diff options
Diffstat (limited to 'drivers/media/usb/em28xx/em28xx-audio.c')
| -rw-r--r-- | drivers/media/usb/em28xx/em28xx-audio.c | 23 |
1 files changed, 14 insertions, 9 deletions
diff --git a/drivers/media/usb/em28xx/em28xx-audio.c b/drivers/media/usb/em28xx/em28xx-audio.c index 7f8601427b7f..7969ddb9e2dd 100644 --- a/drivers/media/usb/em28xx/em28xx-audio.c +++ b/drivers/media/usb/em28xx/em28xx-audio.c @@ -279,6 +279,8 @@ static int snd_em28xx_capture_open(struct snd_pcm_substream *substream) if (dev->adev.users == 0) { if (dev->alt == 0 || dev->is_audio_only) { + struct usb_device *udev = interface_to_usbdev(dev->intf); + if (dev->is_audio_only) /* audio is on a separate interface */ dev->alt = 1; @@ -296,7 +298,7 @@ static int snd_em28xx_capture_open(struct snd_pcm_substream *substream) */ dprintk("changing alternate number on interface %d to %d\n", dev->ifnum, dev->alt); - usb_set_interface(dev->udev, dev->ifnum, dev->alt); + usb_set_interface(udev, dev->ifnum, dev->alt); } /* Sets volume, mute, etc */ @@ -714,6 +716,7 @@ static const struct snd_pcm_ops snd_em28xx_pcm_capture = { static void em28xx_audio_free_urb(struct em28xx *dev) { + struct usb_device *udev = interface_to_usbdev(dev->intf); int i; for (i = 0; i < dev->adev.num_urb; i++) { @@ -722,7 +725,7 @@ static void em28xx_audio_free_urb(struct em28xx *dev) if (!urb) continue; - usb_free_coherent(dev->udev, urb->transfer_buffer_length, + usb_free_coherent(udev, urb->transfer_buffer_length, dev->adev.transfer_buffer[i], urb->transfer_dma); @@ -749,6 +752,7 @@ static int em28xx_audio_urb_init(struct em28xx *dev) { struct usb_interface *intf; struct usb_endpoint_descriptor *e, *ep = NULL; + struct usb_device *udev = interface_to_usbdev(dev->intf); int i, ep_size, interval, num_urb, npackets; int urb_size, bytes_per_transfer; u8 alt; @@ -758,7 +762,7 @@ static int em28xx_audio_urb_init(struct em28xx *dev) else alt = 7; - intf = usb_ifnum_to_if(dev->udev, dev->ifnum); + intf = usb_ifnum_to_if(udev, dev->ifnum); if (intf->num_altsetting <= alt) { dev_err(&dev->intf->dev, "alt %d doesn't exist on interface %d\n", @@ -781,12 +785,12 @@ static int em28xx_audio_urb_init(struct em28xx *dev) return -ENODEV; } - ep_size = em28xx_audio_ep_packet_size(dev->udev, ep); + ep_size = em28xx_audio_ep_packet_size(udev, ep); interval = 1 << (ep->bInterval - 1); dev_info(&dev->intf->dev, "Endpoint 0x%02x %s on intf %d alt %d interval = %d, size %d\n", - EM28XX_EP_AUDIO, usb_speed_string(dev->udev->speed), + EM28XX_EP_AUDIO, usb_speed_string(udev->speed), dev->ifnum, alt, interval, ep_size); /* Calculate the number and size of URBs to better fit the audio samples */ @@ -860,7 +864,7 @@ static int em28xx_audio_urb_init(struct em28xx *dev) } dev->adev.urb[i] = urb; - buf = usb_alloc_coherent(dev->udev, npackets * ep_size, GFP_ATOMIC, + buf = usb_alloc_coherent(udev, npackets * ep_size, GFP_ATOMIC, &urb->transfer_dma); if (!buf) { dev_err(&dev->intf->dev, @@ -870,9 +874,9 @@ static int em28xx_audio_urb_init(struct em28xx *dev) } dev->adev.transfer_buffer[i] = buf; - urb->dev = dev->udev; + urb->dev = udev; urb->context = dev; - urb->pipe = usb_rcvisocpipe(dev->udev, EM28XX_EP_AUDIO); + urb->pipe = usb_rcvisocpipe(udev, EM28XX_EP_AUDIO); urb->transfer_flags = URB_ISO_ASAP | URB_NO_TRANSFER_DMA_MAP; urb->transfer_buffer = buf; urb->interval = interval; @@ -892,6 +896,7 @@ static int em28xx_audio_urb_init(struct em28xx *dev) static int em28xx_audio_init(struct em28xx *dev) { struct em28xx_audio *adev = &dev->adev; + struct usb_device *udev = interface_to_usbdev(dev->intf); struct snd_pcm *pcm; struct snd_card *card; static int devnr; @@ -920,7 +925,7 @@ static int em28xx_audio_init(struct em28xx *dev) spin_lock_init(&adev->slock); adev->sndcard = card; - adev->udev = dev->udev; + adev->udev = udev; err = snd_pcm_new(card, "Em28xx Audio", 0, 0, 1, &pcm); if (err < 0) |