Date: Mon, 22 Sep 2014 08:41:57 +0200 From: Hans Petter Selasky <hps@selasky.org> To: Kohji Okuno <okuno.kohji@jp.panasonic.com> Cc: freebsd-current@freebsd.org, freebsd-usb@freebsd.org Subject: Re: Does the xHCI driver has a spec violation? Message-ID: <541FC4B5.2030406@selasky.org> In-Reply-To: <20140922.153122.2173639902447525862.okuno.kohji@jp.panasonic.com> References: <20140922.135800.1954695532570247771.okuno.kohji@jp.panasonic.com> <541FBB84.6050508@selasky.org> <20140922.153122.2173639902447525862.okuno.kohji@jp.panasonic.com>
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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? --HPS
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