From: Guenter Roeck <linux@roeck-us.net>
To: Oliver Neukum <oneukum@suse.com>
Cc: Heikki Krogerus <heikki.krogerus@linux.intel.com>,
Andy Shevchenko <andy.shevchenko@gmail.com>,
Rajaram R <rajaram.officemail@gmail.com>,
Felipe Balbi <felipe.balbi@linux.intel.com>,
Mathias Nyman <mathias.nyman@linux.intel.com>,
Greg KH <gregkh@linuxfoundation.org>,
linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org
Subject: Re: [RFC PATCHv2] usb: USB Type-C Connector Class
Date: Wed, 1 Jun 2016 23:37:50 -0700 [thread overview]
Message-ID: <574FD43E.9080305@roeck-us.net> (raw)
In-Reply-To: <1464848668.8527.2.camel@suse.com>
On 06/01/2016 11:24 PM, Oliver Neukum wrote:
> On Wed, 2016-06-01 at 06:34 -0700, Guenter Roeck wrote:
>> The class code would not explicitly learn about the reset,
>> but it would be informed about the exited modes.
>
> That has drawbacks
>
Playing devils advocate a bit here
> - it doesn't tell you what caused the mode to be left (if you
> UFP, it may be the regular command)
Does it matter ?
> - it is a race against your own command
It is my understanding that races have to be resolved by the drivers,
since the typec code does not do any locking. This is quite similar
to handling, say, a request to change the vconn source or to change
the power role. Am I missing something ?
> - it does not work if you are in basic USB mode
>
Would alternate modes be active in that case ?
Thanks,
Guenter
next prev parent reply other threads:[~2016-06-02 6:38 UTC|newest]
Thread overview: 98+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-05-19 12:44 [RFC PATCHv2] usb: USB Type-C Connector Class Heikki Krogerus
2016-05-19 14:47 ` Oliver Neukum
2016-05-20 11:24 ` Heikki Krogerus
2016-05-20 13:37 ` Oliver Neukum
2016-05-21 5:51 ` Guenter Roeck
2016-05-21 6:43 ` Oliver Neukum
2016-05-22 15:54 ` Guenter Roeck
2016-05-23 5:34 ` Oliver Neukum
2016-05-23 13:27 ` Guenter Roeck
2016-05-23 13:58 ` Oliver Neukum
2016-05-23 14:43 ` Guenter Roeck
2016-05-23 15:55 ` Oliver Neukum
2016-05-23 16:52 ` Guenter Roeck
2016-05-24 10:08 ` Heikki Krogerus
2016-05-24 10:18 ` Oliver Neukum
2016-05-24 11:04 ` Heikki Krogerus
2016-05-19 14:48 ` Oliver Neukum
2016-05-19 15:43 ` Greg KH
2016-05-20 10:58 ` Heikki Krogerus
2016-05-19 17:53 ` Guenter Roeck
2016-05-20 10:47 ` Heikki Krogerus
2016-05-20 17:02 ` Guenter Roeck
2016-05-23 9:23 ` Heikki Krogerus
2016-05-20 14:19 ` Oliver Neukum
2016-05-23 9:57 ` Heikki Krogerus
2016-05-23 11:25 ` Oliver Neukum
2016-05-23 17:09 ` Guenter Roeck
2016-05-24 9:06 ` Oliver Neukum
2016-05-24 9:32 ` Heikki Krogerus
2016-05-24 12:51 ` Oliver Neukum
2016-05-25 11:28 ` Heikki Krogerus
2016-05-25 15:19 ` Guenter Roeck
2016-05-27 7:30 ` Heikki Krogerus
2016-05-24 13:42 ` Guenter Roeck
2016-05-25 11:30 ` Heikki Krogerus
2016-05-25 13:12 ` Guenter Roeck
2016-05-24 19:28 ` Guenter Roeck
2016-05-25 11:51 ` Heikki Krogerus
2016-05-25 13:21 ` Guenter Roeck
2016-05-25 14:04 ` Heikki Krogerus
2016-05-25 14:20 ` Oliver Neukum
2016-05-25 14:59 ` Guenter Roeck
2016-05-27 7:29 ` Heikki Krogerus
2016-05-25 18:35 ` [RFC PATCH] usb: typec: Various API updates and fixes Guenter Roeck
2016-05-27 7:55 ` Heikki Krogerus
2016-05-27 14:06 ` Guenter Roeck
2016-05-30 12:48 ` Heikki Krogerus
2016-05-30 13:19 ` [RFC PATCHv2] usb: USB Type-C Connector Class Heikki Krogerus
2016-05-30 13:59 ` Oliver Neukum
2016-05-31 8:31 ` Heikki Krogerus
2016-05-31 8:48 ` Oliver Neukum
2016-05-31 12:09 ` Heikki Krogerus
2016-05-31 12:43 ` Heikki Krogerus
2016-05-31 17:20 ` Guenter Roeck
2016-06-01 8:23 ` Heikki Krogerus
2016-06-01 8:31 ` Oliver Neukum
2016-06-01 9:04 ` Oliver Neukum
2016-06-01 13:34 ` Guenter Roeck
2016-06-02 6:24 ` Oliver Neukum
2016-06-02 6:37 ` Guenter Roeck [this message]
2016-06-02 7:43 ` Oliver Neukum
2016-05-31 17:14 ` Guenter Roeck
2016-06-01 9:26 ` Oliver Neukum
2016-06-01 23:29 ` Guenter Roeck
2016-06-02 6:30 ` Oliver Neukum
2016-06-02 8:27 ` Heikki Krogerus
2016-06-02 10:18 ` Heikki Krogerus
2016-06-02 16:12 ` Guenter Roeck
2016-06-03 13:21 ` Heikki Krogerus
2016-06-03 13:51 ` Guenter Roeck
2016-06-03 15:17 ` Heikki Krogerus
2016-06-03 18:39 ` Guenter Roeck
2016-06-06 13:28 ` Heikki Krogerus
2016-06-06 13:35 ` Oliver Neukum
2016-06-07 8:23 ` Heikki Krogerus
2016-06-07 16:57 ` Guenter Roeck
2016-06-02 8:02 ` Heikki Krogerus
2016-06-03 20:20 ` Pavel Machek
2016-06-06 13:45 ` Heikki Krogerus
2016-06-06 14:41 ` Greg KH
2016-06-07 8:25 ` Heikki Krogerus
2016-06-06 16:02 ` Guenter Roeck
2016-06-10 14:34 ` [RFC PATCHv3] " Heikki Krogerus
2016-06-11 7:05 ` Oliver Neukum
2016-06-11 18:03 ` Guenter Roeck
2016-06-13 7:49 ` Heikki Krogerus
2016-06-13 7:48 ` Heikki Krogerus
2016-06-21 13:08 ` [RFC PATCHv2] " Oliver Neukum
2016-06-21 13:24 ` Guenter Roeck
2016-06-21 19:43 ` Oliver Neukum
2016-06-21 21:37 ` Guenter Roeck
2016-06-21 13:58 ` Heikki Krogerus
2016-06-21 20:43 ` Oliver Neukum
2016-06-22 9:31 ` Heikki Krogerus
2016-06-22 10:08 ` Oliver Neukum
2016-06-22 11:19 ` Heikki Krogerus
2016-08-07 21:37 ` Pavel Machek
2016-08-08 8:52 ` Oliver Neukum
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