Re: MAX_USBFS_BUFFER_SIZE

[Oliver Neukum]

Am Mittwoch, 1. März 2006 22:59 schrieb Duncan Sands:
> > So, queing alot URBs is the recommended way to sustain the bus? Allowing
> > way bigger buffers will not be realistic?
> 
> usbfs could copy the user buffer to a bunch of non-contiguous pages, and
> then fire those off in an urb using the scatter-gather stuff.  [Rather than,
> as now, allocating a bunch of contiguous pages using kmalloc].  That would
> probably make it possible to use much much bigger user-space buffers.  Plus
> the code looks rather easy to write.

It seems to me that that would change the API. The scatter/gather stuff
can fail partially, can't it?

	Regards
		Oliver
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/