Remove an old description.
This behavior was modified in sys/dev/audio/audio.c rev 1.65 (Mar. 2020).
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.\" $NetBSD: audio.4,v 1.103 2020/03/28 05:47:41 wiz Exp $
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.\" $NetBSD: audio.4,v 1.104 2020/12/09 05:48:56 isaki Exp $
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.\"
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.\"
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.\" Copyright (c) 1996 The NetBSD Foundation, Inc.
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.\" Copyright (c) 1996 The NetBSD Foundation, Inc.
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.\" All rights reserved.
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.\" All rights reserved.
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@ -85,8 +85,6 @@ are identical.
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.Pp
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.Pp
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On a full-duplex device, reads and writes may operate concurrently
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On a full-duplex device, reads and writes may operate concurrently
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without interference.
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without interference.
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If a full-duplex capable audio device is opened for both reading and writing
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it will start in play mode but not start in record mode.
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.Pp
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.Pp
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On a half-duplex device, if there are any recording descriptors already,
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On a half-duplex device, if there are any recording descriptors already,
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opening with write mode will fail.
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opening with write mode will fail.
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