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From: Khairil Yusof <kaeru@pd.jaring.my>
To: Christian Laursen <xi@borderworlds.dk>
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Date: Mon, 04 Apr 2005 19:21:50 +0800
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Subject: Re: 5.4-PRERELEASE usb audio problem
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On Sat, 2005-04-02 at 21:13 +0200, Christian Laursen wrote:
> When I plug in my Logitech USB headset I get the following:
>=20
> uaudio0: Logitech Logitech USB Headset, rev 1.10/1.13, addr 2
> uaudio_add_selector: NOT IMPLEMENTED
> uaudio0: audio rev 1.00
> pcm1: <USB Audio> on uaudio0
> pcm1: chn_init(pcm1:play:0) failed: err =3D 19
> pcm1: pcm_chn_create(ua_chan, 1, 0xc1974780) failed
> uhid0: Logitech Logitech USB Headset, rev 1.10/1.13, addr 2, iclass 1/1

Julian Elischer, posted a fix on freebsd-current@ some time ago.

Edit /usr/src/sys/dev/sound/usb/uaudio_pcm.c

Change,

#define UAUDIO_PCM_BUFF_SIZE    16*1024

to

#define UAUDIO_PCM_BUFF_SIZE    (16*1024-1)

This works for my Sony SRS-T10PC USB speakers. If it fixes it for other
usb audio devices, I think this fix should be committed.



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