[linux-yocto] Keyboard on Beaglebone Black

[Bruce Ashfield]

On 14-06-24 07:06 AM, Kevin Hao wrote:
> On Tue, Jun 24, 2014 at 10:34:35AM +0800, Kevin Hao wrote:
>> On Mon, Jun 23, 2014 at 11:39:57AM -0400, Bruce Ashfield wrote:
>>> On 14-06-23 02:59 AM, Sven Vos wrote:
>>>> Hello,
>>>>
>>>> I am trying to get a Keyboard working on a Beaglebone Black. But after
>>>> building a non-custom core-image-minimal and running it on the
>>>> beaglebone black, i saw that the display works, but my keyboard doesnt.
>>>> I think it has something to do with the USB OTG but i have not a clue
>>>> what need to be done to get it work. Does anybody got it working yet?
>>>
>>> Kevin has been supporting the yocto BSP for us, so adding him on the
>>> cc'.
>>>
>>> That being said, I'm not sure if the BBB is in a lab environment for
>>> him, and hence no physical USB keyboard to use or test.
>>
>> I do have a BBB in hand. I will take a look at this issue.
>
> It seems that the usb drivers are built as modules by default. But the
> kernel-modules is not installed by default on core-image-minimal image.
> That's the reason why the usb keyboard can't work. So we have two options:
>    a) config usb drivers as built-in
>    b) install the kernel-modules on core-image-minimal
>
> I prefer to option (a) since it makes no sense to build them as modules for
> a specific BSP. But it seems that many drivers such as sound, display and usb
> are configured as modules in beaglebone.cfg. Do we have any special reason to
> do so? Should we convert all of them to built-in?

No special reason that I know of. I'm find with converting them to built-in.
Basic/core functionality is fine to include at all times!

Bruce

>
> Thanks,
> Kevin
>