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Old 07-11-2014, 12:41 PM   #1
lyssdod
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Sound on Kindles

Hi all,

I want to get sound working on my K4NT (possibly PW) via USB audio. So I ordered these (http://www.dx.com/p/virtual-5-1-surr...und-card-22475 and http://www.dx.com/p/cy-u2-053-ri-ang...ck-10cm-222708) to connect to the Kindle's USB. Hardware hack would be ideal, but I could not find internal USB for this (though I did not opened my device, just inspected motherboard's pics).

So, this would ultimately require OTG kernel module as well as USB Audio modules, ALSA and so on. Guys from this thread (http://www.mobileread.com/forums/sho...d.php?t=206188) got some results in module compiling, so I'm asking their suggestions about proper toolchain.

Any comments are welcomed
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Old 07-11-2014, 01:23 PM   #2
HarryT
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This seems like rather a pointless exercise, if you'll forgive me for saying so. If you want a Kindle with sound, why not simply get one? Eg a Kindle Touch?
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Old 07-11-2014, 01:30 PM   #3
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so what is a K4 PW (planned) model?
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Old 07-11-2014, 03:47 PM   #4
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I agree with HarryT. Especially since building and running USB OTG seems so big a hassle that almost nobody bothers, and then you need a solution for powering all this, which needs an external power source, too. So I would also suggest to either buy a Kindle with audio, or settle for a small SoC computer like the RasPi which already have audio and/or USB host mode.
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Old 07-11-2014, 04:33 PM   #5
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Quote:
Originally Posted by lyssdod View Post
- - - -
Hardware hack would be ideal, but I could not find internal USB for this (though I did not opened my device, just inspected motherboard's pics).
- - - -
It is hardwired to the 3G card connector pin-out.
See: http://pinoutsguide.com/Slots/mini_pcie_pinout.shtml
So you should find it on pins 34, 36, 38, 40
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