[alsa-devel] customized IOCTL in pcm platform driver.

gsantosh at codeaurora.org gsantosh at codeaurora.org
Tue Oct 9 08:44:40 CEST 2012


> At Mon, 8 Oct 2012 23:30:09 -0700 (PDT),
> gsantosh at codeaurora.org wrote:
>>
>> Hi All,
>>
>> will ALSA framework provide any customized IOCTL functionality in PCM
>> platform driver.
>
> No.
>
>> in my  system there is a requirement to get some information from DSP to
>> user space and I am thinking to add IOCTL's, is there any method to
>> accommodate or how we can address this issue?
>
> You can use hwdep device for any extra methods.

We need to tie this ioctl with the on going DSP session which will be
difficult When used with hwdep interface.

>
>
> Takashi
>




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