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From: Heikki Krogerus <heikki.krogerus@linux.intel.com>
To: Oliver Neukum <oneukum@suse.com>
Cc: Felipe Balbi <balbi@kernel.org>,
	Mathias Nyman <mathias.nyman@linux.intel.com>,
	Greg KH <gregkh@linuxfoundation.org>,
	linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org
Subject: Re: [PATCH 1/3] usb: USB Type-C Connector Class
Date: Thu, 11 Feb 2016 16:51:32 +0200	[thread overview]
Message-ID: <20160211145132.GF32213@kuha.fi.intel.com> (raw)
In-Reply-To: <1455181694.3972.3.camel@suse.com>

On Thu, Feb 11, 2016 at 10:08:14AM +0100, Oliver Neukum wrote:
> I would think that user space should be able to preselect
> that we always want to be upstream or downstream or flexible.

Agreed.

> And it should be able to preemptively disallow power delivery
> even if no cable is present.

By power delivery you mean power sourcing, not USB PD, right? So
basically being able to preselect also power_role?

That is OK by me, but we need to remember that it's something that is
only possible when both our connector and also the partner support USB
PD. Otherwise the power role will be based on the data role. So when
USB PD is not supported, host is always the source and the device
always the sink.


Thanks,

-- 
heikki

  reply	other threads:[~2016-02-11 14:51 UTC|newest]

Thread overview: 90+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-02-09 17:01 [PATCH 0/3] usb: USB Type-C Class and driver for UCSI Heikki Krogerus
2016-02-09 17:01 ` [PATCH 1/3] usb: USB Type-C Connector Class Heikki Krogerus
2016-02-09 18:20   ` Greg KH
2016-02-10 10:38     ` Heikki Krogerus
2016-02-10 17:26       ` Greg KH
2016-02-11 14:07         ` Heikki Krogerus
2016-02-10 10:49   ` Oliver Neukum
2016-02-10 11:05     ` Andy Shevchenko
2016-02-10 11:11       ` Heikki Krogerus
2016-02-10 11:14         ` Andy Shevchenko
2016-02-10 11:23     ` Heikki Krogerus
2016-02-15 15:16       ` Oliver Neukum
2016-02-11  8:55     ` Felipe Balbi
2016-02-11  9:08       ` Oliver Neukum
2016-02-11 14:51         ` Heikki Krogerus [this message]
2016-02-11 14:36       ` Heikki Krogerus
2016-02-11 14:56         ` Oliver Neukum
2016-02-17 14:07   ` Oliver Neukum
2016-02-18  8:47     ` Heikki Krogerus
2016-02-18  9:21       ` Oliver Neukum
2016-02-18 13:09         ` Heikki Krogerus
2016-02-18  9:35       ` Oliver Neukum
2016-02-18 13:25         ` Heikki Krogerus
2016-02-18 13:44           ` Oliver Neukum
2016-02-18 15:13             ` Heikki Krogerus
2016-02-26 13:09             ` Heikki Krogerus
2016-02-09 17:01 ` [PATCH 2/3] usb: type-c: USB Type-C Connector System Software Interface Heikki Krogerus
2016-02-09 18:21   ` Greg KH
2016-02-10 10:30     ` Heikki Krogerus
2016-02-10 17:20       ` Greg KH
2016-02-11 13:50         ` Heikki Krogerus
2016-02-15 15:30           ` Oliver Neukum
2016-02-16  9:22             ` Heikki Krogerus
2016-02-16 13:39               ` Oliver Neukum
2016-02-17  7:58                 ` Heikki Krogerus
2016-02-17  9:03                   ` Oliver Neukum
2016-02-17 10:29                     ` Felipe Balbi
2016-02-17 10:36                       ` Oliver Neukum
2016-02-17 11:11                         ` Heikki Krogerus
2016-02-17 13:36                           ` Felipe Balbi
2016-02-17 14:28                             ` Heikki Krogerus
2016-02-18  9:07                               ` Peter Chen
2016-02-18 10:44                                 ` Heikki Krogerus
2016-02-18 10:37                               ` Rajaram R
2016-02-18 10:47                                 ` Heikki Krogerus
2016-02-18 11:06                                   ` Rajaram R
2016-02-17 13:34                         ` Felipe Balbi
2016-02-17 13:51                           ` Oliver Neukum
2016-02-18  7:08                             ` Felipe Balbi
2016-02-18 10:18                               ` Oliver Neukum
2016-02-18 10:30                                 ` Felipe Balbi
2016-02-18 10:40                                   ` Oliver Neukum
2016-02-18  9:29       ` Peter Chen
2016-02-18  9:44         ` Oliver Neukum
2016-02-10 11:19   ` Oliver Neukum
2016-02-10 12:04     ` Heikki Krogerus
2016-02-10 11:56   ` Andy Shevchenko
2016-02-10 13:21     ` Oliver Neukum
2016-02-10 14:02       ` Andy Shevchenko
2016-02-10 15:11         ` Bjørn Mork
2016-02-11  8:26           ` Andy Shevchenko
2016-02-11  8:59             ` Bjørn Mork
2016-02-10 14:15     ` Oliver Neukum
2016-02-10 14:24       ` Andy Shevchenko
2016-02-10 15:08         ` Oliver Neukum
     [not found]           ` <CAHp75VfmGsskf7Cmni3b4=tCbkPsR8d3jPYiv93Lm6DM9gq1-g@mail.gmail.com>
2016-02-11  8:13             ` Fwd: " Andy Shevchenko
2016-02-11 14:10               ` Heikki Krogerus
2016-02-10 13:04   ` Oliver Neukum
2016-02-11 14:08     ` Heikki Krogerus
2016-02-09 17:01 ` [PATCH 3/3] usb: type-c: UCSI ACPI driver Heikki Krogerus
2016-02-09 18:22   ` Greg KH
2016-02-10 10:23     ` Heikki Krogerus
2016-02-17 18:53 ` [PATCH 0/3] usb: USB Type-C Class and driver for UCSI Oliver Neukum
2016-02-18  9:21   ` Heikki Krogerus
2016-02-17 19:34 ` Rajaram R
2016-02-18 11:05   ` Heikki Krogerus
2016-02-18 11:15     ` Oliver Neukum
2016-05-05  3:05 ` Guenter Roeck
2016-05-06  6:50   ` Felipe Balbi
2016-05-06  8:05     ` Guenter Roeck
2016-05-06  8:29       ` Heikki Krogerus
2016-05-06 14:10         ` Guenter Roeck
2016-05-06  8:23     ` Heikki Krogerus
2016-05-06  8:08   ` Heikki Krogerus
2016-05-06 14:08     ` Guenter Roeck
2016-05-11  3:14     ` Guenter Roeck
2016-05-11  9:40       ` Heikki Krogerus
2016-05-11 14:47         ` Guenter Roeck
2016-05-13 14:23           ` Heikki Krogerus
2016-05-13 17:48             ` Guenter Roeck

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