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On Wed, Jun 06, 2001 at 01:31:41AM -0400, John Chris Wren wrote:
> I was designing a USB based device and was looking through the 2.4.5 kernel
> code, and noticed that while it supports bulk, iso, and control types, there
> is no support for interrupt types. A grep through the entire kernel source
> code reveals that USBDEVFS_URB_TYPE_INTERRUPT defined in
> linux/usbdevice_fs.h, but no where is it used. Any thoughts as to why that
> might be?
> A google search didn't seem to turn up any answers either.

Try this thread for why it is not supported:

If you still have questions about this, the linux-usb-devel mailing list
is the better place to discuss it.

greg k-h
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