Backporting Galaxy S III USB Audio to GSII? - Galaxy S II Q&A, Help & Troubleshooting

The GSII supports the USB Audio standard, allowing USB DACs (soundcards) to be used with a OTG USB cable.
Does anyone know if it would be possible to backport the USB Audio support from the GSIII kernel to a GSII kernel? Or does this require userland modifications?
Linux/ALSA has supported USB Audio for a long time.
Jellybean supports a new kind of USB Audio but it is designed for use with car docks, and is not the standard driver-less USB Audio standard used by Linux, Mac & Windows. Many people have confirmed that the Galaxy Nexus and Nexus 7 running Jellybean do not support standard USB Audio DAC.
The Samsung GSIII support for USB Audio is unique.

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USB Host via Software Mod?

I've read the thread about enabling USB Host through a hardware mod of a powered USB hub, but I am hoping the Atrix is able to accomplish USB host mode via software hack? From what I understand, it is an ICS feature but requires kernel level support, so am I stuck without it before Motorola releases official ICS for Atrix? It hasn't worked with CM9 or 2.3.6 Blur ROMs.
Separately, I am looking for any webtop installs that have worked with this...stock webtop didn't enable digital audio out via USB.
FYI, I am looking forward to this to use my USB-powered Digital-to-Analog Converter and headphone amplifier (Fiio e7) with my Audio Technica ATH-M50 studio monitors. The audio signal out of the analog jack is not quite sufficient.
Any help my Atrix brethren?
Any help?
Sent from my CM9 Atrix
The atrix supports USB host even with the stock kernel. There are 2 things you should consider though.
1. The ARM devices need a charge on the USB line to go into host mode, so a software solution is highly improbable
2. You need a kernel or kernel modules for your USB audio stick to work properly in addition to some also, or any other mixer that supports picking the output.
Wow, so not even with an OTG cable? It doesn't even need to install drivers, was hoping this would be workable. Thanks for your insight.
Sent from my CM9 Atrix
The drivers are there, but you need the signal on the usb which you can get through an otg +powered usb hub. It works fine than. You can use the hd dock instead of this though, its way less messy that way.
Thank you for your explanation, looks like I will need to wait to see what motorola puts out with the ics update.
Sent from my Atrix 3.5G

USB OTG - supported usb wired ethernet

Hi Folks,
I have the OTG cable and USB Y cable working my touchpad with 7/30 CM9 nightly... I would like to purchase a USB wired ethernet adapter. Has anyone tried and know of one that would actually work on the touchpad with CM9?
Thanks a ton!!
Anything that Android 4.0 supports should work unless its limited by our kernel. I'd say there is a good chance this one would work as it mentions plug and play compatibility on Android 3.2+. But there could be kernel limitations so you may want to get another opinion.
http://www.amazon.com/Ethernet-Adapter-Android-Tablets-Windows/dp/B007RTACDM
http://forum.xda-developers.com/showthread.php?t=1552102

Adding Bluetooth dongle support?

Hi I have just bought an Ainol Aurora II to supplement my Ipad and my phones. Original rom has been replaced by "DoubleRom V24".
Now this does not support bluetooth dongle on the OTG - is it possible to add it with modules, or does it require a new kernel with the support built into the kernel? Also the same goes for USB GPS via OTG cable.
nobody doing driver development on Android?

[Q] usb dac fiio e7 support

Hi,
I own a nexus 7 4.2.1. My simple question is wether to wait for support for the fiio e7 dac in a next version, or to root and install an alternative kernel which i'm not fond of. I thought that in the 4.2.1 version at least the nexus would notice there is a otg cable and usb dac device connected, but nothing. Any suggestions.

Recent Android devices that support MHL

Hi all. I am looking to get an Android device that supports MHL (Mobile High-Definition Link) so that I can connect it to my car's display via the HDMI port. This site: https://www.mhltech.org/devices.aspx?tid=1 mentions phones that support MHL. However, the majority of devices I see are old and not recent devices e.g. Galaxy S3. So I wanted to know, are there any recent Android phones such as Samsung or Huawei that support MHL?

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