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

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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>
This commit is contained in:
tvboxspy 2011-09-11 19:26:50 -03:00 committed by Mauro Carvalho Chehab
parent 69803ecf3a
commit 95c21c4158
1 changed files with 5 additions and 5 deletions
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10
drivers/media/dvb/dvb-usb/lmedm04.c
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@ -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");