diff options
Diffstat (limited to 'Documentation/sound/alsa')
-rw-r--r-- | Documentation/sound/alsa/ControlNames.txt | 32 | ||||
-rw-r--r-- | Documentation/sound/alsa/HD-Audio-Models.txt | 8 | ||||
-rw-r--r-- | Documentation/sound/alsa/Procfile.txt | 17 |
3 files changed, 33 insertions, 24 deletions
diff --git a/Documentation/sound/alsa/ControlNames.txt b/Documentation/sound/alsa/ControlNames.txt index fea65bb6269e..79a6127863ca 100644 --- a/Documentation/sound/alsa/ControlNames.txt +++ b/Documentation/sound/alsa/ControlNames.txt @@ -1,6 +1,6 @@ This document describes standard names of mixer controls. -Syntax: SOURCE [DIRECTION] FUNCTION +Syntax: [LOCATION] SOURCE [CHANNEL] [DIRECTION] FUNCTION DIRECTION: <nothing> (both directions) @@ -14,12 +14,29 @@ FUNCTION: Volume Route (route control, hardware specific) +CHANNEL: + <nothing> (channel independent, or applies to all channels) + Front + Surround (rear left/right in 4.0/5.1 surround) + CLFE + Center + LFE + Side (side left/right for 7.1 surround) + +LOCATION: (physical location of source) + Front + Rear + Dock (docking station) + Internal + SOURCE: Master Master Mono Hardware Master Speaker (internal speaker) + Bass Speaker (internal LFE speaker) Headphone + Line Out Beep (beep generator) Phone Phone Input @@ -27,14 +44,14 @@ SOURCE: Synth FM Mic - Line + Headset Mic (mic part of combined headset jack - 4-pin headphone + mic) + Headphone Mic (mic part of either/or - 3-pin headphone or mic) + Line (input only, use "Line Out" for output) CD Video Zoom Video Aux PCM - PCM Front - PCM Rear PCM Pan Loopback Analog Loopback (D/A -> A/D loopback) @@ -47,8 +64,13 @@ SOURCE: Music I2S IEC958 + HDMI + SPDIF (output only) + SPDIF In + Digital In + HDMI/DP (either HDMI or DisplayPort) -Exceptions: +Exceptions (deprecated): [Digital] Capture Source [Digital] Capture Switch (aka input gain switch) [Digital] Capture Volume (aka input gain volume) diff --git a/Documentation/sound/alsa/HD-Audio-Models.txt b/Documentation/sound/alsa/HD-Audio-Models.txt index a5e754714344..5a3163cac6c3 100644 --- a/Documentation/sound/alsa/HD-Audio-Models.txt +++ b/Documentation/sound/alsa/HD-Audio-Models.txt @@ -113,14 +113,10 @@ AD1984 AD1986A ======= - 6stack 6-jack, separate surrounds (default) 3stack 3-stack, shared surrounds laptop 2-channel only (FSC V2060, Samsung M50) - laptop-eapd 2-channel with EAPD (ASUS A6J) - 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) + laptop-imic 2-channel with built-in mic + eapd Turn on EAPD constantly AD1988/AD1988B/AD1989A/AD1989B ============================== diff --git a/Documentation/sound/alsa/Procfile.txt b/Documentation/sound/alsa/Procfile.txt index 7fcd1ad96fcc..7f8a0d325905 100644 --- a/Documentation/sound/alsa/Procfile.txt +++ b/Documentation/sound/alsa/Procfile.txt @@ -101,10 +101,6 @@ 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() - bit 5 = Show last 10 positions on error - bit 6 = Do above only once When the bit 0 is set, the driver will show the messages to kernel log when an xrun is detected. The debug message is @@ -121,15 +117,6 @@ 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. - - When bit 5 is set, the driver logs the last 10 xrun errors and - the proc file shows each jiffies, position, period_size, - buffer_size, old_hw_ptr, and hw_ptr_base values. - - When bit 6 is set, the full xrun log is shown only once. - card*/pcm*/sub*/info The general information of this PCM sub-stream. @@ -146,6 +133,10 @@ card*/pcm*/sub*/sw_params card*/pcm*/sub*/prealloc The buffer pre-allocation information. +card*/pcm*/sub*/xrun_injection + Triggers an XRUN to the running stream when any value is + written to this proc file. Used for fault injection. + This entry is write-only. AC97 Codec Information ---------------------- |