From: Oliver Neukum <oneukum@suse.com>
To: Heikki Krogerus <heikki.krogerus@linux.intel.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 2/3] usb: type-c: USB Type-C Connector System Software Interface
Date: Tue, 16 Feb 2016 14:39:47 +0100 [thread overview]
Message-ID: <1455629987.4532.25.camel@suse.com> (raw)
In-Reply-To: <20160216092238.GA18565@kuha.fi.intel.com>
On Tue, 2016-02-16 at 11:22 +0200, Heikki Krogerus wrote:
> > That question has not been answered. It would be awkward for the OS
> > to find itself in the slave role, which it is ill equipped for. So
> > the data role should be switched before the new device is announced
> > to user space. How is that handled?
>
> In the class driver, once we add support for preselecting the role,
> when the connection happens we compare the initial role to the
> preselected one and execute swap if it differs. Only after that we
> notify userspace.
Yes, but we need an API. We can't keep adding to it. So if that
is to be supported, it needs to be defined now.
Regards
Oliver
next prev parent reply other threads:[~2016-02-16 13:42 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
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 [this message]
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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