diff options
| author |   Clemens Ladisch <clemens@ladisch.de> | 2013-04-27 12:10:32 +0200 |
|---|---|---|
| committer |   Takashi Iwai <tiwai@suse.de> | 2013-04-29 10:57:35 +0200 |
| commit | c75c5ab575af7db707689cdbb5a5c458e9a034bb (patch) | |
| tree | 66bf7a427bcb7a46de41f58efdaa3be853b42e6f /sound/usb/caiaq/audio.c | |
| parent | ALSA: usb - Avoid unnecessary sample rate changes on USB 2.0 clock sources (diff) | |
| download | linux-dev-c75c5ab575af7db707689cdbb5a5c458e9a034bb.tar.xz linux-dev-c75c5ab575af7db707689cdbb5a5c458e9a034bb.zip | |
ALSA: USB: adjust for changed 3.8 USB API
The recent changes in the USB API ("implement new semantics for
URB_ISO_ASAP") made the former meaning of the URB_ISO_ASAP flag the
default, and changed this flag to mean that URBs can be delayed.
This is not the behaviour wanted by any of the audio drivers because
it leads to discontinuous playback with very small period sizes.
Therefore, our URBs need to be submitted without this flag.
Reported-by: Joe Rayhawk <jrayhawk@fairlystable.org>
Cc: <stable@vger.kernel.org> # 3.8 only
Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/usb/caiaq/audio.c')
| -rw-r--r-- | sound/usb/caiaq/audio.c | 3 |
1 files changed, 0 insertions, 3 deletions
diff --git a/sound/usb/caiaq/audio.c b/sound/usb/caiaq/audio.c index 67330af21b0e..c1916184e2e1 100644 --- a/sound/usb/caiaq/audio.c +++ b/sound/usb/caiaq/audio.c @@ -683,7 +683,6 @@ static void read_completed(struct urb *urb) if (send_it) { out->number_of_packets = outframe; - out->transfer_flags = URB_ISO_ASAP; usb_submit_urb(out, GFP_ATOMIC); } else { struct snd_usb_caiaq_cb_info *oinfo = out->context; @@ -699,7 +698,6 @@ requeue: } urb->number_of_packets = FRAMES_PER_URB; - urb->transfer_flags = URB_ISO_ASAP; usb_submit_urb(urb, GFP_ATOMIC); } @@ -765,7 +763,6 @@ static struct urb **alloc_urbs(struct snd_usb_caiaqdev *cdev, int dir, int *ret) * BYTES_PER_FRAME; urbs[i]->context = &cdev->data_cb_info[i]; urbs[i]->interval = 1; - urbs[i]->transfer_flags = URB_ISO_ASAP; urbs[i]->number_of_packets = FRAMES_PER_URB; urbs[i]->complete = (dir == SNDRV_PCM_STREAM_CAPTURE) ? read_completed : write_completed; |