Kindle USB Audio Adapter - Page 3

NiLuJe · 05-14-2016, 05:33 PM

@geekmaster: @BD's JB works fine on a PW2 (hell, I think that's the original device he tested on, as did I).

geekmaster · 05-14-2016, 06:44 PM

Quote:

Originally Posted by NiLuJe

@geekmaster: @BD's JB works fine on a PW2 (hell, I think that's the original device he tested on, as did I).

I tried BD's jailbreak, as posted in the first post. Multiple times. It did not work. BD suggested trying the original instructions. That involved accessing an external webpage, which required connecting to my wi-fi. Then I got a phone call. When I got off the phone, my PW2 had already upgraded to the newest firmware. That complicates things, I think...

I guess I should have disconnected my wi-fi from the internet and run my own local jailbreak webserver. Oh well, maybe for my next PW2 acquisition, eh?

NiLuJe · 05-14-2016, 07:29 PM

@geekmaster: Ouch. ^^. FYI, I have a dns proxy config posted *somewhere* in that thread for the "classic" install method.

If it's a WiFi 4GB one, PM me, I might have a way to either kill it dead or do something useful with it

.

geekmaster · 05-14-2016, 07:54 PM

Quote:

Originally Posted by NiLuJe

@geekmaster: Ouch. ^^. FYI, I have a dns proxy config posted *somewhere* in that thread for the "classic" install method.

If it's a WiFi 4GB one, PM me, I might have a way to either kill it dead or do something useful with it

.

It is wi-fi only, but the shared storage is only 1.4GB. How is the 4GB version different?

I cannot find my collection of USB TTL serial adapters -- thinking of using a spare kindle as a TTL serial adapter...

But willing to try your idea, if it MIGHT work on this PW2.

Doitsu · 05-14-2016, 08:02 PM

Quote:

Originally Posted by knc1

Did (or does) a new device node show up in /dev when you plug in the audio device?

Unfortunately, I lack the technical skills to answer this question. The most I can do is capture the dmesg output via a Kual shell script.

Quote:

Originally Posted by knc1

If not, either it isn't suppose to or your firmware version is missing a u-dev rule (which would be something fairly easy to find).

I suspect that the 5.7.4.1 firmware update also added something to the GUI, because in the demo video that I've seen the PW3 also announced the name of certain GUI elements.

Quote:

Originally Posted by knc1

dmesg -c

When I used dmesg -c before inserting the usb sound card and then captured the dmesg output no new messages were captured.
I.e. the usb sound card probably wasn't detected at all. (When I restarted the Kindle with the usb audio card attached the dmesg output also contained a line that said that no ALSA devices were detected.)

Quote:

Originally Posted by knc1

I ordered one of the Amazon dongles, just to learn about it.

It might interesting to find out what its vendor and device ids are.

Quote:

Originally Posted by geekmaster

I tried my $0.99 USB audio dongle on my PW3 this morning and it would not even power on.

Can you please post the vendor and device ids of your usb audio card(s)?

My usb audio card was listed as (C-Media Electronics Inc. [0D8C:0014]).

I'm curious to find out how common re-branded usb audio cards by this manufacturer are.

geekmaster · 05-14-2016, 08:43 PM

Quote:

Originally Posted by Doitsu

I suspect that the 5.7.4.1 firmware update also added something to the GUI, because in the demo video that I've seen the PW3 also announced the name of certain GUI elements.

My accidental (PEBKAC FUBAR) firmware update COMPLETELY changed my GUI. For example, the frontlight slider is not vertical anymore, but now horizontal, and buried in a "gear" settings icon, instead of having its own "lightbulb" icon. And big changes to the way the library works too; no more "Cloud | Device" selector, for example. And tapping the power button does not completely wake it -- now you have to "swipe to unlock kindle" to view the GUI (like an apple device).

And just to do the right thing, I returned the 135 books on this used device, before deregistering it, so the original family (account owner different name than device owner) can download those books onto a different device (without risk of exceeding license count). It was the right thing to do... EDIT: Or maybe not? This kindle has a new document addressed to the ACCOUNT owner (not the kindle owner) saying "You returned this Kindle Owner's Lending Library book on May 17, 2014". Weird date; today is May 14, 2016. Not sure what's up with that. There were NO "[Returned]" books before, and now about a dozen of them on this device. Still learning how this kindle library stuff works. I mostly view side-loaded PDF files on my kindles, when I actually use them as an ebook reader...

