linux/sound
Pierre-Louis Bossart ea33d359c4 ALSA: usb: update trigger timestamp on first non-zero URB submitted
The first URBs are submitted during the prepare stage. When .trigger is
called, the ALSA core saves a trigger tstamp that doesn't correspond to
the actual time when the samples are submitted. The trigger_tstamp is
now updated when the first data are submitted to avoid any time offsets.

A usb-specific trigger_tstamp_pending_update flag is used for now,
at some point the flag would need to move to the ALSA core, USB
is not the only interface where silent block transfers are programmed
as part of the prepare stage, with actual data enabled when .trigger
is called.

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-02-09 16:02:43 +01:00
..
aoa Merge branch 'topic/snd-device' into for-next 2015-02-03 17:57:16 +01:00
arm ALSA: Deletion of checks before the function call "iounmap" 2015-01-04 15:13:45 +01:00
atmel ALSA: sound/atmel/ac97c.c: Add device tree support 2015-01-07 07:56:19 +01:00
core ALSA: pcm: allow for trigger_tstamp snapshot in .trigger 2015-02-09 16:01:53 +01:00
drivers ALSA: Include linux/uaccess.h and linux/bitopts.h instead of asm/* 2015-01-28 17:25:07 +01:00
firewire ALSA: firewire-lib: limit the MIDI data rate 2015-01-16 22:51:23 +01:00
i2c Merge branch 'topic/ak411x-fix' into for-next 2015-01-28 22:32:10 +01:00
isa ALSA: Include linux/uaccess.h and linux/bitopts.h instead of asm/* 2015-01-28 17:25:07 +01:00
mips Driver core patches for 3.19-rc1 2014-12-14 16:10:09 -08:00
oss sound/oss: use current->state helpers 2015-01-15 08:32:27 +01:00
parisc ALSA: Include linux/io.h instead of asm/io.h 2015-01-28 16:49:33 +01:00
pci ALSA: hda: read trigger_timestamp immediately after starting DMA 2015-02-09 16:02:11 +01:00
pcmcia ALSA: vx: Fix missing kerneldoc parameter descriptions 2014-11-11 09:39:10 +01:00
ppc ALSA: Include linux/io.h instead of asm/io.h 2015-01-28 16:49:33 +01:00
sh ALSA: Include linux/io.h instead of asm/io.h 2015-01-28 16:49:33 +01:00
soc ASoC: Final updates for v3.20 2015-02-09 08:54:50 +01:00
sparc ALSA: Include linux/io.h instead of asm/io.h 2015-01-28 16:49:33 +01:00
spi
synth ALSA: Include linux/uaccess.h and linux/bitopts.h instead of asm/* 2015-01-28 17:25:07 +01:00
usb ALSA: usb: update trigger timestamp on first non-zero URB submitted 2015-02-09 16:02:43 +01:00
ac97_bus.c
Kconfig
last.c
Makefile
sound_core.c
sound_firmware.c