[alsa-devel] TASCAM US-1641

Daniel Mack daniel at caiaq.de
Wed Mar 24 23:50:20 CET 2010

On Wed, Mar 24, 2010 at 05:02:46PM -0500, Jan Depner wrote:
> On Wed, 2010-03-24 at 06:56 +0100, Daniel Mack wrote:
> > On Tue, Mar 23, 2010 at 08:34:43PM -0500, Jan Depner wrote:
> > I suggest adding some printk()s to the driver and see what it actually
> > does and which values it passes around. Most probably there is more
> > differences in the data format, and descriptors and/or message blocks
> > have different meanings for this hardware model.
> > 
>     I did as suggested and got back reasonable appearing numbers for
> rate, use_packsize, and period_frames of 44100, 36, and 256 respectively
> but am not sure how to relate this to my interface.  Is there some
> documentation somewhere that would explain the output of lsusb -v with
> respect to variable names in us122l.c.  My problem here is that I don't
> know what would actually be reasonable for this interface nor how to
> find out.

Sorry I can't really help here. I've never dealt with any TASCAM
interface, and I don't know how close they are to any USB class
interface. Maybe Karsten can tell us more about that. 

>     Many thanks for your help with this.  Karsten had asked me to get
> back with him if I got one of these but my email to him must have gone
> to the spam filter as I haven't heard anything.

Cc'ed him on this mail :)


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