The Allwinner H2+ has the same audio subsystem as the H3, and it is apparently similar to other Allwinner audio subsystems. There is Linux kernel support for these codec, and ALSA can see them and manipulate them. Ther is a block diagram onf eh subsystem in the Allwinner H2+ Dartasheet V1.2.pdf on p...

Followup: The instructions on the wiki do not state this, but you shold follow the instructions for the Neo, not the M1, when you build. Then the generated code will read the file /sys/class/sunxi_info to determine the board type. That's great, but the result from gpio readall has the wrong physical...

The NanoPi Duo wiki page: http://wiki.friendlyarm.com/wiki/index.php/NanoPi_Duo2#Access_GPIO_Pins.2FWirings_with_WiringNP directs the user to the WiringNP wiki page: http://wiki.friendlyarm.com/wiki/index.php/WiringNP:_NanoPi_NEO/NEO2/Air_GPIO_Programming_with_C The WiringNP page provides directions...

Thanks, Igor. I had figured out a variant of this. Since g_mass_storage is loaded during init, not during boot, I was able to keep it from loading by removing its entry from the modprobe.d directory. I added g_cdc to /etc/modules as you suggested. To initialize the usb0 link, I added a static IP con...

The following commands allow me to use IP-over-USB instead of a serial connection: su modprobe -r g_mass_storage modprobe g_cdc ifconfig usb0 netmask 255.255.255.0 192.168.13.2 However, I'm not sure how to cause this to happen a boot time. I use Raspbian and Gentoo, but I've never used sun8xi before...