usbcore: Add flag for whether a host controller uses DMA

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This patch (as770b) introduces a new field to usb_bus: a flag
indicating whether or not the host controller uses DMA.  This serves
to encapsulate the computation.  It also means we will have only one
spot to update if the DMA API changes.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

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Alan Stern 2006-08-30 11:29:56 -04:00 • committed by Greg Kroah-Hartman

parent a6d2bb9ff9

commit dd990f16a3

2 changed files with 6 additions and 3 deletions

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8

drivers/usb/core/hcd.c

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1

include/linux/usb.h

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