Supervisor addon functionality lacks ability to allow usbip bind with home assistant os 9.0rc2

Describe the issue you are experiencing

Supervisor does now allow interacting with usbip /sys device with newest home assistant os (that includes usbip drivers).

What is the used version of the Supervisor?

2022.09.0

What type of installation are you running?

Home Assistant OS

Which operating system are you running on?

Home Assistant Operating System

What is the version of your installed operating system?

9.0rc2

What version of Home Assistant Core is installed?

2022.9.1

Steps to reproduce the issue

I had initially reported this issue to the home assistant OS repo here but it would seem more fitting here.

Home assistant OS 9.0 has added the kernel level usbip drivers to allow addon containers to mount usbip devices, unfortunately as it currently stands the addon config template does not provide enough functionality to fully implement this feature.

To test I created a basic addon container that has usbip binaries along with ssh to navigate inside the container, here.

After correctly loading the vhci-hcd drivers, inside the container run the following:

root@7cbb8c6e-usbipclient:/sys/devices/platform/vhci_hcd.0# usbip list -r 10.0.0.77
Exportable USB devices
======================
 - 10.0.0.77
      1-1.4: Realtek Semiconductor Corp. : unknown product (0bda:a725)
           : /sys/devices/platform/soc/20980000.usb/usb1/1-1/1-1.4
           : Wireless / Radio Frequency / Bluetooth (e0/01/01)
           :  0 - Wireless / Radio Frequency / Bluetooth (e0/01/01)
           :  1 - Wireless / Radio Frequency / Bluetooth (e0/01/01)

root@7cbb8c6e-usbipclient:/sys/devices/platform/vhci_hcd.0# usbip --debug attach -r 10.0.0.77 -b 1-1.4
usbip: debug: usbip.c:129:[run_command] running command: `attach'
libusbip: debug: vhci_driver.c:269:[usbip_vhci_driver_open] available ports: 16
libusbip: debug: vhci_driver.c:281:[usbip_vhci_driver_open] available controllers: 1
libusbip: debug: vhci_driver.c:128:[refresh_imported_device_list] controller 0
libusbip: debug: vhci_driver.c:67:[parse_status] hub hs port 0 status 4 speed 0 devid 0
libusbip: debug: vhci_driver.c:69:[parse_status] sockfd 0 lbusid 0-0
libusbip: debug: vhci_driver.c:67:[parse_status] hub hs port 1 status 4 speed 0 devid 0
libusbip: debug: vhci_driver.c:69:[parse_status] sockfd 0 lbusid 0-0
libusbip: debug: vhci_driver.c:67:[parse_status] hub hs port 2 status 4 speed 0 devid 0
libusbip: debug: vhci_driver.c:69:[parse_status] sockfd 0 lbusid 0-0
libusbip: debug: vhci_driver.c:67:[parse_status] hub hs port 3 status 4 speed 0 devid 0
libusbip: debug: vhci_driver.c:69:[parse_status] sockfd 0 lbusid 0-0
libusbip: debug: vhci_driver.c:67:[parse_status] hub hs port 4 status 4 speed 0 devid 0
libusbip: debug: vhci_driver.c:69:[parse_status] sockfd 0 lbusid 0-0
libusbip: debug: vhci_driver.c:67:[parse_status] hub hs port 5 status 4 speed 0 devid 0
libusbip: debug: vhci_driver.c:69:[parse_status] sockfd 0 lbusid 0-0
libusbip: debug: vhci_driver.c:67:[parse_status] hub hs port 6 status 4 speed 0 devid 0
libusbip: debug: vhci_driver.c:69:[parse_status] sockfd 0 lbusid 0-0
libusbip: debug: vhci_driver.c:67:[parse_status] hub hs port 7 status 4 speed 0 devid 0
libusbip: debug: vhci_driver.c:69:[parse_status] sockfd 0 lbusid 0-0
libusbip: debug: vhci_driver.c:67:[parse_status] hub ss port 8 status 4 speed 0 devid 0
libusbip: debug: vhci_driver.c:69:[parse_status] sockfd 0 lbusid 0-0
libusbip: debug: vhci_driver.c:67:[parse_status] hub ss port 9 status 4 speed 0 devid 0
libusbip: debug: vhci_driver.c:69:[parse_status] sockfd 0 lbusid 0-0
libusbip: debug: vhci_driver.c:67:[parse_status] hub ss port 10 status 4 speed 0 devid 0
libusbip: debug: vhci_driver.c:69:[parse_status] sockfd 0 lbusid 0-0
libusbip: debug: vhci_driver.c:67:[parse_status] hub ss port 11 status 4 speed 0 devid 0
libusbip: debug: vhci_driver.c:69:[parse_status] sockfd 0 lbusid 0-0
libusbip: debug: vhci_driver.c:67:[parse_status] hub ss port 12 status 4 speed 0 devid 0
libusbip: debug: vhci_driver.c:69:[parse_status] sockfd 0 lbusid 0-0
libusbip: debug: vhci_driver.c:67:[parse_status] hub ss port 13 status 4 speed 0 devid 0
libusbip: debug: vhci_driver.c:69:[parse_status] sockfd 0 lbusid 0-0
libusbip: debug: vhci_driver.c:67:[parse_status] hub ss port 14 status 4 speed 0 devid 0
libusbip: debug: vhci_driver.c:69:[parse_status] sockfd 0 lbusid 0-0
libusbip: debug: vhci_driver.c:67:[parse_status] hub ss port 15 status 4 speed 0 devid 0
libusbip: debug: vhci_driver.c:69:[parse_status] sockfd 0 lbusid 0-0
libusbip: debug: vhci_driver.c:104:[parse_status] exit
usbip: debug: usbip_attach.c:100:[import_device] got free port 0
libusbip: debug: vhci_driver.c:367:[usbip_vhci_attach_device2] writing: 0 3 65541 2
libusbip: debug: vhci_driver.c:372:[usbip_vhci_attach_device2] attach attribute path: /sys/devices/platform/vhci_hcd.0/attach
usbip: debug: sysfs_utils.c:18:[write_sysfs_attribute] error opening attribute /sys/devices/platform/vhci_hcd.0/attach
libusbip: debug: vhci_driver.c:376:[usbip_vhci_attach_device2] write_sysfs_attribute failed
usbip: error: import device

