linux/sound
Takashi Iwai 0ebaa24c6b ALSA: hda - Add static_hdmi_pcm option to HDMI codec parser
The dynamic PCM restriction based on ELD information may lead to the
problem in some cases, e.g. when the receiver is turned off.  Then it
may send a TV HDMI default such as channels = 2.  Since it's still
plugged, the driver doesn't know whether it's the right configuration
for future use.  Now, when an app opens the device at this moment,
then turn on the receiver, the app still sends channels=2.

The right solution is to implement some kind of notification and
automatic re-open mechanism.  But, this is a goal far ahead.

This patch provides a workaround for such a case by providing a new
module option static_hdmi_pcm for snd-hda-codec-hdmi module.  When
this is set to true, the driver doesn't change PCM parameters per
ELD information.  For users who need the static configuration like
the scenario above, set this to true.

The parameter can be changed dynamically via sysfs, too.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Cc: <stable@kernel.org>
2011-01-12 07:46:06 +01:00
..
aoa
arm
atmel ALSA: atmel - Fix the return value in error path 2010-11-22 10:57:17 +01:00
core ALSA: pcm: remember to always call va_end() on stuff that we va_start() 2010-12-21 08:03:09 +01:00
drivers Merge remote branch 'alsa/devel' into topic/misc 2010-10-20 12:22:11 +02:00
i2c Merge branch 'fix/misc' into topic/misc 2010-10-11 13:45:22 +02:00
isa Merge branch 'fix/misc' into topic/misc 2010-09-09 10:51:45 +02:00
mips
oss sound: Prevent buffer overflow in OSS load_mixer_volumes 2010-12-30 13:20:55 +01:00
parisc
pci ALSA: hda - Add static_hdmi_pcm option to HDMI codec parser 2011-01-12 07:46:06 +01:00
pcmcia pcmcia: move driver name to struct pcmcia_driver 2010-09-29 17:20:24 +02:00
ppc ALSA: sound/ppc: Use printf extension %pR for struct resource 2010-11-22 07:41:25 +01:00
sh sound: sh: ctrl_in/outX to __raw_read/writeX conversion. 2010-10-27 15:53:50 +09:00
soc ASoC: Fix bias power down of non-DAPM codec 2010-12-13 16:47:48 +00:00
sparc
spi ALSA: AT73C213: Rectify misleading comment. 2010-11-11 02:03:29 +01:00
synth ALSA: emux: Add trivial compat ioctl handler 2010-09-14 16:18:11 +02:00
usb ALSA: usb-audio - Support for Power/Status LED on Creative USB X-Fi S51 2010-11-02 12:40:11 +01:00
ac97_bus.c
Kconfig
last.c
Makefile
sound_core.c BKL: remove extraneous #include <smp_lock.h> 2010-11-17 08:59:32 -08:00
sound_firmware.c