uaudio patch, configurable buffer size
Kazuhito HONDA
kazuhito at ph.noda.tus.ac.jp
Tue Mar 8 02:57:58 GMT 2005
Hi,
From: Mathew Kanner <mat at cnd.mcgill.ca>
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:
http://docs.freebsd.org/cgi/getmsg.cgi?fetch=84345+0+archive/2005/freebsd-multimedia/20050206.freebsd-multimedia
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.
Regards,
Kazuhito HONDA
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