linux-kernel - RE: USB type-C altmode support for UCSI

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <4df3faaee8904d81bf7737b5f2daaff5@ausx13mpc120.AMER.DELL.COM>
Date:   Wed, 5 Sep 2018 13:50:03 +0000
From:   <Mario.Limonciello@...l.com>
To:     <heikki.krogerus@...ux.intel.com>, <whitequark@...tequark.org>,
        <mika.westerberg@...ux.intel.com>
CC:     <linux-kernel@...r.kernel.org>
Subject: RE: USB type-C altmode support for UCSI

> > (There's also an UCSI bug where no notifications appear when connecting
> > a device, only when disconnecting and only once, but it can be worked
> > around by reloading the module, so it isn't critical. Not sure what's up
> > with that either.)
> 
> This is indeed a separate issue, and you are the second person that
> reports it. Either the (EC) firmware on those laptops is not
> generating the connection event as is should for some reason, or the
> EC driver in Linux kernel fails to deliver the event to the UCSI
> driver. I don't have XPS 13 that I could use to reproduce the issue
> unfortunately.
> 
> Mario! Can you help with this?
> 

I need to know which system this was and which BIOS FW package to try to reproduce
if I can pass this to the right people, 9360/9370?  Current FW?

Is this happening with all type-C devices?  Or just Thunderbolt?  Or (worse) just that
TBT device?