It shows up as ethernet adapter:

addr 02: 1a40:0101 Terminus Technology, USB2.0 HUB
addr 03: 1a86:e397 wch.cn, USB 10/100 LAN

then it switches to
addr 02: 1a40:0101 Terminus Technology, USB2.0 HUB
addr 03: 1a86:e497 wch.cn, WCH UDISK_V1.1


On Fri, 31 Jan 2025 21:19:30 +0100
MIZSEI Zoltán <zmiz...@extrowerk.com> wrote:

> Hi,
> 
> i have got a cheap USB ethernet adapter for my ARM SBC running OpenBSD 
> snapshot. If i connect it, it shows up as cdce, but then it automatically 
> detaches and comes up as a usb storage device (it holds the the windows 
> driver ).  It does this repeatedly. Can I force somehow OpenBSD to ignore the 
> mass storage device? DMESG below:
> 
> uhub2 at uhub1 port 1 configuration 1 interface 0 "Terminus Technology USB2.0 
> HUB" rev 2.00/1.00 addr 2
> cdce0 at uhub2 port 1 configuration 2 interface 0 "wch.cn USB 10/100 LAN" rev 
> 2.00/7.34 addr 3
> cdce0: address MA:CA:DD:RE:SS
> cdce0 detached
> umass0 at uhub2 port 1 configuration 1 interface 0 "wch.cn WCH UDISK_V1.1" 
> rev 2.00/0.31 addr 3
> umass0: using SCSI over Bulk-Only
> scsibus4 at umass0: 2 targets, initiator 0
> cd0 at scsibus4 targ 1 lun 0: <Flash, USB Special Disk, \\205`\\023> removable
> 
> it repeats this in ~ every 30 sec.
> 
> I have tested it on my x86 laptop running latest stable, it does the same, so 
> it is not a power supply issue.
> 
> Thanks for all the hints.
> 
> -ext
> 


-- 
MIZSEI Zoltán <zmiz...@extrowerk.com>

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