BMC junk devices

[Emmanuel Dreyfus <manu%netbsd.org@localhost>]

Hello

On a x86 servers based on Supermicro X13SAE-F motherboard, 
it seems the BMC (which cannot be disabled) exports a bunch of 
devices:

uhub2 at uhub1 port 4: Aspeed (0x1d6b) USB Virtual Hub (0x0107), class 9/0, rev 2.00/1.00, addr 26
uhub2: single transaction translator
uhidev0 at uhub2 port 1 configuration 1 interface 0
hidev0: Linux 5.4.62 with aspeed_vhub (0x0557) SMCI HID KM (0x9241), rev 2.00/5.04, addr 9, iclass 3/0
ukbd0 at uhidev0
wskbd0 at ukbd0 mux 1
uhidev1 at uhub2 port 1 configuration 1 interface 1
uhidev1: Linux 5.4.62 with aspeed_vhub (0x0557) SMCI HID KM (0x9241), rev 2.00/5.04, addr 9, iclass 3/1
ums0 at uhidev1: 3 buttons and Z dir
wsmouse0 at ums0 mux 0
urndis0 at uhub2 port 2 configuration 2 interface 0
urndis0: Linux 5.4.62 with aspeed_vhub (0x0b1f) RNDIS/Ethernet Gadget (0x03ee), rev 2.00/5.04, addr 10
urndis0: Ethernet address be:3a:f2:b6:05:9f

They are detected, then disconnected, then detected again... Do we
have a simple way of disabling them? 

userconf does not help, because they are not there a boot time. 

The least stupid thing I can think of is to patch uhub_match() to
ignore vendor ID 0x1d6b and product ID 0x0107. Is there something
better to be done?


-- 
Emmanuel Dreyfus
manu%netbsd.org@localhost