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From: Clemens Ladisch <clemens@ladisch.de>
To: loody <miloody@gmail.com>
Cc: alsa-devel@alsa-project.org
Subject: Re: how to create alsa nodes?
Date: Thu, 17 Mar 2011 15:26:32 +0100	[thread overview]
Message-ID: <4D821A18.30407@ladisch.de> (raw)
In-Reply-To: <AANLkTinUA1R-oGhQwykLiY0j7-MoB=4oJBMT=PQUTzY4@mail.gmail.com>

loody wrote:
> In destop x86 system, the udev will automatically create the nodes in
> snd directory, such as pcmC0D0c, pcmC0D1c, etc.
> I try to let the usb sound device work on mips platform, but I have no
> idea what is the proper way to create these nodes.
> Should I
> 1. create them one by one by hand  from copying the attributes in my PC
>     (if I have 2 or more usb sound devices, I have to first plug them
> in pc and monitor the nodes)

This will not work if the device nodes' minor numbers are allocated
dynamically.

> 2. smarter way to do so?

GregKH would tell you that the smart way would be to run udev.  ;-)

To use static device nodes,
1) make sure that CONFIG_SND_DYNAMIC_MINORS is disabled,
2) use the snddevices script in the alsa-driver package.


Regards,
Clemens

  reply	other threads:[~2011-03-17 14:24 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-03-17 14:12 how to create alsa nodes? loody
2011-03-17 14:26 ` Clemens Ladisch [this message]
2011-03-18  9:03   ` loody
2011-03-23  0:40     ` Connecting a codec to an i2c codec driver Steve Calfee
2011-03-23 11:07       ` Mark Brown
2011-03-23 13:22         ` Steve Calfee
2011-03-23 13:30           ` Mark Brown
2011-03-24 19:56             ` Steve Calfee
2011-03-25 11:43               ` Mark Brown
2013-02-12  8:17       ` emi62 (may be slightly off-topic) Karl Grill
2013-02-15 14:44         ` Takashi Iwai
2013-02-15 15:28           ` Monty Montgomery
2013-02-15 15:37             ` Monty Montgomery
2013-02-15 16:07               ` Takashi Iwai
2013-02-15 16:14                 ` Monty Montgomery
2013-02-15 16:26                   ` Takashi Iwai
2013-12-11  0:04                     ` Monty Montgomery
2013-12-11 14:34                       ` Takashi Iwai
2013-12-12  7:32                         ` Monty Montgomery
2013-12-12 17:11                           ` Takashi Iwai

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