15 Mar
2010
15 Mar
'10
6:53 p.m.
On Mon, 2010-03-15 at 09:37 +0100, Adrian Knoth wrote:
It came with firmware 1.00 loaded. I did upgrade to 1.02 but I
doubt that it's necessary because I ran it on the 1.00 firmware before I
upgraded.
On Sun, Mar 14, 2010 at 07:46:09PM -0500, Jan Depner
wrote:
Hi!
Not really. It works fine on Windows with Cubase and I can still
run my DSP 2000 C-Port on Linux if I only need 10 channels.
I finally couldn't resist anymore so I bought
a TASCAM US-1641. At $299
FAIL. You now spend hours (and therefore money) on the software side. ;)
If anyone has
any advice to help me get started you can either post it
here or send to me off list (that will at least save everyone else
from
You're facing multiple problems:
* How to initialize the device. Firmware upload required?
* How to trigger special functions, i.e. a builtin
mixer?
Not too concerned about that.
* Which streaming format is used?
Now that is a good question ;-)
You could live without the second, but the other two are important.
It's basically what the FFADO project does for each firewire interface,
but with USB-2.0, each vendor implements his own on-wire protocol,
there's no common platform chip.
Yeah, what a PITA. It's like they all think they've come up with
something magical and they don't want anyone else to know.
So prepare for a lot of sniffing. (capture the packets
your windows
driver sends to the box and try to understand. There's isochronous
traffic for the audio streaming and non-iso (async) for device handling)
If nothing helps: run Windows in a VM (virtualbox?), make a USB
passthrough and then reroute the audio/midi ports via netjack (jackd2)
back to your Linux machine.
It didn't work well under VirtualBox. It only worked sporadically.
Don't know if wine can load drivers, if so, you
might be able to
debug/sniff the win driver directly.
Actually, there are a couple of USB sniffers for Windows that I'll
probably try.
In any case, help from your vendor would be a good
thing. Try to contact
him and ask for documentation. I bet the answer will be "We don't care
about Linux", but if so, please tell us. This way, others could avoid
buying Tascam in the future. ;)
I contacted TASCAM support last year and they were no help so I
wrote snail mail to the CEO of TASCAM America. No response yet nor do I
expect one.
Cheerio