uaudio patch, configurable buffer size

Kazuhito HONDA kazuhito at
Tue Mar 8 02:57:58 GMT 2005


From: Mathew Kanner <mat at>
Subject: Re: uaudio patch, configurable buffer size
Date: Sun, 6 Mar 2005 22:28:23 -0500

> 	Per your other e-mail, as present in the source, is having the
> default size of 16*1024 and doing bus_dma_tag_create with a maxsegz of
> 0x3fff (16*1024-1) a bug?

I think so.  please see PR kern/74893 and this:

By the way, I agree with you on the tunable buffersize for USB audio.
According to my experience, however, 
if the buffer size can't be divided by 4, 
left and right channels interchange for a stereo sound source.  

Kazuhito HONDA

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