Hi Rob,
First, the point of this patch was to provide a way for userspace (program,
command line interface, whatever -- that is orthogonal) to ensure that its
view of the devicetree via /proc/device-tree/ is consistent since an overlay
apply or remove can alter the devicetree.
For in-kernel use,
On 10/19/18 9:06 AM, Rob Herring wrote:
> On Thu, Oct 18, 2018 at 7:06 PM Frank Rowand wrote:
>>
>> On 10/18/18 12:32, Rob Herring wrote:
>>> On Tue, Oct 16, 2018 at 05:34:26PM -0700, frowand.l...@gmail.com wrote:
From: Frank Rowand
When an overlay is applied or removed, the live d
On Thu, Oct 18, 2018 at 7:06 PM Frank Rowand wrote:
>
> On 10/18/18 12:32, Rob Herring wrote:
> > On Tue, Oct 16, 2018 at 05:34:26PM -0700, frowand.l...@gmail.com wrote:
> >> From: Frank Rowand
> >>
> >> When an overlay is applied or removed, the live devicetree visible in
> >> /proc/device-tree/
Hi Frank,
On Fri, Oct 19, 2018 at 2:06 AM Frank Rowand wrote:
> On 10/18/18 12:32, Rob Herring wrote:
> > On Tue, Oct 16, 2018 at 05:34:26PM -0700, frowand.l...@gmail.com wrote:
> >> Provide a sysfs file, /sys/firmware/devicetree/tree_version, to allow
> >> user space to determine if the live de
On 10/18/18 12:32, Rob Herring wrote:
> On Tue, Oct 16, 2018 at 05:34:26PM -0700, frowand.l...@gmail.com wrote:
>> From: Frank Rowand
>>
>> When an overlay is applied or removed, the live devicetree visible in
>> /proc/device-tree/, aka /sys/firmware/devicetree/base/, reflects the
>> changes. The
On Tue, Oct 16, 2018 at 05:34:26PM -0700, frowand.l...@gmail.com wrote:
> From: Frank Rowand
>
> When an overlay is applied or removed, the live devicetree visible in
> /proc/device-tree/, aka /sys/firmware/devicetree/base/, reflects the
> changes. There is no method for user space to determine
From: Frank Rowand
When an overlay is applied or removed, the live devicetree visible in
/proc/device-tree/, aka /sys/firmware/devicetree/base/, reflects the
changes. There is no method for user space to determine whether the
live devicetree was modified by overlay actions.
Provide a sysfs file
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