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Commit 95c21c41 authored by tvboxspy's avatar tvboxspy Committed by Mauro Carvalho Chehab
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[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: default avatarMalcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@redhat.com>
parent 69803ecf

drivers/media/dvb/dvb-usb/lmedm04.c

+5 −5
Original line number Diff line number Diff line
@@ -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");