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From: Alan Cox <alan@lxorguk.ukuu.org.uk>
To: andy.green@linaro.org
Cc: andy@warmcat.com, Arnd Bergmann <arnd@arndb.de>,
	Benjamin Herrenschmidt <benh@kernel.crashing.org>,
	Nicolas Pitre <nicolas.pitre@linaro.org>,
	Jaswinder Singh <jaswinder.singh@linaro.org>,
	Linux USB list <linux-usb@vger.kernel.org>,
	lkml <linux-kernel@vger.kernel.org>,
	broonie@opensource.wolfsonmicro.com, roger.quadros@nokia.com,
	greg@kroah.com, grant.likely@secretlab.ca
Subject: Re: RFC: Platform data for onboard USB assets
Date: Wed, 23 Mar 2011 11:34:55 +0000	[thread overview]
Message-ID: <20110323113455.59492e24@lxorguk.ukuu.org.uk> (raw)
In-Reply-To: <4D89D5EB.50803@linaro.org>

> business to know, but that the usb device on the specific wired-up USB 
> port to the RJ45 soldered on the board should be guided a particular way 
> when the interface name is registered.  That can only be done properly 
> in-kernel by passing in a flag to usbnet specific to the device instance 
> to guide its choice.

To my mind the MAC case is a bit different to the name case. It's really
not about policy in that situation it's a USB widget with a non standard
"retrieve mac address" method.

You could fix it up in user space from firmware tables, or in either from
looking in your device tree.

There is one way you could actually hide all this in your board specific
gunge at the moment without touching the core kernel I think. Take a look
at how register_netdev_notifier() works.

That will give you a NETDEV_REGISTER event for each device being
registered so you can then pick out your usb network device.

It might need some slightly unclean knowledge of the usb net driver in
your glue but in the short term until there is a nice device tree type
answer it would allow you to get your MAC address set up properly I
think ?

Alan

  reply	other threads:[~2011-03-23 11:34 UTC|newest]

