diff options
| author | Hans de Goede <hdegoede@redhat.com> | 2012-01-01 13:34:58 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2012-01-06 09:05:32 -0200 |
| commit | 51e23be28418cf836287615cf78b237af13ea1b3 (patch) | |
| tree | ff677b98ebfdac878abb7f5d4d8668b10f82a12b /drivers/media/video/gspca/gspca.c | |
| parent | 2d39059a656c0d0f61cfee8225f3d222dac7f3ac (diff) | |
| download | linux-51e23be28418cf836287615cf78b237af13ea1b3.tar.bz2 | |
[media] gspca - main: isoc mode devices are never low speed
Quoting from the official usb 20 spec:
"5.6.4 Isochronous Transfer Bus Access Constraints
Isochronous transfers can only be used by full-speed and high-speed devices."
This means that for code paths which are isoc mode only, we don't need to
check for the device being low speed, simplifying the code.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Jean-François Moine <moinejf@free.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/video/gspca/gspca.c')
| -rw-r--r-- | drivers/media/video/gspca/gspca.c | 5 |
1 files changed, 1 insertions, 4 deletions
diff --git a/drivers/media/video/gspca/gspca.c b/drivers/media/video/gspca/gspca.c index 4a3bbffafcd4..a8643bcd2ecb 100644 --- a/drivers/media/video/gspca/gspca.c +++ b/drivers/media/video/gspca/gspca.c @@ -818,10 +818,7 @@ static int create_urbs(struct gspca_dev *gspca_dev, ep->desc.bEndpointAddress); urb->transfer_flags = URB_ISO_ASAP | URB_NO_TRANSFER_DMA_MAP; - if (gspca_dev->dev->speed == USB_SPEED_LOW) - urb->interval = ep->desc.bInterval; - else - urb->interval = 1 << (ep->desc.bInterval - 1); + urb->interval = 1 << (ep->desc.bInterval - 1); urb->complete = isoc_irq; urb->number_of_packets = npkt; for (i = 0; i < npkt; i++) { |