On Wed, Apr 03, 2002 at 06:39:14PM -0500, Dan Streetman wrote:
> 
> On Wed, 3 Apr 2002, Greg KH wrote:
> 
> >Do you have to write a kernel driver?  Can you just use usbfs or libusb
> >to talk to your device from userspace?  It handles INT transactions
> >pretty well.
> 
> libusb supports INTs?  Do you mean via BULK calls, I looked at the
> CVS code and it doesn't look like there is INT support...?

Sorry, yes, I meant that it is possible to send INT packets through
usbfs.  I didn't necessarily specify how to do it :)

And I don't know how libusb works.

> Also for usbfs be careful not to use USBDEVFS_URB_TYPE_INTERRUPT if
> your host controller is OHCI, otherwise you will likely kill your
> system.  Use BULK instead, directed to the INT endpoint.

I thought this was fixed in the latest round of usb-ohci patches?

thanks,

greg k-h

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