diff options
| author | Andreas Pape <[email protected]> | 2016-12-06 14:46:14 +0900 |
|---|---|---|
| committer | Takashi Iwai <[email protected]> | 2016-12-06 13:55:59 +0100 |
| commit | fd1a5059610cd3887f1050171a840ca864108730 (patch) | |
| tree | 749a58c5972b72aec1a78c765f2f9cf4b3e1a776 /tools/perf/util/trace-event-scripting.c | |
| parent | 1e2e3fe480064ca33186e5a923beaa160efed35d (diff) | |
ALSA: usb-audio: more tolerant packetsize
since commit 57e6dae1087b ("ALSA: usb-audio: do not trust too-big
wMaxPacketSize values"), the expected packetsize is always limited
to nominal + 25%. It was discovered, that some devices (Android audio
accessory) have a much higher jitter in used packetsizes than 25%
which would result in BABBLE condition and dropping of packets.
A better solution is so assume the jitter to be the nominal packetsize:
-one nearly empty packet followed by a almost 150% sized one.
V2: changed to assume max frequency is +50 of nominal packetsize.
Signed-off-by: Andreas Pape <[email protected]>
Signed-off-by: Jiada Wang <[email protected]>
Acked-by: Clemens Ladisch <[email protected]>
Signed-off-by: Takashi Iwai <[email protected]>
Diffstat (limited to 'tools/perf/util/trace-event-scripting.c')
0 files changed, 0 insertions, 0 deletions