From a869057cd639ed41a1b16bc072fb20cb1ed1dc51 Mon Sep 17 00:00:00 2001 From: Oswald Buddenhagen Date: Sat, 22 Apr 2023 18:10:15 +0200 Subject: ALSA: emu10k1: comment updates Move comments to better locations, de-duplicate, fix/remove incorrect/ outdated ones, add new ones, and unify spacing somewhat. While at it, also add testing credits for Jonathan Dowland (SB Live! Platinum) and myself (E-MU 0404b). Signed-off-by: Oswald Buddenhagen Link: https://lore.kernel.org/r/20230422161021.1143903-2-oswald.buddenhagen@gmx.de Signed-off-by: Takashi Iwai --- include/uapi/sound/emu10k1.h | 3 +++ 1 file changed, 3 insertions(+) (limited to 'include/uapi/sound') diff --git a/include/uapi/sound/emu10k1.h b/include/uapi/sound/emu10k1.h index c2414bd5aecd..33e5228f5d8c 100644 --- a/include/uapi/sound/emu10k1.h +++ b/include/uapi/sound/emu10k1.h @@ -111,6 +111,9 @@ #define CC_REG_NONZERO C_00000100 /* FX buses */ +// These are arbitrary mappings; our DSP code simply expects +// the config files to route the channels this way. +// The numbers are documented in {audigy,sb-live}-mixer.rst. #define FXBUS_PCM_LEFT 0x00 #define FXBUS_PCM_RIGHT 0x01 #define FXBUS_PCM_LEFT_REAR 0x02 -- cgit v1.2.3