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| author | Jean-François Moine <moinejf@free.fr> | 2011-08-10 10:28:44 (GMT) |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2011-09-11 12:27:05 (GMT) |
| commit | 480992b357d153b8417ba242fc43e96d90cff94c (patch) | |
| tree | f86ebe81d3eb4697d7e7831c9f73d8d38884b9fd | |
| parent | 8d64d4f67eb051551c0702501c35e9cc27d8b75d (diff) | |
| download | linux-fsl-qoriq-480992b357d153b8417ba242fc43e96d90cff94c.tar.xz | |
[media] gspca - main: Fix the isochronous transfer interval
For USB speeds different of 'low', the bInterval value is logarithmic.
Signed-off-by: Jean-François Moine <moinejf@free.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
| -rw-r--r-- | drivers/media/video/gspca/gspca.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/media/video/gspca/gspca.c b/drivers/media/video/gspca/gspca.c index a3c2d36..85d2469 100644 --- a/drivers/media/video/gspca/gspca.c +++ b/drivers/media/video/gspca/gspca.c @@ -754,7 +754,10 @@ static int create_urbs(struct gspca_dev *gspca_dev, ep->desc.bEndpointAddress); urb->transfer_flags = URB_ISO_ASAP | URB_NO_TRANSFER_DMA_MAP; - urb->interval = ep->desc.bInterval; + if (gspca_dev->dev->speed == USB_SPEED_LOW) + urb->interval = ep->desc.bInterval; + else + urb->interval = 1 << (ep->desc.bInterval - 1); urb->complete = isoc_irq; urb->number_of_packets = npkt; for (i = 0; i < npkt; i++) { |