While I do see /sys/devices/platform/vhci_hcd.0/attach mounted in the container:

oot@7cbb8c6e-usbipclient:/sys/devices/platform/vhci_hcd.0# ls -l
total 0
--w------- 1 root root 4096 Sep 12 16:00 attach
--w------- 1 root root 4096 Sep 12 16:06 detach
lrwxrwxrwx 1 root root    0 Sep 12 16:06 driver -> ../../../bus/platform/drivers
-rw-r--r-- 1 root root 4096 Sep 12 16:06 driver_override
-r--r--r-- 1 root root 4096 Sep 12 16:06 modalias
-r--r--r-- 1 root root 4096 Sep 12 16:00 nports
drwxr-xr-x 2 root root    0 Sep 12 16:06 power
-r--r--r-- 1 root root 4096 Sep 12 16:00 status
lrwxrwxrwx 1 root root    0 Sep 12 16:06 subsystem -> ../../../bus/platform
-rw-r--r-- 1 root root 4096 Sep 12 16:00 uevent
drwxr-xr-x 5 root root    0 Sep 12 16:06 usb3
drwxr-xr-x 5 root root    0 Sep 12 16:06 usb4
-rw-r--r-- 1 root root 4096 Sep 12 16:06 usbip_debug

My understanding is that /sys is mounted as read only:

root@7cbb8c6e-usbipclient:/sys/devices/platform/vhci_hcd.0# cat attach
cat: attach: Permission denied
root@7cbb8c6e-usbipclient:/sys/devices/platform/vhci_hcd.0# echo 'test' > attach
-bash: attach: Read-only file system

I was able to manually modify the addon containers mount points by adding:

/sys/devices/platform/vhci_hcd.0:/sys/devices/platform/vhci_hcd.0 rw
/sys/bus/platform/drivers/vhci_hcd:/sys/bus/platform/drivers/vhci_hcd rw

However I do not see a way to accomplish this via the addon config template. My understanding is that we would want to be able to mount /sys/devices/platform/vhci_hcd.0:/sys/devices/platform/vhci_hcd.[x] as the number would increase with each additional usbip device.

Anything in the Supervisor logs that might be useful for us?

Nothing of interest

Additional information

No response

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[OptimusGREEN]

has this been implemented yet?