[MOD] USB Audio Support

jacknorris · Jan 17, 2013

Sorry for the lack of updates.
Going to post something after work tonight

paatos · Jan 17, 2013

jacknorris said:
Sorry for the lack of updates.
Going to post something after work tonight

Could you help me setup my USB card Maya 44? Patches from first post doesn't make my card default in any case :/
Card is properly initialized by Android. USB Audio Recorder can record and play wav files through Maya 44 but I can't make usb card default in whole system.

I'm using right now XenonHD Stable-2.0 (4.2.1). Only in XenonHD mixers are properly showed in AlsaMixer from Google Play. Also, card is visible in /dev/pcm/. Trying to symlink as default card with no effect (no sound at all).

Editing audio_policy.conf and setting USB_DEVICE_OUT_SPEAKER as default = no sound at all.

CZ Eddie · Jan 20, 2013

jacknorris said:
Sorry for the lack of updates.
Going to post something after work tonight

You must be getting some serious overtime $$$ at that job of yours. :angel:

jacknorris · Jan 22, 2013

CZ Eddie said:
You must be getting some serious overtime $$$ at that job of yours. :angel:

Haha, I wish!

Sorry for the delays. I found an issue when patching the stock ROM that I would like to fix - thankfully it doesn't appear to be too much work. I'll avoid giving dates but I would rather release something that actually works for the majority this time around

And in response to your earlier post. Yes, it will work for the S3 and other devices. Providing you can get hold of a kernel with the USB audio drivers compiled in.

jacknorris · Jan 23, 2013

Original post updated with new patch method.
Please give it a go and let me know!

Remember to backup your device first, bugs will be bugs!

CZ Eddie · Jan 23, 2013

edit: I was doing it wrong. Without SU privileges.
After letting ADB have SU, it worked.

CZ Eddie · Jan 23, 2013

edit: I was doing it wrong. Without SU privileges.
After letting ADB have SU, it worked.

jacknorris · Jan 23, 2013

Can you guys make sure your device is on and unlocked/on the home screen when running the software? It may be that SuperSU/Superuser has popped up asking for permission to run as root.

CZ Eddie · Jan 23, 2013

jacknorris said:
Can you guys make sure your device is on and unlocked/on the home screen when running the software? It may be that SuperSU/Superuser has popped up asking for permission to run as root.

edit: I was doing it wrong. Without SU privileges.
After letting ADB have SU, it worked.

jacknorris · Jan 23, 2013

CZ Eddie said:
No difference here.
The .exe just complains about me having a de-odexed ROM instead of an odexed.
I was on my homescreen just now. Ran the .exe and did not see Superuser ask for any permissions. Nothing happened on the phone at all.

Win7x64
Java installed
.net 4.0
Ran the .exe as an administrator

CyanogenMOD 10.1 1/22/12 build for Galaxy S3
Busybox installed
Debugging enabled
Fresh install, no other apps installed yet (except gapps & busybox 1.202)

Please could you run the following adb command on your device(s) and reply or PM me with the output.

shell su cat /init.rc
eg. adb.exe shell su cat /init.rc

Thanks

Darkii89 · Jan 23, 2013

mods doesn't work with note 2 :X
patched successfully but the whenever i plugin my usb dac the music player freeze or play with with no sound

, its not compatible with note 2 i think the same will be for s3 @_@

jacknorris · Jan 23, 2013

Darkii89 said:
mods doesn't work with note 2 :X
patched successfully but the whenever i plugin my usb dac the music player freeze or play with with no sound , its not compatible with note 2 i think the same will be for s3 @_@

Stock versions of Note/S3 may have issues but CM10/10.1 should be fine. I have tested it on a friends S3 and it works without issue.
What OS are you running on your Note 2?

Darkii89 · Jan 23, 2013

jacknorris said:
Stock versions of Note/S3 may have issues but CM10/10.1 should be fine. I have tested it on a friends S3 and it works without issue.
What OS are you running on your Note 2?

tried both latest stock build and cm10.1 "hyperdroidjbx", i got note 2 international version, ur friend has us variant s3?

NicoAndroidx3 · Jan 23, 2013

works very well for me.

