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authorTakashi Iwai <tiwai@suse.de>2008-01-08 18:05:26 +0100
committerJaroslav Kysela <perex@perex.cz>2008-01-31 17:29:47 +0100
commitd948035a928400ae127c873fbf771389bee18949 (patch)
tree1f8c98f21627e0ae1747c471dfbc3148923d80dd /include
parentfa5717f2099aadb2083d5df4d19af8f9685fa03e (diff)
downloadlinux-d948035a928400ae127c873fbf771389bee18949.tar.gz
[ALSA] Remove PCM xfer_align sw params
The xfer_align sw_params parameter has never been used in a sane manner, and no one understands what this does exactly. The current implementation looks also buggy because it allows write of shorter size than xfer_align. So, if you do partial writes, the write isn't actually aligned at all. Removing this parameter will make some pcm_lib_* code more readable (and less buggy). Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@perex.cz>
Diffstat (limited to 'include')
-rw-r--r--include/sound/asound.h2
-rw-r--r--include/sound/pcm.h1
2 files changed, 1 insertions, 2 deletions
diff --git a/include/sound/asound.h b/include/sound/asound.h
index ee753d782e2..069d9120e62 100644
--- a/include/sound/asound.h
+++ b/include/sound/asound.h
@@ -363,7 +363,7 @@ struct snd_pcm_sw_params {
unsigned int period_step;
unsigned int sleep_min; /* min ticks to sleep */
snd_pcm_uframes_t avail_min; /* min avail frames for wakeup */
- snd_pcm_uframes_t xfer_align; /* xfer size need to be a multiple */
+ snd_pcm_uframes_t xfer_align; /* obsolete: xfer size need to be a multiple */
snd_pcm_uframes_t start_threshold; /* min hw_avail frames for automatic start */
snd_pcm_uframes_t stop_threshold; /* min avail frames for automatic stop */
snd_pcm_uframes_t silence_threshold; /* min distance from noise for silence filling */
diff --git a/include/sound/pcm.h b/include/sound/pcm.h
index 65f636223d3..1270cbce776 100644
--- a/include/sound/pcm.h
+++ b/include/sound/pcm.h
@@ -287,7 +287,6 @@ struct snd_pcm_runtime {
int tstamp_mode; /* mmap timestamp is updated */
unsigned int period_step;
unsigned int sleep_min; /* min ticks to sleep */
- snd_pcm_uframes_t xfer_align; /* xfer size need to be a multiple */
snd_pcm_uframes_t start_threshold;
snd_pcm_uframes_t stop_threshold;
snd_pcm_uframes_t silence_threshold; /* Silence filling happens when