[alsa-devel] how to create alsa nodes?

loody miloody at gmail.com
Fri Mar 18 10:03:36 CET 2011


2011/3/17 Clemens Ladisch <clemens at ladisch.de>:
> 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.
it works, thank U :-)

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