Comment 116 for bug 1563110

SD Card hasn't been fixed yet but sound works after you use the kernel I have compiled:
https://github.com/Grippentech/Asus-E200HA-Linux-Post-Install-Script

I'm working on making a smaller version of the kernel as the one I have right now is quite bloated (has support for almost every device that can be supported) but that's 2+ weeks away as I'm on vacation without the E200ha.

Hopefully the changes that Takashi Iwai made with the rest of the guys working on the Sound side will get merged into mainstream kernel 4.13 but that's just speculation, not based on anything. I know they're trying to get it into mainstream tho, if Linus and the devs approve it is another issue entirely.

I'm not aware on anybody working on the SD card side of things, I'm not sure where I'd start either. If someone has some insight feel free to chip in.