[arm-allstar] CM108 USB sound FOB

Doug Crompton doug at crompton.com
Mon Aug 22 10:59:05 EST 2016


Daniel,

Yes, that chip definitely has less and different pinouts but I think Dave's point was that it would support audio I/O as long as the vendor and product codes are included in our code which they now are in beta.  GPIO would have to be handled externally which would be possible with a scheme using the Arduino Nano that we are coming out with shortly.

Thats why I said don't throw them out you might be able to use them in the future!

73 Doug
WA3DSP
http://www.crompton.com/hamradio


> To: arm-allstar at hamvoip.org
> Date: Mon, 22 Aug 2016 17:23:46 +0200
> Subject: Re: [arm-allstar] CM108 USB sound FOB
> From: arm-allstar at hamvoip.org
> CC: daniel at dbernhardt.com
> 
> Hi David,
> 
> I just read the email thread from December 2015 [1] where the chip identifier 
> was first mentioned. In the attached source code of chan_simpleusb.c the 
> product id is identified as C108AI and further down the code GPIO bits are set 
> specifically for this chip. 
> Looking up the only datasheet I could find there are no GPIOs on that chip. Or 
> am I not reading the datasheet correctly? Also the pinout is slightly 
> different than that of the cm108. You can find the HS-100 datasheet here: 
> https://be2cloud.de/index.php/s/25mQq1Vx8aGjdAR
> 
> I'm just confused whats happening in the code compared to what I see in the 
> datasheet. If it is no trouble to you (or anyone else) I would really 
> appreciate if you could help me out here. 
> 
> Other than that I'll wait for the next public beta (or my cm108 chipment from 
> china, whatever comes first). 
> 
> Thanks for your support.
> 
> Regards,
> Daniel, DK1DB
> 
> [1] http://lists.hamvoip.org/pipermail/arm-allstar/2015-December/002393.html
> 
> 
> On Monday 22 August 2016 05:19:59 David McGough via arm-allstar wrote:
> > Hi Daniel,
> > 
> > Thanks for the info about the C-media device. We already have support for
> > this VID:PID in our recent builds, starting as of V1.02beta for the
> > RPi2/3. Lito, KI9H, was the first to report this device and sent a patch
> > in late 2015.
> > 
> > Once formally released, previously we've included all customized source
> > code in the /usr/src/utils folder. As of the upcoming new releases, the
> > source code has been moved to ArchLinux style packages, since it adds to
> > the initial download size and isn't immediately needed to get "up and
> > running."
> > 
> > We also use SVN for source code management.  Access to SVN is currently
> > restricted to a handful of developers, since this code is in constant
> > development and just downloading a snapshot frequently won't yield a
> > working application!
> > 
> > The latest alpha code included many, many nifty enhancements and new
> > features!  It fixes numerous long-standing annoyances and is currently
> > being run by a small group of devoted testers.
> > 
> > Another public beta release is coming soon.
> > 
> > 73, David KB4FXC
> > 
> > On Mon, 22 Aug 2016, Daniel Bernhardt via arm-allstar wrote:
> > > Hi Doug,
> > > 
> > > I am back at work and as promised I have more information about the
> > > HS-100B chip for you. First the link to the amazon page:
> > > 
> > > https://www.amazon.de/Sabrent-External-Aluminum-erforderlich-AU-EMAC/dp/B0
> > > 0OJ5AV8I/ie=UTF8
> > > 
> > > Although the page is in German you can clearly see from the product name
> > > how I got fooled. The name is: "Sabrent USB External Aluminum Stereo
> > > Sound Adapter für Windows und Mac. Plug and play. Inkl. USB Kabel. keine
> > > Treiber erforderlich. (Silber) [C-Media CM108 Chipset] (AU-EMAC)"
> > > 
> > > Attached to this email you get the complete "lsusb -v" output from the
> > > device. Its device ID is: "ID 0d8c:0014 C-Media Electronics, Inc."
> > > 
> > > I will keep the module for future use when you have completed the code for
> > > external I/O. I guess you're going to write a library as a wrapper to
> > > have a unified way to act on COS/PTT from asterisk and use plugins in
> > > that library to trigger GPIOs for every supported platform like one for
> > > RPi and one for BBB and so on. Do you have a git repository so we can
> > > play with or review the code or will it be closed source?
> > > 
> > > Kind regards,
> > > Daniel, DK1DB
> > > 
> > > On Monday 15 August 2016 15:09:01 Doug Crompton via arm-allstar wrote:
> > > 
> > > 
> > > Daniel,
> > > 
> > >    That makes more sense. Interestingly that chip will probably work for
> > >    audio if setup with> 
> > > the code and then would work in the near future with our code and external
> > > I/O for COS/PTT. So don't throw it in the trash. You might be a beta test
> > > case.
> > > 
> > > If you have the amazon link please forward and also when you can the
> > > 'lsusb' data.
> > > 
> > > *73 DougWA3DSPhttp://www.crompton.com/hamradio*
> > > 
> > > 
> > > To: arm-allstar at hamvoip.orgDate: Mon, 15 Aug 2016 20:01:25 +0200Subject:
> > > Re: [arm-allstar] CM108 USB sound FOBFrom: arm-allstar at hamvoip.orgCC:
> > > daniel at dbernhardt.com
> > > 
> > > 
> > > 
> > > Hi Doug, I must have been really obsessed with the term  "CM108" to get
> > > the name of the other chip that wrong. The chip I mean is named HS100B.
> > > It is also produced by C-Media but lacks a lot of features. Here is a
> > > link to the chip:
> > > 
> > > http://www.cmedia.com.tw/products/USB20_FULL_SPEED/HS100B[1]
> > > http://www.crompton.com/hamradio[2]
> > > http://lists.hamvoip.org/cgi-bin/mailman/listinfo/arm-allstar[3]
> > > http://hamvoip.org[4]
> > > 
> > > 
> > > 
> > > 
> > > 
> > > 
> > > --------
> > > [1] http://www.cmedia.com.tw/products/USB20_FULL_SPEED/HS100B
> > > [2] http://www.crompton.com/hamradio
> > > [3] http://lists.hamvoip.org/cgi-bin/mailman/listinfo/arm-allstar
> > > [4] http://hamvoip.org
> > 
> > _______________________________________________
> > 
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> > 
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> 
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