[PATCH] UWB support for HAL

[Perez-Gonzalez, Inaky]

>From: Marcel Holtmann [mailto:marcel at holtmann.org] 
>Hi Claudio,
>
>> Considering that the Addon singleton patcheset was integrated, it is
>> time to push the UWB support.

Cool, thanks for working on this :)

>> Following the Marcel's suggestion I am splitting the patch. Here is
>> the initial patch to identify the UWB radio controller.
>> 
>> It still unclear for me how organize/export the UWB
>> capabilities/categories. One adapter can support WUSB, Winet/WLP(IP)
>> and in the future other protocols. Suggestions are welcome!
>
>I think the kernel has to better export the UMC interfaces and its
>capabilities to use.

Why? there is no need for that. Interfaces/instances that are
children of a single device already have the parent definitions.
UMC should be as hidden as possible.

>> For the host controller part, which properties should be exported?
>> (bandwidth availability, beacon/scan status, events statistics,...)
>
>Don't expose to much at the start. The HAL properties are 
>considered API
>and you wanna try to keep that small in the beginning. Extending it is
>easy. Removing or renaming is problematic.

And bw allocation still is not clear; can't get devices that support
it properly yet :(

BTW, in the future we might have to do away without /sys/class/uwb_host
[as the class support is removed]. Bear in mind!