[linux-audio-dev] synthesis on gp2x .. (was Fwd: RE: [gpx-dev] hardware interfaces)

Jay Vaughan jayv at synth.net
Wed Jan 18 21:13:17 UTC 2006


At 13:16 -0600 18/1/06, Richard Smith wrote:
>  > > Sounds great, but I'm a little bit confused by other information I found
>  > > on the web about USB host mode support:
>  >
>  > I'm confused too.  I've never heard of "USB host mode", what is it?
>
>I believe he is refering to if the device can operate as a USB host
>bridge rather than just as a usb device.  OTG devices and some
>embedded chips can be both.
>

no, you see .. the gp2x has, sorta, 'two' of everything, including 
USB.  there's the on-chip (magiceyes) USB1 'host device' (like in 
your PC) routed only to EXT2 (not a standard 'flat' USB jack), and 
there's the additional 'slave device' USB2 chipset going to the 
mini-USB-socket on the side.

its quite possible to put a USB-Gadget, class compliant audio driver 
onboard that would turn the gp2x into a 'sound device' for your PC, 
or Mac, or whatever .. and use the USB hosting abilities to do MIDI, 
other sound cards, etc...

-- 

;

Jay Vaughan




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