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authorMark Brown <broonie@opensource.wolfsonmicro.com>2008-07-28 19:05:36 +0100
committerJaroslav Kysela <perex@perex.cz>2008-07-29 21:32:06 +0200
commit0d94e41abe271c86df06bcf72d24f9ca7ce771f0 (patch)
tree6810d9b350d2fc8b0579d082206587f07bea5d96 /sound
parente76d8ceaaff9d7fc1ba2b1963a9f34151832223b (diff)
downloadlinaro-lsk-0d94e41abe271c86df06bcf72d24f9ca7ce771f0.tar.gz
ALSA: Build jack detection
Since jack detection requires the input subsystem which may not be desired on small systems it is not built unless required by a driver that is being built. Drivers using jack detection should use a pattern like this: config SND_FOO tristate "..." ... select SND_JACK if INPUT=y || INPUT=SND to ensure that the jack detection API is enabled if the input subsystem is. If the input subsystem is not enabled then a stub version of the API is provided. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@perex.cz>
Diffstat (limited to 'sound')
-rw-r--r--sound/core/Kconfig6
-rw-r--r--sound/core/Makefile1
2 files changed, 7 insertions, 0 deletions
diff --git a/sound/core/Kconfig b/sound/core/Kconfig
index 335d45ecde6..9c4da1cd4a6 100644
--- a/sound/core/Kconfig
+++ b/sound/core/Kconfig
@@ -12,6 +12,12 @@ config SND_HWDEP
config SND_RAWMIDI
tristate
+# To be effective this also requires INPUT - users should say:
+# select SND_JACK if INPUT=y || INPUT=SND
+# to avoid having to force INPUT on.
+config SND_JACK
+ bool
+
config SND_SEQUENCER
tristate "Sequencer support"
select SND_TIMER
diff --git a/sound/core/Makefile b/sound/core/Makefile
index da8e685eef9..d57125a5687 100644
--- a/sound/core/Makefile
+++ b/sound/core/Makefile
@@ -7,6 +7,7 @@ snd-y := sound.o init.o memory.o info.o control.o misc.o device.o
snd-$(CONFIG_ISA_DMA_API) += isadma.o
snd-$(CONFIG_SND_OSSEMUL) += sound_oss.o info_oss.o
snd-$(CONFIG_SND_VMASTER) += vmaster.o
+snd-$(CONFIG_SND_JACK) += jack.o
snd-pcm-objs := pcm.o pcm_native.o pcm_lib.o pcm_timer.o pcm_misc.o \
pcm_memory.o