CZ Eddie · Jan 23, 2013

jacknorris said:
Please could you run the following adb command on your device(s) and reply or PM me with the output.

shell su cat /init.rc
eg. adb.exe shell su cat /init.rc

Thanks

Okay, I found the problem while trying to su.

Mentwar said:
By default CM10 [cm10.x] only allows root access from Apps, not ADB.
Go to Settings -> Developer options -> Root access, and change option to "Apps and ADB".

After changing my setting to "Apps and ADB", I was now able to run your .exe successfully on my ATT Galaxy S3.
And my phone rebooted successfully!

Now to work on figuring out how to add USB Audio drivers to my kernel!!! :good:

---------- Post added at 12:51 PM ---------- Previous post was at 12:03 PM ----------

jacknorris said:
Stock versions of Note/S3 may have issues but CM10/10.1 should be fine. I have tested it on a friends S3 and it works without issue.

Wait, you got USB-DAC working on a North American Galaxy S3 running CM10.1?
Could I ask what you guys did to get it working? I thought we didn't have drivers yet.

jacknorris · Jan 23, 2013

CZ Eddie said:
Okay, I found the problem while trying to su.

After changing my setting to "Apps and ADB", I was now able to run your .exe successfully on my ATT Galaxy S3.
And my phone rebooted successfully!

Now to work on figuring out how to add USB Audio drivers to my kernel!!! :good:

---------- Post added at 12:51 PM ---------- Previous post was at 12:03 PM ----------

Wait, you got USB-DAC working on a North American Galaxy S3 running CM10.1?
Could I ask what you guys did to get it working? I thought we didn't have drivers yet.

Not the NA version unfortunately. International S3 running CM 10.1.
Glad to hear that it actually worked without killing the OS this time around. I will update the app to check for the ability to SU. I'm not sure on the drivers for the NA S3. Is there a significant hardware difference between the two models?

CZ Eddie · Jan 23, 2013

jacknorris said:
Not the NA version unfortunately. International S3 running CM 10.1.
Glad to hear that it actually worked without killing the OS this time around. I will update the app to check for the ability to SU. I'm not sure on the drivers for the NA S3. Is there a significant hardware difference between the two models?

Thanks!
Yes, the two S3 models have a different CPU. I'm not sure of any other hardware differences.

CynicalMushroom · Jan 23, 2013

Sv: [MOD] USB Audio Support

Okay, let me get this straight before I flash this. This reportedly makes usb audio work on the I9300 running cm 10.1 (JB 4.2.1), right? Does that include hotplugging it or do we need to reboot every time we want to use it?

Also, is it in any way possible to do this using a mac? Or do I have to use another pc with windows?

Sent from my GT-I9300 using xda premium

CZ Eddie · Jan 23, 2013

CynicalMushroom said:
Okay, let me get this straight before I flash this. This reportedly makes usb audio work on the I9300 running cm 10.1 (JB 4.2.1), right? Does that include hotplugging it or do we need to reboot every time we want to use it?

Also, is it in any way possible to do this using a mac? Or do I have to use another pc with windows?

Sent from my GT-I9300 using xda premium

Since his .exe is for Windows, I would suggest using a Windows virtual machine to run his utilty.

jacknorris · Jan 23, 2013

I have updated the main post with v1.1 which should detect root a bit better. I am still interested to hear of results with other devices. If there are issues I may be able to create device specific patches that can be applied in the same way.

CZ Eddie said:
Thanks!
Yes, the two S3 models have a different CPU. I'm not sure of any other hardware differences.

I am looking into the driver situation now, just out of interest what is the codename for your NA S3? (eg i9300, d2vzw, d2att etc)

CynicalMushroom said:
Okay, let me get this straight before I flash this. This reportedly makes usb audio work on the I9300 running cm 10.1 (JB 4.2.1), right? Does that include hotplugging it or do we need to reboot every time we want to use it?

Also, is it in any way possible to do this using a mac? Or do I have to use another pc with windows?

Sent from my GT-I9300 using xda premium

That is correct, this will enable hot plugging of USB audio devices. The only catch is that you need a kernel flashed to the device with USB audio drivers before anything will actually work.

[MOD] USB Audio Support

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