[App_rpt-users] I'm back after 8 years, quick Audio interface question.

Pierre Martel petem001 at gmail.com
Tue Dec 4 23:17:21 EST 2018


I have tried a few usb sound card that were not cm108/9 chips and was not
able to make it work even if it had the correct driver either as kernel
module or compiled into the kernel


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Le mar. 4 déc. 2018 à 16:50, Mike <mm at midnighteng.com> a écrit :

> Steve,
> While I have never tried it,
> I have always suspected if you usd the correct usb hub/device
> id/position and had the correct driver in the system, it would work.
>
> Wanted to do so myself but I have stacks of those CM108'S and use
> parallel port for all the switching.
>
> I don't think you need to write anything for the sound driver with no
> use of in/out pins. Just have the right driver for the device in the
> system.
>
> Sounds like a winter idea project revisited for me without good reason
> but I bet you will try it before me and let us know.
> Should be test to test but I haven't any other usb sound devices.
>
> Perhaps I am wrong about that but it seems to make sense as I see it.
>
> ...mike/kb8jnm
>
>
> On 12/4/2018 3:41 PM, Steve Gladden wrote:
> > Hi I've not been on in about 7.5 years.
> > Back then Jim Dixon was a regular contact and somebody I chatted with
> fairly often.
> > So sad he is gone!
> >
> > Way back then the only supported simple sound interface was USB and
> required a CM108 or 109 chip and the idea of using anything else
> soundcardwise
> > was just immediately shot down if asked.
> > There were reasons (back then) for this and I think it was centered
> around the author not wanting to have to deal with the issues and support
> of it.
> >
> > I never cared about support or "all of the issues" it may cause on my
> end but lacked the technical know-how to write a "generic" audio driver
> myself.
> > A LOT of linux software is NOT soundcard driver specific and works well
> with just about ANY sound interface that is on a motherboard or card or
> whatever.
> >
> > And I never needed the GPIO to be on the sound chip.
> > Nor did I need all of the DSP functionality to be done in the CPU via
> the sound interface.
> > I'm curious if there have been any developments since that allow more
> sound interfaces to work or is it still the same and require a CM108/109
> type USB device?
> >
> >
> > Thanks!!
> >
> > Steve
> > N8LBV
> >
> >
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