Now, I will try plugging my USB sound dongle in on this PW2 I just received, which has the latest firmware. EDIT: Nope. No sound device. Maybe only on a PW3 or newer, or a DIFFERENT USB dongle?

Cinisajoy · 05-14-2016, 08:58 PM

What is PEBKAC?

TinyApps.Org · 05-14-2016, 09:32 PM

Problem Exists Between Keyboard And Chair

geekmaster · 05-15-2016, 01:27 AM

I have the latest 5.7.4 firmware (no jailbreak) on my PW2. I installed the voice update from amazon. It added a 154MB /voice/ folder to my userstore. I plugged in my USB sound dongle and rebooted. I captured logs with ;dm search command. The only things relevant seem to be:

PHP Code:


			
160515:050359 [    0.280854] usbcore: registered new interface driver snd-usb-audio
160515:050359 [    0.280865] ALSA device list:
160515:050359 [    0.280871]   No soundcards found.
...
160515:050406 PRINTKBUF: === <6>[ 0.146986] Advanced Linux Sound Architecture Driver Version 1.0.24.
...
160515:050412 PRINTKBUF: === <6>[ 0.277249] usbcore: registered new interface driver snd-usb-audio
160515:050412 PRINTKBUF: === <6>[ 0.277260] ALSA device list:
160515:050412 PRINTKBUF: === <6>[ 0.277265] No soundcards found.

The LED on the sound dongle never even flickers, nor is there any sound. It might be looking for a different USB sound chipset, but if it can power the amazon sound dongle, and the hacked version, it should at least TRY to access this, I think. Unless the PW2 cannot suppy sufficient power to light an LED?

Doitsu · 05-15-2016, 03:50 AM

Quote:

Originally Posted by geekmaster

I have the latest 5.7.4 firmware (no jailbreak) on my PW2. I installed the voice update from amazon. It added a 154MB /voice/ folder to my userstore. I plugged in my USB sound dongle and rebooted. I captured logs with ;dm search command.

I pretty much got the same messages. This makes me wonder whether the PW2 hardware actually supports OTG in general and usb sound cards in particular. (I know that it has the required drivers.)

On the off chance that we both happened to have bought a usb sound card with an unsupported chipset, can you please post the lsusb output for your device.

Mine is:

Code:

Bus 005 Device 010: ID 0d8c:0014 C-Media Electronics,. Inc.

If you currently don't have access to a Linux machine, plug your sound card into a Windows machine and get the vendor and device ids from the device manager driver details dialog box. For example, it reported the following ids for my sound card:

Code:

USB\VID_0D8C&PID_0014&REV_0100&MI_00

BTW, my USB sound card doesn't have a LED so I can only tell whether it's working by listening to the headphones.

@knc1: On full-blown Linux machines I can use modprobe to load device drivers; does the Kindle have a similar mechanism?

knc1 · 05-15-2016, 06:16 AM

Quote:

Originally Posted by Doitsu

- - - -
@knc1: On full-blown Linux machines I can use modprobe to load device drivers; does the Kindle have a similar mechanism?

Yes.
Used every time you plug or un-plug the USB cable for example.
The Kindle kernel's module auto-loader is fully functional.

= = = =

Earlier you mentioned running a KUAL script to capture dmesg -
If you meant my "dmesg to document" button -
it does do a:
dmesg -c
command.

So run it once - discard the document -
do whatever your interested in -
run it again -
the second document has only the content **after** the first document.

(All output from that button can be "cat'ed" together - I thought I mentioned that in the information about that button.)

Doitsu · 05-15-2016, 07:52 AM

Quote:

Originally Posted by knc1

So run it once - discard the document -
do whatever your interested in -run it again -
the second document has only the content **after** the first document.

I used this method, but unfortunately got the same results as geekmaster.

It looks like the PW2 doesn't see my usb audio card.

geekmaster · 05-15-2016, 08:15 AM

Quote:

Originally Posted by Doitsu

... On the off chance that we both happened to have bought a usb sound card with an unsupported chipset, can you please post the lsusb output for your device.

Mine is:

Code:

Bus 005 Device 010: ID 0d8c:0014 C-Media Electronics,. Inc.

