V4L/DVB (9085): gspca: URB_NO_TRANSFER_DMA_MAP is required for isoc and bulk transfers.
authorFrank Zago <frank@zago.net>
Sun, 28 Sep 2008 10:43:00 +0000 (07:43 -0300)
committerMauro Carvalho Chehab <mchehab@redhat.com>
Sun, 12 Oct 2008 11:37:12 +0000 (09:37 -0200)
Signed-off-by: Frank Zago <frank@zago.net>
Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
drivers/media/video/gspca/gspca.c

index 06e50159814036c86f8f5e2a1eb7639dbcbb7466..3f0fd44f19abd62f48bc6218b0e9588a97807e66 100644 (file)
@@ -540,7 +540,8 @@ static int create_urbs(struct gspca_dev *gspca_dev,
                if (npkt != 0) {                /* ISOC */
                        urb->pipe = usb_rcvisocpipe(gspca_dev->dev,
                                                    ep->desc.bEndpointAddress);
-                       urb->transfer_flags = URB_ISO_ASAP;
+                       urb->transfer_flags = URB_ISO_ASAP
+                                       | URB_NO_TRANSFER_DMA_MAP;
                        urb->interval = ep->desc.bInterval;
                        urb->complete = isoc_irq;
                        urb->number_of_packets = npkt;
@@ -551,6 +552,7 @@ static int create_urbs(struct gspca_dev *gspca_dev,
                } else {                /* bulk */
                        urb->pipe = usb_rcvbulkpipe(gspca_dev->dev,
                                                ep->desc.bEndpointAddress),
+                       urb->transfer_flags = URB_NO_TRANSFER_DMA_MAP;
                        urb->complete = bulk_irq;
                }
        }