On 2012/6/15 22:26, Alan Stern wrote:
On Fri, 15 Jun 2012, Lan Tianyu wrote:
But I have an another question. Greg suggested to make the usb port
to be a real device, This maybe a tough task. E.G How to deal with relation among
hub, port and children and other problems. It will take a lot of time to discuss
and investigation.
I think we shouldn't worry about any of that stuff. Let's keep the
relations the same as they are now.
I wonder it is possible for me to finish usb port power off mechanism firstly
(I have done it for a lot of time.(T_T)) and then make port a real device?
We can keep sysfs hierarchy same.
That's up to Greg.
A proposal of making port a real device. Can we divide the whole project into
two steps?
First is to create port devices under the hub device, don't change the relation
among
hub, ports and children.
Second is to deal with their relation. Move the children under port devices.
In my opinion the children shouldn't be moved. In some sense they are
already in the wrong place: A child's parent should be the hub
interface, not the hub device.
Ok. So we current should just create port devices under hub interface,
right?
Greg, do you have some comments on this?
Alan Stern
--
Best Regards
Tianyu Lan
linux kernel enabling team
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