vm launcher config for usb devices rom?

[Dan Connolly]

I'm making a vm launcher file; what do I put in there to make the ...

ROM (usb devices) -> usb devices rom

... connection noted in
https://genodians.org/jschlatow/2022-10-27-fresh-vm-on-sculpt ?

I can't configure it with the GUI because the vertical resolution on
this ThinkPad T430 is only 900 pixels and the vm config menu is too
tall.

I see the screen size limitation is known...

> That's a known limitation. I agree that it is inconvenient, so I keep it
> in the back of my mind. For regular Sculpt power users, it is not really
> a pressing issue since the /config/deploy file can be edited directly
> also (the graph is just a fancy frontend for editing this file)."
-- https://lists.genode.org/pipermail/users/2021-February/007521.html

But not being a Sculpt power user, I could use some help. If I were
able to use a larger screen and use the graph, what would I see in my
vm config?

For reference, the log starts out fine:

[runtime -> vm -> vbox] main     Log created: 2023-01-28T06:30:54.002000000Z
...
[runtime -> vm -> vbox]   0x4222000 .. 0x4245fff: VBoxSharedFolders.so
[runtime -> nic_router] [default] NIC sessions: 1

but then shows this error:

[runtime -> vm -> vbox] Error: ROM-session creation failed
(ram_quota=6144, cap_quota=3, label="usb_devices")
[runtime -> vm -> vbox] Error: Could not open ROM session for "usb_devices"
[runtime -> vm -> vbox] Error: Uncaught exception of type
'Genode::Rom_connection::Rom_connection_failed'
[runtime -> vm -> vbox] Warning: abort called - thread: EMT-0

-- 
Dan Connolly
http://www.madmode.com/