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Message-ID: <BANLkTim9_n85ahW781fGjf_iofhBjnD36w@mail.gmail.com>
Date: Tue, 19 Apr 2011 09:45:10 -0600
From: Grant Likely <grant.likely@...retlab.ca>
To: Arnd Bergmann <arnd@...db.de>
Cc: John Williams <john.williams@...alogix.com>,
Wolfram Sang <w.sang@...gutronix.de>,
Michal Simek <monstr@...str.eu>,
devicetree-discuss@...ts.ozlabs.org, linux-kernel@...r.kernel.org,
hjk@...sjkoch.de
Subject: Re: [PATCH v3] uio/pdrv_genirq: Add OF support
On Tue, Apr 19, 2011 at 9:07 AM, Arnd Bergmann <arnd@...db.de> wrote:
> On Tuesday 19 April 2011, Grant Likely wrote:
>> > or whatever, as this would bind all instances matching vendor,device.
>> >
>> > So, the question I have is, how to handle bind per-instance?
>>
>> By manipulating a property on the device instance of course! :-)
>>
>> Something like: echo "generic-uio" >>
>> /sys/devices/path/to/device/a-property-that-changes-the-driver-it-will-bind-to.
>>
>
> But what code would create that in sysfs, and based on what properties
> of the device? Should we do that for every platform device, or perhaps
> for every one that has any resources?
Yes, I think it can be a generic facility for all platform_devices.
We already have some code to support user-space manipulated driver
binding/unbinding. This is very much in the same vein.
g.
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