From: Benjamin Herrenschmidt <benh-XVmvHMARGAS8U2dJNN8I7kB+6BGkLq7r@public.gmane.org>
To: andy.green-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org
Cc: Nicolas Pitre
<nicolas.pitre-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>,
Linux USB list
<linux-usb-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
Greg KH <greg-U8xfFu+wG4EAvxtiuMwx3w@public.gmane.org>,
devicetree-discuss-uLR06cmDAlY/bJ5BZ2RsiQ@public.gmane.org,
Mark Brown
<broonie-yzvPICuk2AATkU/dhu1WVueM+bqZidxxQQ4Iyu8u01E@public.gmane.org>,
lkml <linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>
Subject: Re: RFC: Platform data for onboard USB assets
Date: Sat, 19 Mar 2011 09:37:43 +1100 [thread overview]
Message-ID: <1300487863.22236.1289.camel@pasglop> (raw)
In-Reply-To: <4D82979B.2050003-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
On Thu, 2011-03-17 at 23:22 +0000, Andy Green wrote:
>
> Is there actually a need for sort of not platform_data but universal
> vid_pid_specific_usb_device_option_data coming from the board
> definition
> file or bootloader for *pluggable* usb devices? udev seems to be
> well
> established doing that already in a generic, not-platform-specific
> way
> that can go in all distros and so on nicely. Maybe this is just my
> impoverished imagination and people do want, say, some kinds of USB
> mice
> to operate at higher DPI or whatever when plugged in a specific board
> because it is that board.
Except that vid/pid are the -WRONG- way to do that. Your device is
on-board, the proper way to identify it uniquely is it's topological
location, ie path of HW port numbers.
Cheers,
Ben.
next prev parent reply other threads:[~2011-03-18 22:37 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20110311165642.GA9996@kroah.com>
[not found] ` <20110317214042.GQ31411@opensource.wolfsonmicro.com>
[not found] ` <20110317214736.GA29014@kroah.com>
[not found] ` <20110317214736.GA29014-U8xfFu+wG4EAvxtiuMwx3w@public.gmane.org>
2011-03-17 22:33 ` RFC: Platform data for onboard USB assets Arnd Bergmann
[not found] ` <201103172333.01474.arnd-r2nGTMty4D4@public.gmane.org>
2011-03-17 22:53 ` Greg KH
[not found] ` <20110317225328.GB31581-U8xfFu+wG4EAvxtiuMwx3w@public.gmane.org>
2011-03-17 23:18 ` Andy Green
2011-03-17 23:25 ` Greg KH
[not found] ` <20110317232503.GA14561-U8xfFu+wG4EAvxtiuMwx3w@public.gmane.org>
2011-03-18 7:42 ` Andy Green
[not found] ` <4D830CEC.4040608-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
2011-03-18 22:54 ` Benjamin Herrenschmidt
2011-03-18 22:57 ` Andy Green
[not found] ` <4D8296D1.9060106-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
2011-03-18 4:54 ` Grant Likely
[not found] ` <20110318045401.GA18545-MrY2KI0G/OVr83L8+7iqerDks+cytr/Z@public.gmane.org>
2011-03-18 8:19 ` Arnd Bergmann
2011-03-17 23:27 ` Grant Likely
2011-03-18 7:49 ` Andy Green
[not found] ` <4D830E97.4010403-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
2011-03-18 8:25 ` Arnd Bergmann
[not found] ` <201103180925.30074.arnd-r2nGTMty4D4@public.gmane.org>
2011-03-18 8:38 ` Andy Green
2011-03-17 23:22 ` Andy Green
[not found] ` <4D82979B.2050003-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
2011-03-18 15:00 ` Arnd Bergmann
[not found] ` <201103181600.09877.arnd-r2nGTMty4D4@public.gmane.org>
2011-03-18 15:15 ` Mark Brown
2011-03-18 17:52 ` Andy Green
[not found] ` <4D839BCD.6030202-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
2011-03-18 18:20 ` David Anders
[not found] ` <4D83A25C.804-l0cyMroinI0@public.gmane.org>
2011-03-18 18:25 ` Mark Brown
[not found] ` <20110318182518.GA2271-yzvPICuk2AATkU/dhu1WVueM+bqZidxxQQ4Iyu8u01E@public.gmane.org>
2011-03-18 20:02 ` Andy Green
2011-03-18 21:11 ` Arnd Bergmann
[not found] ` <201103182211.36869.arnd-r2nGTMty4D4@public.gmane.org>
2011-03-18 21:17 ` Andy Green
2011-03-18 20:06 ` Arnd Bergmann
2011-03-18 21:33 ` Andy Green
[not found] ` <4D83CF8C.3020605-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
2011-03-18 23:25 ` Mark Brown
[not found] ` <20110318232553.GA11422-yzvPICuk2AATkU/dhu1WVueM+bqZidxxQQ4Iyu8u01E@public.gmane.org>
2011-03-18 23:33 ` Andy Green
[not found] ` <201103182106.13888.arnd-r2nGTMty4D4@public.gmane.org>
2011-03-18 21:36 ` Grant Likely
2011-03-18 22:47 ` Benjamin Herrenschmidt
2011-03-18 21:28 ` Grant Likely
[not found] ` <AANLkTi=Vy4Cu9rf7SpOFL1umN37bJgXhq9jEQpUrqjgw-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2011-03-18 23:04 ` Andy Green
2011-03-18 22:37 ` Benjamin Herrenschmidt [this message]
2011-03-18 22:39 ` Andy Green
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