diff options
Diffstat (limited to 'drivers/media/usb/em28xx')
| -rw-r--r-- | drivers/media/usb/em28xx/em28xx-cards.c | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/drivers/media/usb/em28xx/em28xx-cards.c b/drivers/media/usb/em28xx/em28xx-cards.c index a6f00181c24..bc63b1cee80 100644 --- a/drivers/media/usb/em28xx/em28xx-cards.c +++ b/drivers/media/usb/em28xx/em28xx-cards.c @@ -61,6 +61,11 @@ static unsigned int card[] = {[0 ... (EM28XX_MAXBOARDS - 1)] = UNSET }; module_param_array(card, int, NULL, 0444); MODULE_PARM_DESC(card, "card type"); +static unsigned int prefer_bulk; +module_param(prefer_bulk, int, 0644); +MODULE_PARM_DESC(prefer_bulk, "prefer USB bulk transfers"); + + /* Bitmask marking allocated devices from 0 to EM28XX_MAXBOARDS - 1 */ static unsigned long em28xx_devused; @@ -3332,9 +3337,11 @@ static int em28xx_usb_probe(struct usb_interface *interface, } /* Select USB transfer types to use */ - if (has_video && !dev->analog_ep_isoc) + if (has_video && + (!dev->analog_ep_isoc || (prefer_bulk && dev->analog_ep_bulk))) dev->analog_xfer_bulk = 1; - if (has_dvb && !dev->dvb_ep_isoc) + if (has_dvb && + (!dev->dvb_ep_isoc || (prefer_bulk && dev->dvb_ep_bulk))) dev->dvb_xfer_bulk = 1; snprintf(dev->name, sizeof(dev->name), "em28xx #%d", nr); |