diff options
Diffstat (limited to 'drivers/media/usb/em28xx/em28xx-dvb.c')
| -rw-r--r-- | drivers/media/usb/em28xx/em28xx-dvb.c | 34 |
1 files changed, 24 insertions, 10 deletions
diff --git a/drivers/media/usb/em28xx/em28xx-dvb.c b/drivers/media/usb/em28xx/em28xx-dvb.c index 24962520df80..a70b19e07e37 100644 --- a/drivers/media/usb/em28xx/em28xx-dvb.c +++ b/drivers/media/usb/em28xx/em28xx-dvb.c @@ -176,25 +176,39 @@ static int em28xx_start_streaming(struct em28xx_dvb *dvb) { int rc; struct em28xx *dev = dvb->adapter.priv; - int max_dvb_packet_size; + int dvb_max_packet_size, packet_multiplier, dvb_alt; + + if (dev->dvb_xfer_bulk) { + if (!dev->dvb_ep_bulk) + return -ENODEV; + dvb_max_packet_size = 512; /* USB 2.0 spec */ + packet_multiplier = EM28XX_DVB_BULK_PACKET_MULTIPLIER; + dvb_alt = 0; + } else { /* isoc */ + if (!dev->dvb_ep_isoc) + return -ENODEV; + dvb_max_packet_size = dev->dvb_max_pkt_size_isoc; + if (dvb_max_packet_size < 0) + return dvb_max_packet_size; + packet_multiplier = EM28XX_DVB_NUM_ISOC_PACKETS; + dvb_alt = dev->dvb_alt_isoc; + } - usb_set_interface(dev->udev, 0, dev->dvb_alt_isoc); + usb_set_interface(dev->udev, 0, dvb_alt); rc = em28xx_set_mode(dev, EM28XX_DIGITAL_MODE); if (rc < 0) return rc; - max_dvb_packet_size = dev->dvb_max_pkt_size_isoc; - if (max_dvb_packet_size < 0) - return max_dvb_packet_size; dprintk(1, "Using %d buffers each with %d x %d bytes\n", EM28XX_DVB_NUM_BUFS, - EM28XX_DVB_NUM_ISOC_PACKETS, - max_dvb_packet_size); + packet_multiplier, + dvb_max_packet_size); - return em28xx_init_usb_xfer(dev, EM28XX_DIGITAL_MODE, 0, + return em28xx_init_usb_xfer(dev, EM28XX_DIGITAL_MODE, + dev->dvb_xfer_bulk, EM28XX_DVB_NUM_BUFS, - max_dvb_packet_size, - EM28XX_DVB_NUM_ISOC_PACKETS, + dvb_max_packet_size, + packet_multiplier, em28xx_dvb_urb_data_copy); } |