On Tue, 15 Mar 2011 09:02:00 -0300
Mauro Carvalho Chehab wrote:
>
> You're allocating a buffer for URB control messages. IMO, this is a good
> idea, as
> this way, allocating/freeing on each urb call is avoided. However, on most
> places,
> you're not using it. The better would be to just use t
Em 15-03-2011 05:43, Florian Mickler escreveu:
> usb_control_msg initiates (and waits for completion of) a dma transfer using
> the supplied buffer. That buffer thus has to be seperately allocated on
> the heap.
>
> In lib/dma_debug.c the function check_for_stack even warns about it:
> WARNI
usb_control_msg initiates (and waits for completion of) a dma transfer using
the supplied buffer. That buffer thus has to be seperately allocated on
the heap.
In lib/dma_debug.c the function check_for_stack even warns about it:
WARNING: at lib/dma-debug.c:866 check_for_stack
Note: This ch
