diff options
Diffstat (limited to 'drivers/media/usb/dvb-usb-v2/lmedm04.c')
| -rw-r--r-- | drivers/media/usb/dvb-usb-v2/lmedm04.c | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/drivers/media/usb/dvb-usb-v2/lmedm04.c b/drivers/media/usb/dvb-usb-v2/lmedm04.c index 9f2c5459b73a..2273ce78f5c8 100644 --- a/drivers/media/usb/dvb-usb-v2/lmedm04.c +++ b/drivers/media/usb/dvb-usb-v2/lmedm04.c @@ -344,15 +344,17 @@ static void lme2510_int_response(struct urb *lme_urb) usb_submit_urb(lme_urb, GFP_ATOMIC); - /* interrupt urb is due every 48 msecs while streaming - * add 12msecs for system lag */ - st->int_urb_due = jiffies + msecs_to_jiffies(60); + /* Interrupt urb is due every 48 msecs while streaming the buffer + * stores up to 4 periods if missed. Allow 200 msec for next interrupt. + */ + st->int_urb_due = jiffies + msecs_to_jiffies(200); } static int lme2510_int_read(struct dvb_usb_adapter *adap) { struct dvb_usb_device *d = adap_to_d(adap); struct lme2510_state *lme_int = adap_to_priv(adap); + struct usb_host_endpoint *ep; lme_int->lme_urb = usb_alloc_urb(0, GFP_ATOMIC); @@ -374,6 +376,12 @@ static int lme2510_int_read(struct dvb_usb_adapter *adap) adap, 8); + /* Quirk of pipe reporting PIPE_BULK but behaves as interrupt */ + ep = usb_pipe_endpoint(d->udev, lme_int->lme_urb->pipe); + + if (usb_endpoint_type(&ep->desc) == USB_ENDPOINT_XFER_BULK) + lme_int->lme_urb->pipe = usb_rcvbulkpipe(d->udev, 0xa), + lme_int->lme_urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; usb_submit_urb(lme_int->lme_urb, GFP_ATOMIC); |