Thanks Takashi. If the lib does not provide the API to read the device capabilitiess, is there a way for applications to directly read it from the Alsa kernel driver ? --- On Mon, 3/23/09, Takashi Iwai <tiwai@xxxxxxx> wrote: From: Takashi Iwai <tiwai@xxxxxxx> Subject: Re: How to find sampling rate supported To: "reetesh chandran" <reeteshchandran@xxxxxxxxx> Cc: alsa-devel@xxxxxxxxxxxxxxxx Date: Monday, March 23, 2009, 3:03 AM At Sun, 22 Mar 2009 09:00:00 -0700 (PDT), reetesh chandran wrote: > > Hi all, > > I am new to the group and to Alsa. > > For our project, we have to find the max sampling rate and other pcm hardware parameters that the connected USB headset supports. I looked at the alsa library, but could not find an API which returned this information. > > I found snd_pcm_hw_params_test_* function to test a specific value is supported, but I was wondering if there was a way to query the device to get the values. The min / max can be obtained via *_get_rate_min() and *_get_rate_max(), at least. The other detailed information can't be get except for testing the explicit value via *_test_rate(), so far. HTH, Takashi _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
