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 <tvbox...@gmail.com>
---
drivers/media/dvb/dvb-usb/lmedm04.c | 10 +++++-----
1 files changed, 5 insertions(+), 5 deletions(-)
diff --git a/drivers/media/dvb/dvb-usb/lmedm04.c
b/drivers/media/dvb/dvb-usb/lmedm04.c
index 55b25be..5fdeed1 100644
--- 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 <tvbox...@gmail.com>");
MODULE_DESCRIPTION("LME2510(C) DVB-S USB2.0");
-MODULE_VERSION("1.88");
+MODULE_VERSION("1.89");
MODULE_LICENSE("GPL");
--
1.7.5.4
--
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