Re: USB device fails to attach

[Valery Ushakov <uwe%stderr.spb.ru@localhost>]

On Tue, Aug 05, 2025 at 03:28:25 +0700, Robert Elz wrote:

>   | I am trying to use an old CF card reader.
>   |   umass0 at uhub0 port 1 configuration 1 interface 0
>   |   umass0: JetFlash (0x8564) Mass Storage Device (0x1000), rev 3.00/11.00, addr 17
>   |   ...
>   |
>   | Any leads on how do I debug this?  TIA.
> 
> If that's all you're getting for it, there's nothing to debug.   Literally.

I think you are misinterpeting.  The log you quote is from a
successful attachment and it gets to show that that USB port itself
does work, I elided the rest of the attach message as it's not really
interesting or relevant (hence the ellipsis).

The device in question fails with

  uhub1: port 1, set config at addr 18 failed
  uhub1: autoconfiguration error: device problem, disabling port 1

and that is *all* I get from the kernel, there're not even the
vendor/device id reported.


-uwe