Date: Wed, 5 Jun 2002 08:51:19 +0200 From: Richard =?utf-8?B?xIxlcGFz?= <rch@richard.eu.org> To: freebsd-multimedia@FreeBSD.ORG Subject: Re: A way to reset audio driver without reboot? Message-ID: <20020605065119.GA52174@richard.eu.org> In-Reply-To: <20020604153656.B40853@lns.com> References: <20020604214219.GI53811@richard.eu.org> <20020604153656.B40853@lns.com>
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On Tue Jun 4 15:36:56 2002 -0700 Tim Pozar wrote:
>On Tue, Jun 04, 2002 at 11:42:20PM +0200, Richard Cepas wrote:
>> Is there any way to reset audio device? I often end up in the situation when output to /dev/audio gives until reboot:
>> /dev/audio: Device busy
>> Neither lsof, fstat or ps show any programs left having using audio except /dev/mixer0.
>>
>> cat /dev/sndstat
>> FreeBSD Audio Driver (newpcm)
>> Installed devices:
>> pcm0: <SB16 DSP 4.16> at io 0x220 irq 5 drq 1:5 bufsz 4096d (1p/1r/0v channels duplex)
>>
>> card is AWE64
>
>I use lsof to see what may be attached to /dev/dsp...
>
># lsof /dev/dsp
>COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME
>mpg123 41043 pozar 4w VCHR 30,19 0t11124736 8484 /dev/dsp1
>
>Then just kill the PID.
>
The problem is that there is apparently nothing to kill but device is still busy:
$ lsof /dev/mixer /dev/sequencer /dev/dsp /dev/audio /dev/dspW /dev/music /dev/pss
lsof: WARNING: compiled for FreeBSD release 4.4-STABLE; this is 4.6-RC.
$ echo >/dev/audio
bash: /dev/audio: Device busy
Thanks,
Richard.
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