Does the xHCI driver has a spec violation?
Kohji Okuno
okuno.kohji at jp.panasonic.com
Mon Sep 22 06:53:15 UTC 2014
> On 09/22/14 08:31, Kohji Okuno wrote:
>> Hi HPS,
>>
>> Could you refer to the following document (4.6.6 Configure Endpoint:P.99)?
>> This document shows:
>>
>> If the Drop Context flag is `1' and the Add Context flag is `1', the xHC
>> shall:
>> o Release the current Resources and Bandwidth allocated to the
>> endpoint and assign the new Resources and Bandwidth requested for
>> the endpoint.
>>
>
> Hi,
>
> I see.
>
> Then what is missing to your patch is to mask away bits 0 and 1, because those
> are reserved for D0 and D1 and should be zero?
Hi, HPS,
You are correct, I think. We shold mask D0 and D1.
My host controller works both.
Thanks,
Kohji Okuno.
More information about the freebsd-usb
mailing list