I have a 10-pack of cheap Chinese (less that $1 each, shipped, as I recalled) "3D SOUND" USB dongles, in transparent bright fluorescent green packaging, with both headset and microphone jacks. The VID/PID (reported by lsusb) is:

Bus 001 Device 011: ID 0c76:1607 JMTek, LLC. audio controller

Not the same as yours. But both of ours are obviously not the same as amazon's either (or they MIGHT work)...

theducks · 05-16-2016, 08:05 PM

Quote:

Originally Posted by HarryT

The Amazon adapter costs $20, which seems pretty reasonable. Is there such a thing as a standard "audio dongle" for converting USB signals into headphone output? I've never come across such a device, and a Google search gives no likely-looking hits.

There are many USB Audio 'sticks' for PCs. Some even offer 5.1 Surround Sound.

The issue I see, is the Kindle is the (storage) Device end of a USB. Now the driver needs to flip and make it a Host (detect a device has been attached)

geekmaster · 05-16-2016, 08:13 PM

Quote:

Originally Posted by theducks

There are many USB Audio 'sticks' for PCs. Some even offer 5.1 Surround Sound.

The issue I see, is the Kindle is the (storage) Device end of a USB. Now the driver needs to flip and make it a Host (detect a device has been attached)

Some kindles are not wired to detect a device attached. The software needs to be told to actively switch modes and LOOK for a device. And for some kindles you may need external power (splitter cable or powered hub). We just need somebody to write a KUAL extension for that, eh?

05-15-2016, 01:27 AM	#39
geekmaster Carpe diem, c'est la vie. Posts: 6,433 Karma: 10773668 Join Date: Nov 2011 Location: Multiverse 6627A Device: K1 to PW3	I have the latest 5.7.4 firmware (no jailbreak) on my PW2. I installed the voice update from amazon. It added a 154MB /voice/ folder to my userstore. I plugged in my USB sound dongle and rebooted. I captured logs with ;dm search command. The only things relevant seem to be: PHP Code: 160515:050359 [ 0.280854] usbcore: registered new interface driver snd-usb-audio 160515:050359 [ 0.280865] ALSA device list: 160515:050359 [ 0.280871] No soundcards found. ... 160515:050406 PRINTKBUF: === <6>[ 0.146986] Advanced Linux Sound Architecture Driver Version 1.0.24. ... 160515:050412 PRINTKBUF: === <6>[ 0.277249] usbcore: registered new interface driver snd-usb-audio 160515:050412 PRINTKBUF: === <6>[ 0.277260] ALSA device list: 160515:050412 PRINTKBUF: === <6>[ 0.277265] No soundcards found. The LED on the sound dongle never even flickers, nor is there any sound. It might be looking for a different USB sound chipset, but if it can power the amazon sound dongle, and the hacked version, it should at least TRY to access this, I think. Unless the PW2 cannot suppy sufficient power to light an LED? Last edited by geekmaster; 05-15-2016 at 01:31 AM.

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05-14-2016, 05:33 PM	#31
NiLuJe BLAM! Posts: 13,506 Karma: 26047190 Join Date: Jun 2010 Location: Paris, France Device: Kindle 2i, 3g, 4, 5w, PW, PW2, PW5; Kobo H2O, Forma, Elipsa, Sage, C2E	@geekmaster: @BD's JB works fine on a PW2 (hell, I think that's the original device he tested on, as did I).

05-14-2016, 07:29 PM	#33
NiLuJe BLAM! Posts: 13,506 Karma: 26047190 Join Date: Jun 2010 Location: Paris, France Device: Kindle 2i, 3g, 4, 5w, PW, PW2, PW5; Kobo H2O, Forma, Elipsa, Sage, C2E	@geekmaster: Ouch. ^^. FYI, I have a dns proxy config posted somewhere in that thread for the "classic" install method. If it's a WiFi 4GB one, PM me, I might have a way to either kill it dead or do something useful with it .

05-14-2016, 08:58 PM	#37
Cinisajoy Just a Yellow Smiley. Posts: 19,161 Karma: 83862859 Join Date: Jul 2015 Location: Texas Device: K4, K5, fire, kobo, galaxy	What is PEBKAC?

05-14-2016, 09:32 PM	#38
TinyApps.Org Enthusiast Posts: 28 Karma: 43222 Join Date: Feb 2010 Device: e-ink monitor	Problem Exists Between Keyboard And Chair