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Subject: [media] [1/2,ver,1.89] DM04/QQBOX Interupt Urb and Timing changes Author: tvboxspy <[email protected]> Date: Sun Sep 11 19:26:50 2011 -0300 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 <[email protected]> Signed-off-by: Mauro Carvalho Chehab <[email protected]> drivers/media/dvb/dvb-usb/lmedm04.c | 10 +++++----- 1 files changed, 5 insertions(+), 5 deletions(-) --- http://git.linuxtv.org/media_tree.git?a=commitdiff;h=95c21c4158cc8b5a2920ccbe989b17b6f955d976 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 <[email protected]>"); MODULE_DESCRIPTION("LME2510(C) DVB-S USB2.0"); -MODULE_VERSION("1.88"); +MODULE_VERSION("1.89"); MODULE_LICENSE("GPL"); _______________________________________________ linuxtv-commits mailing list [email protected] http://www.linuxtv.org/cgi-bin/mailman/listinfo/linuxtv-commits
