aboutsummaryrefslogtreecommitdiffstats
path: root/include/sound/tlv.h (follow)
AgeCommit message (Collapse)AuthorFilesLines
2010-10-17ALSA: tlv - Define numbers in sound/tlv.hTakashi Iwai1-1/+3
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2009-06-17ALSA: Add new TLV types for dBwith min/maxTakashi Iwai1-0/+14
Add new types for TLV dB scale specified with min/max values instead of min/step since the resolution can't match always with the one a device provides. For example, usb audio devices give 1/256 dB resolution while ALSA TLV is based on 1/100 dB resolution. The new min/max types have less problems because the possible rounding error happens only at min/max. Signed-off-by: Takashi Iwai <tiwai@suse.de>
2007-10-16[ALSA] Changed Jaroslav Kysela's e-mail from perex@suse.cz to perex@perex.czJaroslav Kysela1-1/+1
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2006-09-23[ALSA] Add definition of TLV dB range compoundTakashi Iwai1-8/+15
Added the definition of TLV dB range compound. It contains one or more dB-range or linear-volume TLV entries with min/max ranges. Used for volume controls with non-linear curves. Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@suse.cz>
2006-09-23[ALSA] Add the definition of linear volume TLVTakashi Iwai1-0/+10
Added the definition of linear volume TLV type. Some DSP chips and codecs (e.g. AK codec) use linear volume control. Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@suse.cz>
2006-09-23[ALSA] Control API - TLV implementation for additional information like dB scaleJaroslav Kysela1-0/+43
This patch implements a TLV mechanism to transfer an additional information like dB scale to the user space. The types might be extended in future. Acked-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@suse.cz>