Re: [Gumstix-users] Grabbing ttyS0

[Craig H. <cr...@gu...>]

On Mar 3, 2006, at 2:54 PM, Alexandre Pereira Nunes wrote:

> - Using file_storage gadget, making gumstix appear as a "pendrive"  
> to the windows machine. That would require previous customization  
> on the gumstix build, afaik. You would have to have a loop  
> filesystem or some other sort of trick in order to make it work  
> correctly, but it works fine.

It should be pretty easy to have something which is normally mounted  
loopback on the 'stix where it reads/writes data you want to pass  
over to windows, then when USB insertion is detected (iirc it  
triggers a udev event), you unmount the loopback on the gumstix  
(after closing any open files and whatnot), then use the /sys  
interface to the file_storage gadget to tell it to export the thing  
which was just unmounted.  Windows will then mount it on its side,  
and execute the autorun.bat which is on there.  When the USB removal  
event is detected, you reverse the process -- tell /sys to unexport  
the device, then re-mount it loopback and re-open your files on the  
gumstix side.

C