From: Oliver Neukum <oneukum@suse.com>
To: Guenter Roeck <linux@roeck-us.net>
Cc: Heikki Krogerus <heikki.krogerus@linux.intel.com>,
Greg KH <gregkh@linuxfoundation.org>,
Bin Gao <bin.gao@linux.intel.com>,
Felipe Balbi <felipe.balbi@linux.intel.com>,
linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org
Subject: Re: [PATHCv10 1/2] usb: USB Type-C connector class
Date: Wed, 16 Nov 2016 09:47:45 +0100 [thread overview]
Message-ID: <1479286065.2000.1.camel@suse.com> (raw)
In-Reply-To: <97125354-6634-9d2b-983b-83f73faf1078@roeck-us.net>
On Mon, 2016-11-14 at 06:34 -0800, Guenter Roeck wrote:
> >>> +int typec_connect(struct typec_port *port, struct
> typec_connection *con)
> >>> +{
> >>> + int ret;
> >>> +
> >>> + if (!con->partner && !con->cable)
> >>> + return -EINVAL;
> >>> +
> >>> + port->connected = 1;
> >>> + port->data_role = con->data_role;
> >>> + port->pwr_role = con->pwr_role;
> >>> + port->vconn_role = con->vconn_role;
> >>> + port->pwr_opmode = con->pwr_opmode;
> >>> +
> >>> + kobject_uevent(&port->dev.kobj, KOBJ_CHANGE);
> >>
> >> This worries me. Who is listening for it? What will you do with
> it?
> >> Shouldn't you just poll on an attribute file instead?
> >
> > Oliver! Did you need this or can we remove it?
> >
>
> I'll also have to make sure that the Android folks don't use it.
How then do we notify user space? poll()? Yet another demon.
I do not specifically need this, but I note that uevents are the
general tool we use to notify user space of that kind of events.
Regards
Oliver
next prev parent reply other threads:[~2016-11-16 8:53 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-09-19 11:16 [PATHCv10 0/2] USB Type-C Connector class Heikki Krogerus
2016-09-19 11:16 ` [PATHCv10 1/2] usb: USB Type-C connector class Heikki Krogerus
2016-11-14 9:51 ` Greg KH
2016-11-14 12:32 ` Heikki Krogerus
2016-11-14 14:11 ` Greg KH
2016-11-14 14:39 ` Heikki Krogerus
2016-11-14 15:08 ` Greg KH
2016-11-14 14:34 ` Guenter Roeck
2016-11-16 8:47 ` Oliver Neukum [this message]
2016-11-14 20:46 ` Guenter Roeck
2016-11-15 7:07 ` Greg KH
2016-11-15 9:25 ` Guenter Roeck
2016-11-16 0:19 ` Badhri Jagan Sridharan
2016-11-16 9:30 ` Heikki Krogerus
2016-11-16 9:39 ` Oliver Neukum
2016-11-16 9:49 ` Greg KH
2016-11-16 11:09 ` Heikki Krogerus
2016-11-16 11:27 ` Oliver Neukum
2016-11-16 14:30 ` Badhri Jagan Sridharan
2016-11-16 14:43 ` Heikki Krogerus
2016-11-16 15:20 ` Heikki Krogerus
2016-11-16 15:25 ` Badhri Jagan Sridharan
2016-11-16 15:31 ` Greg KH
2016-11-17 8:28 ` Heikki Krogerus
2016-09-19 11:16 ` [PATHCv10 2/2] usb: typec: add driver for Intel Whiskey Cove PMIC USB Type-C PHY Heikki Krogerus
2016-11-10 21:36 ` [PATHCv10 0/2] USB Type-C Connector class Guenter Roeck
2016-11-11 11:04 ` Heikki Krogerus
2016-11-14 7:46 ` Greg KH
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