epoch1970 wrote: 
> In a way, yes...
> Your audio system expects a mass-storage device, the Pi does too. This
> means they both act as USB hosts, and you can't connect 2 hosts
> together.
> You'd want the Pi to present itself as a mass-storage -device-, while
> playing its mp3fs trick over FLAC files that are in reality stored on
> the SD card. The only Pi product that will perhaps do that is Pi0 (and
> 0w?) which are AFAIK the only Pis that support USB OTG (Linux calls that
> "usb gadget mode").
> 
> I'm clearly not the specialist but I think you need to be a hero to try
> doing something like that. Plus large µSD cards are expensive.
> 
> EDIT: '0w supports gadget mode'
> (https://www.raspberrypi.org/forums/viewtopic.php?t=190721#p1197886)I read 
> here that I could theoretically I could use a Zero mounted on a
Pi3 via the GPIO header. Not sure how I'd pull it off or what software
would be involved, though. 

https://www.raspberrypi.org/forums/viewtopic.php?t=190721#p1197886
You assume wrong. All B-series models of Pis have a USB hub. Pi0, Pi0W,
all A-series and all CM-series Pis do not. On the Pi3B and Pi0W (and the
Pi3A whenever it gets launched) the WiFi and BT are *not* on the USB
bus.

Sent from my SM-T813 using Tapatalk




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