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Date:      Sun, 24 Apr 2005 00:22:43 -0700
From:      Julian Elischer <julian@elischer.org>
To:        Kazuhito HONDA <kazuhito@ph.noda.tus.ac.jp>
Cc:        multimedia@freebsd.org
Subject:   Re: need help w/logitech 350 usb headset on 5.3-Stable
Message-ID:  <426B4943.7010201@elischer.org>
In-Reply-To: <20050424.143247.846931806.kazuhito@ph.noda.tus.ac.jp>
References:  <200504231701.58220.tlhingan1@optonline.net> <20050424.143247.846931806.kazuhito@ph.noda.tus.ac.jp>

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Kazuhito HONDA wrote:

> 
> 3. Is your USB controller ohci or uhci?
>    uhci has no problem. But ohci has the full duplex problem.
>    microphone and speaker can't be use simultaneously without full duplex.
>    Then a USB headset can't be use with ohci.

Has anyone tried ehci (with a 2.0 speed translating hub)?

> 
>    But if you want to use it as headphone only, or microphone only,
>    ohci has no problem.
> 



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