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

Takashi Iwai tiwai at suse.de
Tue Oct 9 08:40:25 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.


> 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.


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