctl link binding syntaxe
* helpers: workaround the GMSL D eight active route per-csi2 limit
* helpers: bind all d4xx sensors if singular camera

Signed-off-by: florent pirou <florent.pirou@intel.com>
Signed-off-by: florent pirou <florent.pirou@intel.com>
Signed-off-by: florent pirou <florent.pirou@intel.com>
Signed-off-by: florent pirou <florent.pirou@intel.com>
@Pirouf Pirouf changed the title 20260211/q1.1.1a d4xx max9672x 20260211/q1.1.1a - initial d4xx-max96724 implementation for Intel IPU6 and IPU7 Mar 5, 2026
@Pirouf Pirouf marked this pull request as draft March 5, 2026 19:06
@Pirouf Pirouf force-pushed the 20260211/Q1.1.1a-d4xx-max9672x branch 2 times, most recently from 2562382 to 37da0d9 Compare March 6, 2026 11:18
* debian: initial dpkg rules, control and debconf
* submodule: Pin IPU6 drivers depends to 71e2e426f3e16f8bc42bf2f88a21fa95eeca5923
* submodule: Pin IPU7 drivers depends to 57304c286317ece4c0a74a52c4733486c57444ce
* dkms: remove one-size-don't-fit-all dkms conf
* README: rewrite the cumbersome getting started
* patches: WA `media-ctl` 1-digit stream-id limitation on `v4l-utils` v1.32 latest stable

Signed-off-by: florent pirou <florent.pirou@intel.com>
@Pirouf Pirouf force-pushed the 20260211/Q1.1.1a-d4xx-max9672x branch from 37da0d9 to f41d409 Compare March 6, 2026 12:32
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9 participants