From c912e7a58054304575fe88574c776be7e684098e Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Wed, 24 Jun 2009 14:14:34 +0200 Subject: ALSA: hda - Fix support for Samsung P50 with AD1986A codec Samsung P50 requires the HP auto-muting unlike other Samsung models. Added a new model=samsung-p50 to support this. Signed-off-by: Takashi Iwai --- Documentation/sound/alsa/HD-Audio-Models.txt | 1 + 1 file changed, 1 insertion(+) (limited to 'Documentation/sound') diff --git a/Documentation/sound/alsa/HD-Audio-Models.txt b/Documentation/sound/alsa/HD-Audio-Models.txt index 0d8d23581c4..939a3dd5814 100644 --- a/Documentation/sound/alsa/HD-Audio-Models.txt +++ b/Documentation/sound/alsa/HD-Audio-Models.txt @@ -240,6 +240,7 @@ AD1986A laptop-automute 2-channel with EAPD and HP-automute (Lenovo N100) ultra 2-channel with EAPD (Samsung Ultra tablet PC) samsung 2-channel with EAPD (Samsung R65) + samsung-p50 2-channel with HP-automute (Samsung P50) AD1988/AD1988B/AD1989A/AD1989B ============================== -- cgit v1.2.3 From cedb8118e8cef21a2b73fd9cb70660ac19124c16 Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Thu, 23 Jul 2009 11:04:13 +0200 Subject: ALSA: pcm - Add logging of hwptr updates and interrupt updates Added the logging functionality to xrun_debug to record the hwptr updates via snd_pcm_update_hw_ptr() and snd_pcm_update_hwptr_interrupt(), corresponding to 16 and 8, respectively. For example, # echo 9 > /proc/asound/card0/pcm0p/xrun_debug will record the position and other parameters at each period interrupt together with the normal XRUN debugging. Signed-off-by: Takashi Iwai --- Documentation/sound/alsa/Procfile.txt | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'Documentation/sound') diff --git a/Documentation/sound/alsa/Procfile.txt b/Documentation/sound/alsa/Procfile.txt index 381908d8ca4..719a819f8cc 100644 --- a/Documentation/sound/alsa/Procfile.txt +++ b/Documentation/sound/alsa/Procfile.txt @@ -101,6 +101,8 @@ card*/pcm*/xrun_debug bit 0 = Enable XRUN/jiffies debug messages bit 1 = Show stack trace at XRUN / jiffies check bit 2 = Enable additional jiffies check + bit 3 = Log hwptr update at each period interrupt + bit 4 = Log hwptr update at each snd_pcm_update_hw_ptr() When the bit 0 is set, the driver will show the messages to kernel log when an xrun is detected. The debug message is @@ -117,6 +119,9 @@ card*/pcm*/xrun_debug buggy) hardware that doesn't give smooth pointer updates. This feature is enabled via the bit 2. + Bits 3 and 4 are for logging the hwptr records. Note that + these will give flood of kernel messages. + card*/pcm*/sub*/info The general information of this PCM sub-stream. -- cgit v1.2.3