Thread overview: 156+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-03-11  9:50 RFC: Platform data for onboard USB assets Andy Green
2011-03-11 12:31 ` Arnd Bergmann
2011-03-11 12:44   ` Andy Green
2011-03-11 14:42     ` Roger Quadros
2011-03-11 15:12       ` Roger Quadros
2011-03-11 15:22       ` Arnd Bergmann
2011-03-11 15:50         ` Roger Quadros
2011-03-11 15:55           ` Arnd Bergmann
2011-03-11 15:29   ` Mark Brown
2011-03-11 15:54     ` Arnd Bergmann
2011-03-11 16:03       ` Mark Brown
2011-03-11 16:14         ` Greg KH
2011-03-11 16:27           ` Mark Brown
2011-03-11 16:35             ` Greg KH
2011-03-11 16:48               ` Mark Brown
2011-03-11 16:56                 ` Greg KH
2011-03-11 17:08                   ` Mark Brown
2011-03-11 17:23                     ` Greg KH
2011-03-11 17:41                       ` Mark Brown
2011-03-17  2:14                       ` Nicolas Pitre
2011-03-17 20:13                         ` Greg KH
2011-03-17 20:18                           ` Mark Brown
2011-03-17 20:26                             ` Greg KH
2011-03-17 21:24                               ` Mark Brown
2011-03-17 21:31                                 ` Greg KH
2011-03-17 21:40                                   ` Mark Brown
2011-03-17 21:47                                     ` Greg KH
2011-03-17 22:33                                       ` Arnd Bergmann
2011-03-17 22:53                                         ` Greg KH
2011-03-17 23:18                                           ` Andy Green
2011-03-17 23:25                                             ` Greg KH
2011-03-18  7:42                                               ` Andy Green
2011-03-18 22:54                                                 ` Benjamin Herrenschmidt
2011-03-18 22:57                                                   ` Andy Green
2011-03-18  4:54                                             ` Grant Likely
2011-03-18  8:19                                               ` Arnd Bergmann
2011-03-17 23:22                                         ` Andy Green
2011-03-18 15:00                                           ` Arnd Bergmann
2011-03-18 15:15                                             ` Mark Brown
2011-03-18 17:52                                             ` Andy Green
2011-03-18 18:20                                               ` David Anders
2011-03-18 18:25                                                 ` Mark Brown
2011-03-18 20:02                                                   ` Andy Green
2011-03-18 21:11                                                     ` Arnd Bergmann
2011-03-18 21:17                                                       ` Andy Green
2011-03-18 20:06                                               ` Arnd Bergmann
2011-03-18 21:33                                                 ` Andy Green
2011-03-18 23:25                                                   ` Mark Brown
2011-03-18 23:33                                                     ` Andy Green
2011-03-18 21:36                                                 ` Grant Likely
2011-03-18 22:47                                                 ` Benjamin Herrenschmidt
2011-03-18 21:28                                               ` Grant Likely
2011-03-18 23:04                                                 ` Andy Green
2011-03-18 22:37                                           ` Benjamin Herrenschmidt
2011-03-18 22:39                                             ` Andy Green
2011-03-17 23:27                                         ` Grant Likely
2011-03-18  7:49                                           ` Andy Green
2011-03-18  8:25                                             ` Arnd Bergmann
2011-03-18  8:38                                               ` Andy Green
2011-03-17 22:11                               ` Arnd Bergmann
2011-03-17 22:20                                 ` Greg KH
2011-03-18  8:42                                 ` Roger Quadros
2011-03-18  9:01                                   ` Arnd Bergmann
2011-03-18  9:55                                     ` Roger Quadros
2011-03-18 10:09                                       ` Andy Green
2011-03-17 21:03                           ` Nicolas Pitre
2011-03-17 21:32                             ` Greg KH
2011-03-11 16:26         ` Andy Green
2011-03-11 16:45           ` Alan Stern
2011-03-11 16:51             ` Andy Green
2011-03-11 17:08               ` Greg KH
2011-03-11 18:09                 ` Andy Green
2011-03-11 19:12                   ` Alan Stern
2011-03-11 20:05                     ` Andy Green
2011-03-11 20:21                       ` Greg KH
2011-03-11 21:07                         ` Andy Green
2011-03-11 21:44                           ` Greg KH
2011-03-11 22:24                             ` Andy Green
2011-03-12 16:00                             ` Alan Stern
2011-03-12 23:02                               ` Andy Green
2011-03-11 19:37                   ` Greg KH
2011-03-11 16:53             ` Mark Brown
2011-03-11 16:08 ` Greg KH
2011-03-11 16:20   ` Andy Green
2011-03-11 16:36     ` Greg KH
2011-03-11 16:41       ` Andy Green
2011-03-11 22:07         ` Benjamin Herrenschmidt
2011-03-11 21:52 ` Benjamin Herrenschmidt
2011-03-11 22:45 ` Grant Likely
2011-03-11 22:47   ` Andy Green
2011-03-11 23:39     ` Grant Likely
2011-03-14 14:54   ` Arnd Bergmann
2011-03-22 15:05 ` Jaswinder Singh
2011-03-22 16:04   ` Andy Green
2011-03-22 18:19     ` Jaswinder Singh
2011-03-22 18:37       ` Andy Green
2011-03-22 18:59         ` Jaswinder Singh
2011-03-22 19:35           ` Andy Green
     [not found] ` <AANLkTim=ezye=1fQP_1a2SWbPnbENP9B+k27Z3AkS=zf@mail.gmail.com>
2011-03-22 15:12   ` Mark Brown
2011-03-22 15:23     ` Jaswinder Singh
2011-03-24 18:56     ` Grant Likely
2011-03-22 21:08   ` Benjamin Herrenschmidt
2011-03-22 22:37     ` Andy Green
2011-03-23  1:03       ` Benjamin Herrenschmidt
2011-03-23  2:26         ` Nicolas Pitre
2011-03-23  3:23           ` Benjamin Herrenschmidt
2011-03-23  4:21             ` Nicolas Pitre
2011-03-23  4:56               ` Greg KH
2011-03-23  5:44               ` Benjamin Herrenschmidt
2011-03-23  9:38               ` Alan Cox
2011-03-23 10:53                 ` Mark Brown
2011-03-23 15:04                   ` Greg KH
2011-03-23 15:10                     ` Mark Brown
2011-03-23 15:24                     ` Andy Green
2011-03-23 15:45                       ` Arnd Bergmann
2011-03-23 15:38                     ` Nicolas Pitre
2011-03-23  9:31             ` Andy Green
2011-03-23  9:47               ` Alan Cox
2011-03-23 10:06                 ` Andy Green
2011-03-23 10:32                   ` Arnd Bergmann
2011-03-23 10:39                     ` Andy Green
2011-03-23 10:56                       ` Alan Cox
2011-03-23 11:13                         ` Andy Green
2011-03-23 11:34                           ` Alan Cox [this message]
2011-03-23 12:02                             ` Andy Green
2011-03-23 15:08                     ` Greg KH
2011-03-23 16:12                       ` Arnd Bergmann
2011-03-23 16:22                         ` Greg KH
2011-03-23 16:34                           ` Andy Green
2011-03-23 16:56                           ` [RFC] usbnet: use eth%d name for known ethernet devices Arnd Bergmann
2011-03-23 17:04                             ` Andy Green
2011-03-23 17:11                               ` Arnd Bergmann
2011-03-24 10:45                                 ` Andy Green
2011-03-23 17:13                             ` Arnd Bergmann
2011-03-23 17:54                               ` David Anders
2011-03-23 18:46                             ` Greg KH
2011-03-23 19:35                               ` Arnd Bergmann
     [not found]                                 ` <AANLkTim7hPfTv3gDYnh+jGxHBg0OvX=r1FKYoHnH7H_o@mail.gmail.com>
2011-03-23 19:57                                   ` Arnd Bergmann
2011-03-23 19:59                                     ` Randy Dunlap
2011-03-23 23:17                                       ` Michal Nazarewicz
2011-03-23 23:19                                         ` Randy Dunlap
2011-03-23 23:38                                         ` Steve Calfee
2011-03-24  0:01                                           ` Ben Hutchings
2011-03-24 13:13                                             ` Arnd Bergmann
2011-03-24 13:15                                               ` Arnd Bergmann
2011-03-24 13:44                                                 ` Andy Green
2011-03-24 13:56                                                 ` Alan Stern
2011-03-24 17:20                                                 ` Alexey Orishko
2011-03-25 11:57                                                   ` Arnd Bergmann
2011-03-25 16:26                                                     ` Alexey Orishko
2011-03-25 16:43                                                       ` Arnd Bergmann
2011-03-24 19:17                   ` RFC: Platform data for onboard USB assets Grant Likely
2011-03-24 20:10                     ` Andy Green
2011-03-23 14:55                 ` Nicolas Pitre
2011-03-23 10:22               ` Benjamin Herrenschmidt
2011-03-23 15:11                 ` Nicolas Pitre

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