Question on PCM formats

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Hi,
I was looking in http://www.alsa-project.org/alsa-doc/alsa-lib/pcm.html
and I have some questions regarding the PCM format paragraph:

Q1: I think the sentence:
"...but the sample is stored in low three bits."
Should be
"...but the sample is stored in low three bytes."

Q2: What is the meaning of "full range" in the sentence:
"Some hardware does not support processing of full range"?

Q3: I'm working with kernel 2.6.12.6 and I could not find the
snd_pcm_hw_params_get_sbits() function there. In which kernel version
can I find it?

Q4: Working with 2.6.12.6 kernel, how can I solve the problem of the
ICE1712? How do I tell the stack where is the sound sample bit start
inside the 32-bit frame? 



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