diff options
Diffstat (limited to 'recipes/jack/files/jack_fix_TWL4030_alsa_capture.patch')
| -rw-r--r-- | recipes/jack/files/jack_fix_TWL4030_alsa_capture.patch | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/recipes/jack/files/jack_fix_TWL4030_alsa_capture.patch b/recipes/jack/files/jack_fix_TWL4030_alsa_capture.patch new file mode 100644 index 0000000000..77337ff6c7 --- /dev/null +++ b/recipes/jack/files/jack_fix_TWL4030_alsa_capture.patch @@ -0,0 +1,31 @@ +--- a/drivers/alsa/alsa_driver.c 2009-05-06 06:36:08.000000000 +1000 ++++ b/drivers/alsa/alsa_driver.c 2010-07-28 21:02:57.238101024 +1000 +@@ -2388,7 +2388,7 @@ + strcpy (params[i].name, "period"); + params[i].character = 'p'; + params[i].type = JackDriverParamUInt; +- params[i].value.ui = 1024U; ++ params[i].value.ui = 256U; /* TWL4030 capture. */ + strcpy (params[i].short_desc, "Frames per period"); + strcpy (params[i].long_desc, params[i].short_desc); + +@@ -2396,7 +2396,7 @@ + strcpy (params[i].name, "nperiods"); + params[i].character = 'n'; + params[i].type = JackDriverParamUInt; +- params[i].value.ui = 2U; ++ params[i].value.ui = 4U; /* TWL4030 capture. */ + strcpy (params[i].short_desc, "Number of periods of playback latency"); + strcpy (params[i].long_desc, params[i].short_desc); + +@@ -2518,8 +2518,8 @@ + driver_initialize (jack_client_t *client, const JSList * params) + { + jack_nframes_t srate = 48000; +- jack_nframes_t frames_per_interrupt = 1024; +- unsigned long user_nperiods = 2; ++ jack_nframes_t frames_per_interrupt = 256; /* TWL4030 needs small number of frames here. */ ++ unsigned long user_nperiods = 4; /* TWL4030 needs 4 periods to avoid XRuns. */ + char *playback_pcm_name = "hw:0"; + char *capture_pcm_name = "hw:0"; + int hw_monitoring = FALSE; |