[media] [1/2,ver,1.89] DM04/QQBOX Interupt Urb and Timing changes

Reduce buffer size of Interupt urb to 128 bytes and polling
interval to 8.

The devices buffer appears to only handle a maxium of 40 bytes.
If the buffer is full a slowing effect is noticed causing occasionnal
dropped streaming packets.

Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

diff --git a/drivers/media/dvb/dvb-usb/lmedm04.c b/drivers/media/dvb/dvb-usb/lmedm04.c
index 55b25be..5fdeed1 100644 (file)
--- a/drivers/media/dvb/dvb-usb/lmedm04.c
+++ b/drivers/media/dvb/dvb-usb/lmedm04.c
@@ -333,7 +333,7 @@ static int lme2510_int_read(struct dvb_usb_adapter *adap)
        if (lme_int->lme_urb == NULL)
                        return -ENOMEM;
 
-       lme_int->buffer = usb_alloc_coherent(adap->dev->udev, 5000, GFP_ATOMIC,
+       lme_int->buffer = usb_alloc_coherent(adap->dev->udev, 128, GFP_ATOMIC,
                                        &lme_int->lme_urb->transfer_dma);
 
        if (lme_int->buffer == NULL)
@@ -343,10 +343,10 @@ static int lme2510_int_read(struct dvb_usb_adapter *adap)
                                adap->dev->udev,
                                usb_rcvintpipe(adap->dev->udev, 0xa),
                                lme_int->buffer,
-                               4096,
+                               128,
                                lme2510_int_response,
                                adap,
-                               11);
+                               8);
 
        lme_int->lme_urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
 
@@ -1261,7 +1261,7 @@ static void *lme2510_exit_int(struct dvb_usb_device *d)
 
        if (st->lme_urb != NULL) {
                usb_kill_urb(st->lme_urb);
-               usb_free_coherent(d->udev, 5000, st->buffer,
+               usb_free_coherent(d->udev, 128, st->buffer,
                                  st->lme_urb->transfer_dma);
                info("Interrupt Service Stopped");
        }
@@ -1312,5 +1312,5 @@ module_exit(lme2510_module_exit);
 
 MODULE_AUTHOR("Malcolm Priestley <tvboxspy@gmail.com>");
 MODULE_DESCRIPTION("LME2510(C) DVB-S USB2.0");
-MODULE_VERSION("1.88");
+MODULE_VERSION("1.89");
 MODULE_LICENSE("GPL");