For context I have the same problem as this and this, but lack the reputation to comment on those. So since I do not have the answer, but have managed to get closer to an answer I ask here so we may be able to bring this problem forward. I use Ubuntu 22.04 but the problems are the same.
lshw find the camera as multimedia, not video.
sudo lshw -C multimedia
Before any drivers has been installed I get
*-multimedia:0 UNCLAIMED
description: Multimedia controller
product: Intel Corporation
vendor: Intel Corporation
physical id: 5
bus info: pci@0000:00:05.0
version: 01
width: 64 bits
clock: 33MHz
capabilities: pciexpress pm cap_list
configuration: latency=0
resources: iomemory:600-5ff memory:6052000000-6052ffffff
After I have installed the driver as explained below I get
*-multimedia:0
description: Multimedia controller
product: Intel Corporation
vendor: Intel Corporation
physical id: 5
bus info: pci@0000:00:05.0
version: 01
width: 64 bits
clock: 33MHz
capabilities: pciexpress pm bus_master cap_list
configuration: driver=intel-ipu6 latency=0
resources: iomemory:600-5ff irq:16 memory:6052000000-6052ffffff
To get this far I have installed the IPU6/IPU6EP stack manually:
sudo add-apt-repository ppa:oem-solutions-group/intel-ipu6
sudo apt install linux-modules-ipu6-generic-hwe-22.04 linux-modules-ivsc-generic-hwe-22.04
sudo apt install libcamhal-ipu6ep0
sudo reboot
Now we have /dev/video
ls -l /dev/video*
crw-rw----+ 1 root video 81, 0 juni 19 14:24 /dev/video0
crw-rw---- 1 root video 81, 1 juni 19 14:24 /dev/video1
Add video group to your user any way you like (I use pam_group and /etc/security/groups.conf)
Zoom is now able to recognize the camera as an "Intel MIPI Camera", but still refuses to show me video.
I get kernel errors
dmesg |grep ipu6
[ 4.449996] intel-ipu6 intel-ipu: enabling device (0000 -> 0002)
[ 4.450272] intel-ipu6 intel-ipu: Device 0xa75d (rev: 0x1)
[ 4.450295] intel-ipu6 intel-ipu: physical base address 0x6052000000
[ 4.450298] intel-ipu6 intel-ipu: mapped as: 0x00000000ba3d362f
[ 4.450354] intel-ipu6 intel-ipu: IPU in secure mode
[ 4.450355] intel-ipu6 intel-ipu: IPU secure touch = 0x0
[ 4.450357] intel-ipu6 intel-ipu: IPU camera mask = 0x0
[ 4.466705] intel-ipu6 intel-ipu: IPC reset done
[ 4.466710] intel-ipu6 intel-ipu: cpd file name: intel/ipu6ep_fw.bin
[ 4.468556] intel-ipu6 intel-ipu: FW version: 20220510
[ 4.473948] intel-ipu6 intel-ipu: Found supported sensor INT3537:00
[ 4.474049] intel-ipu6 intel-ipu: Connected 1 cameras
[ 4.475954] intel-ipu6 intel-ipu: Sending BOOT_LOAD to CSE
[ 4.488770] intel-ipu6 intel-ipu: Sending AUTHENTICATE_RUN to CSE
[ 4.566919] intel-ipu6 intel-ipu: CSE authenticate_run done
[ 4.566963] intel-ipu6 intel-ipu: IPU6-v3 driver version 1.0
[ 4.622336] intel-ipu6-psys intel-ipu6-psys0: pkg_dir entry count:8
[ 4.622623] intel-ipu6-psys intel-ipu6-psys0: psys probe minor: 0
[ 11.923791] intel-ipu6-isys intel-ipu6-isys0: isys port open ready failed -16
[ 11.923799] intel-ipu6-isys intel-ipu6-isys0: Device close failure: -16
[ 13.925869] intel-ipu6-isys intel-ipu6-isys0: Device release time out -16
[ 13.925882] intel-ipu6-isys intel-ipu6-isys0: Clearing old context
[ 13.925906] intel-ipu6-isys intel-ipu6-isys0: isys fw com open failed -5
[ 14.034750] intel-ipu6-isys intel-ipu6-isys0: bind hi556 15-0020 nlanes is 2 port is 1
[ 14.034798] intel-ipu6-isys intel-ipu6-isys0: All sensor registration completed.
[ 19.236907] intel-ipu6-isys intel-ipu6-isys0: Clearing old context
[ 19.236927] intel-ipu6-isys intel-ipu6-isys0: isys fw com open failed -5
The first time I tried installing the Intel-drivers from the oem-solutions-group PPA everything worked. I got video in Zoom and even Cheese worked as it should. I have however not been able to replicate this result after I reinstalled to make sure I could describe the process for future installations.
