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Date:      Sun, 14 Oct 2018 18:57:48 +0200
From:      Tomasz CEDRO <>
To:        "" <>,  FreeBSD Questions Mailing List <>
Subject:   USB-C smartphone does not detect correctly as UMS
Message-ID:  <>

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Hello world,

I have problems detecting a smartphone over USB-C - at first it only
changes over the USB, then I switch it to be a USB Mass Storage, but I
see no disk.. the same with different modes (i.e. Media Transfer,
Picture Transfer, etc)..

DMESG shows only device connected and disconnected in a loop..

What is the problem here? VID/PID is unknown to the system or it does
not present itself correctly as known USB endpoint?

Any hints appreciated :-)

Best regards,


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