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Date:      Thu, 14 Apr 2005 18:35:11 +0200
From:      Alexander Leidinger <Alexander@Leidinger.net>
To:        Mathew Kanner <mat@cnd.mcgill.ca>
Cc:        julian@elischer.org
Subject:   Re: de-dma uaudio
Message-ID:  <20050414183511.4o2rsij4k0coksck@netchild.homeip.net>
In-Reply-To: <20050414152146.GI2178@cnd.mcgill.ca>
References:  <20050410195645.GA2178@cnd.mcgill.ca> <20050414.021552.343134310.kazuhito@ph.noda.tus.ac.jp> <20050413172534.GF2178@cnd.mcgill.ca> <20050414161546.kwroviadwsw8k0w0@netchild.homeip.net> <20050414152146.GI2178@cnd.mcgill.ca>

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Mathew Kanner <mat@cnd.mcgill.ca> wrote:

>> Do I understand this patch right: it changes from DMA access to non-DMA
>> access?
>>
>> If yes: can someone please explain me why this is a good thing?
>
> 	Upper layer does not use DMA.  It just isn't use so why
> allocate special memeory for it.

And our USB stack ([eou]hci) can't ever grow the feature of doing DMA?

Bye,
Alexander.

-- 
http://www.Leidinger.net  Alexander @ Leidinger.net: PGP ID = B0063FE7
http://www.FreeBSD.org     netchild @ FreeBSD.org  : PGP ID = 72077137
Are we not men?




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